[Buildroot] [PATCH v5 0/5] gobject-introspection: new series

[Buildroot] [PATCH v5 0/5] gobject-introspection: new series

[Adam Duskett]

For official submission to mainline Buildroot:

This new series has the following upgrades:
  - It now works on all architectures supported by qemu-host.
  - Gstreamer1 can now compile gir files properly. (for real this time).
  - General makefile cleanups.
  - New patches that make cross-compiling a bit nicer (thanks, yocto!)
  - Removed a patch that was yocto specific and not needed with buildroot.
  - Added a PKG_GIR_EXTRA_LIBS variable in pkg-autotools.mk

What I could use help with:

- Package updates: I will get around to updating python-gobject as it's needed
  for GStreamer-python (the entire reason I started this venture)
- Comments on the patches themselves would also be appreciated!.
- More testing!

Thanks!

Adam Duskett

Adam Duskett (5):
  qemu-host: remove support for some powerpc processors.
  qemu: add qemu_user_opts
  gstreamer1 packages: explicitly disable introspection
  gobject-introspection: new package
  gstreamer1 packages: add support for introspection

 DEVELOPERS                                         |   1 +
 Makefile                                           |   2 +
 package/Config.in                                  |   1 +
 ...ncomplete-upstream-attempt-at-cross-compi.patch |  50 +++
 ...c-add-host-gi-gi-cross-wrapper-gi-ldd-wra.patch | 203 ++++++++++++
 ...3-giscanner-add-use-binary-wrapper-option.patch |  52 +++
 ...04-giscanner-add-a-use-ldd-wrapper-option.patch |  48 +++
 .../0005-add-PYTHON_INCLUDES-override.patch        |  39 +++
 ...06-giscanner-add-a-lib-dirs-envvar-option.patch |  73 +++++
 .../0007-Add-rpath-links-to-ccompiler.patch        |  29 ++
 .../gobject-introspection/0008-add-Float128.patch  |  28 ++
 package/gobject-introspection/Config.in            |  30 ++
 package/gobject-introspection/cross-ldd            | 362 +++++++++++++++++++++
 package/gobject-introspection/g-ir-compiler.in     |   2 +
 .../g-ir-scanner-lddwrapper.in                     |   2 +
 .../g-ir-scanner-qemuwrapper.in                    |  10 +
 package/gobject-introspection/g-ir-scanner.in      |   3 +
 .../gobject-introspection.hash                     |   4 +
 .../gobject-introspection/gobject-introspection.mk |  90 +++++
 .../gst1-plugins-bad/gst1-plugins-bad.mk           |   8 +-
 ...ncorrect-reference-to-gstreamer-sdp-in-Ma.patch |  28 ++
 .../gst1-plugins-base/gst1-plugins-base.mk         |   8 +-
 package/gstreamer1/gstreamer1/gstreamer1.mk        |   7 +
 package/pkg-autotools.mk                           |   3 +
 package/qemu/Config.in.host                        |   1 +
 package/qemu/qemu.mk                               |  33 +-
 26 files changed, 1114 insertions(+), 3 deletions(-)
 create mode 100644 package/gobject-introspection/0001-Revert-an-incomplete-upstream-attempt-at-cross-compi.patch
 create mode 100644 package/gobject-introspection/0002-configure.ac-add-host-gi-gi-cross-wrapper-gi-ldd-wra.patch
 create mode 100644 package/gobject-introspection/0003-giscanner-add-use-binary-wrapper-option.patch
 create mode 100644 package/gobject-introspection/0004-giscanner-add-a-use-ldd-wrapper-option.patch
 create mode 100644 package/gobject-introspection/0005-add-PYTHON_INCLUDES-override.patch
 create mode 100644 package/gobject-introspection/0006-giscanner-add-a-lib-dirs-envvar-option.patch
 create mode 100644 package/gobject-introspection/0007-Add-rpath-links-to-ccompiler.patch
 create mode 100644 package/gobject-introspection/0008-add-Float128.patch
 create mode 100644 package/gobject-introspection/Config.in
 create mode 100644 package/gobject-introspection/cross-ldd
 create mode 100644 package/gobject-introspection/g-ir-compiler.in
 create mode 100644 package/gobject-introspection/g-ir-scanner-lddwrapper.in
 create mode 100644 package/gobject-introspection/g-ir-scanner-qemuwrapper.in
 create mode 100644 package/gobject-introspection/g-ir-scanner.in
 create mode 100644 package/gobject-introspection/gobject-introspection.hash
 create mode 100644 package/gobject-introspection/gobject-introspection.mk
 create mode 100644 package/gstreamer1/gst1-plugins-base/0001-rtsp-drop-incorrect-reference-to-gstreamer-sdp-in-Ma.patch

-- 
2.14.3

[Buildroot] [PATCH v5 1/5] qemu-host: remove support for some powerpc processors.

[Adam Duskett]

The 620, 630, and 970 are not supported at this time by qemu.

Signed-off-by: Adam Duskett <aduskett@gmail.com>
---
Changes v1 -> v4:
  - Add patch to series.

Changes v4 -> v5:
 - Seperate this patch into it's own patch.

 package/qemu/Config.in.host | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package/qemu/Config.in.host b/package/qemu/Config.in.host
index 78fe54a85c..bbc2aa27c5 100644
--- a/package/qemu/Config.in.host
+++ b/package/qemu/Config.in.host
@@ -6,6 +6,7 @@ config BR2_PACKAGE_HOST_QEMU_ARCH_SUPPORTS
 		BR2_mips64       || BR2_mips64el    || BR2_powerpc      || \
 		BR2_powerpc64    || BR2_powerpc64le || BR2_sh           || \
 		BR2_sparc        || BR2_x86_64
+		depends on !BR2_powerpc_620 && !BR2_powerpc_630 && !BR2_powerpc_970
 
 config BR2_PACKAGE_HOST_QEMU
 	bool "host qemu"
-- 
2.14.3

[Buildroot] [PATCH v5 1/5] qemu-host: remove support for some powerpc processors.

[Yann E. MORIN]

Adma, All,

On 2018-03-18 15:01 -0400, Adam Duskett spake thusly:
> The 620, 630, and 970 are not supported at this time by qemu.
> 
> Signed-off-by: Adam Duskett <aduskett@gmail.com>

Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

Regards,
Yann E. MORIN.

> ---
> Changes v1 -> v4:
>   - Add patch to series.
> 
> Changes v4 -> v5:
>  - Seperate this patch into it's own patch.
> 
>  package/qemu/Config.in.host | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/package/qemu/Config.in.host b/package/qemu/Config.in.host
> index 78fe54a85c..bbc2aa27c5 100644
> --- a/package/qemu/Config.in.host
> +++ b/package/qemu/Config.in.host
> @@ -6,6 +6,7 @@ config BR2_PACKAGE_HOST_QEMU_ARCH_SUPPORTS
>  		BR2_mips64       || BR2_mips64el    || BR2_powerpc      || \
>  		BR2_powerpc64    || BR2_powerpc64le || BR2_sh           || \
>  		BR2_sparc        || BR2_x86_64
> +		depends on !BR2_powerpc_620 && !BR2_powerpc_630 && !BR2_powerpc_970
>  
>  config BR2_PACKAGE_HOST_QEMU
>  	bool "host qemu"
> -- 
> 2.14.3
> 
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH v5 1/5] qemu-host: remove support for some powerpc processors.

[Thomas Petazzoni]

Hello,

On Sun, 18 Mar 2018 15:01:27 -0400, Adam Duskett wrote:
> The 620, 630, and 970 are not supported at this time by qemu.
> 
> Signed-off-by: Adam Duskett <aduskett@gmail.com>
> ---
> Changes v1 -> v4:
>   - Add patch to series.

Applied to master, thanks.

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

[Buildroot] [PATCH v5 2/5] qemu: add qemu_user_opts

[Adam Duskett]

Add a new variable in qemu.mk: QEMU_USER_OPTS. When qemu-$(ARCH) is
called, some architectures require a -cpu flag to be passed, or else a
segfault may occure when building introspection files.
For PowerPC, many of these cpu's need a specific CPU flag to be passed
via the command line.

Signed-off-by: Adam Duskett <aduskett@gmail.com>
---
Changes v1 -> v4:
  - Add patch to series.

Changes v4 -> v5:
 - Change HOST_QEMU_CPU_TUNE to QEMU_USER_OPTS. (Yann)
 - Add $(QEMU_USER_OPTS) to end of QEMU_USER (Yann)

 package/qemu/qemu.mk | 33 ++++++++++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/package/qemu/qemu.mk b/package/qemu/qemu.mk
index 345ef52668..6a0fcabbce 100644
--- a/package/qemu/qemu.mk
+++ b/package/qemu/qemu.mk
@@ -70,6 +70,37 @@ endif
 ifeq ($(HOST_QEMU_ARCH),sh4aeb)
 HOST_QEMU_ARCH = sh4eb
 endif
+
+# Add cpu specific callouts for qemu.
+# In some cases (e.g. ppc) simply being arch specific (apparently) isn't good
+# enough and a PACKAGE_ARCH specific -cpu option is needed 
+# For others (e.g. arm) a -cpu option is not necessary, since the
+# qemu-arm default CPU supports all required architecture levels.
+ifeq ($(BR2_x86_64),y)
+QEMU_USER_OPTS = -cpu Nehalem,check=false
+endif
+
+# PowerPC architecture. Currently, the 620, 630, and 970 are not supported.
+ifeq ($(BR2_powerpc_e5500),y)
+QEMU_USER_OPTS = -cpu e5500
+endif
+
+ifeq ($(BR2_powerpc_e6500),y)
+QEMU_USER_OPTS = -cpu e6500
+endif
+
+ifeq ($(BR2_powerpc_power7),y)
+QEMU_USER_OPTS = -cpu 7400
+endif
+
+ifeq ($(BR2_powerpc64)$(BR2_powerpc_e5500),yy)
+QEMU_USER_OPTS = -cpu e500mc
+endif
+
+ifeq ($(BR2_powerpc64)$(BR2_powerpc_e6500),yy)
+QEMU_USER_OPTS = -cpu e500mc
+endif
+
 HOST_QEMU_SYS_ARCH ?= $(HOST_QEMU_ARCH)
 
 ifeq ($(BR2_PACKAGE_HOST_QEMU_SYSTEM_MODE),y)
@@ -147,7 +178,7 @@ endef
 $(eval $(host-generic-package))
 
 # variable used by other packages
-QEMU_USER = $(HOST_DIR)/bin/qemu-$(HOST_QEMU_ARCH)
+QEMU_USER = $(HOST_DIR)/bin/qemu-$(HOST_QEMU_ARCH) $(QEMU_USER_OPTS)
 
 #-------------------------------------------------------------
 # Target-qemu
-- 
2.14.3

[Buildroot] [PATCH v5 2/5] qemu: add qemu_user_opts

[Yann E. MORIN]

Adam, all,

On 2018-03-18 15:01 -0400, Adam Duskett spake thusly:
> Add a new variable in qemu.mk: QEMU_USER_OPTS. When qemu-$(ARCH) is
> called, some architectures require a -cpu flag to be passed, or else a
> segfault may occure when building introspection files.
> For PowerPC, many of these cpu's need a specific CPU flag to be passed
> via the command line.
> 
> Signed-off-by: Adam Duskett <aduskett@gmail.com>

Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

However, see a little comment below...

> ---
> Changes v1 -> v4:
>   - Add patch to series.
> 
> Changes v4 -> v5:
>  - Change HOST_QEMU_CPU_TUNE to QEMU_USER_OPTS. (Yann)
>  - Add $(QEMU_USER_OPTS) to end of QEMU_USER (Yann)
> 
>  package/qemu/qemu.mk | 33 ++++++++++++++++++++++++++++++++-
>  1 file changed, 32 insertions(+), 1 deletion(-)
> 
> diff --git a/package/qemu/qemu.mk b/package/qemu/qemu.mk
> index 345ef52668..6a0fcabbce 100644
> --- a/package/qemu/qemu.mk
> +++ b/package/qemu/qemu.mk
> @@ -70,6 +70,37 @@ endif
>  ifeq ($(HOST_QEMU_ARCH),sh4aeb)
>  HOST_QEMU_ARCH = sh4eb
>  endif
> +
> +# Add cpu specific callouts for qemu.
> +# In some cases (e.g. ppc) simply being arch specific (apparently) isn't good
> +# enough and a PACKAGE_ARCH specific -cpu option is needed 

What did you meant with "PACKAGE_ARCH"? I guess it's a leftover from the
previous iteration, right?

Just removing it looks like the correct phrasing to me, right?

Regards,
Yann E. MORIN.

> +# For others (e.g. arm) a -cpu option is not necessary, since the
> +# qemu-arm default CPU supports all required architecture levels.
> +ifeq ($(BR2_x86_64),y)
> +QEMU_USER_OPTS = -cpu Nehalem,check=false
> +endif
> +
> +# PowerPC architecture. Currently, the 620, 630, and 970 are not supported.
> +ifeq ($(BR2_powerpc_e5500),y)
> +QEMU_USER_OPTS = -cpu e5500
> +endif
> +
> +ifeq ($(BR2_powerpc_e6500),y)
> +QEMU_USER_OPTS = -cpu e6500
> +endif
> +
> +ifeq ($(BR2_powerpc_power7),y)
> +QEMU_USER_OPTS = -cpu 7400
> +endif
> +
> +ifeq ($(BR2_powerpc64)$(BR2_powerpc_e5500),yy)
> +QEMU_USER_OPTS = -cpu e500mc
> +endif
> +
> +ifeq ($(BR2_powerpc64)$(BR2_powerpc_e6500),yy)
> +QEMU_USER_OPTS = -cpu e500mc
> +endif
> +
>  HOST_QEMU_SYS_ARCH ?= $(HOST_QEMU_ARCH)
>  
>  ifeq ($(BR2_PACKAGE_HOST_QEMU_SYSTEM_MODE),y)
> @@ -147,7 +178,7 @@ endef
>  $(eval $(host-generic-package))
>  
>  # variable used by other packages
> -QEMU_USER = $(HOST_DIR)/bin/qemu-$(HOST_QEMU_ARCH)
> +QEMU_USER = $(HOST_DIR)/bin/qemu-$(HOST_QEMU_ARCH) $(QEMU_USER_OPTS)
>  
>  #-------------------------------------------------------------
>  # Target-qemu
> -- 
> 2.14.3
> 
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH v5 2/5] qemu: add qemu_user_opts

[Adam Duskett]

All;

On Sun, Mar 18, 2018 at 3:18 PM, Yann E. MORIN <yann.morin.1998@free.fr> wrote:
> Adam, all,
>
> On 2018-03-18 15:01 -0400, Adam Duskett spake thusly:
>> Add a new variable in qemu.mk: QEMU_USER_OPTS. When qemu-$(ARCH) is
>> called, some architectures require a -cpu flag to be passed, or else a
>> segfault may occure when building introspection files.
>> For PowerPC, many of these cpu's need a specific CPU flag to be passed
>> via the command line.
>>
>> Signed-off-by: Adam Duskett <aduskett@gmail.com>
>
> Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
>
> However, see a little comment below...
>
>> ---
>> Changes v1 -> v4:
>>   - Add patch to series.
>>
>> Changes v4 -> v5:
>>  - Change HOST_QEMU_CPU_TUNE to QEMU_USER_OPTS. (Yann)
>>  - Add $(QEMU_USER_OPTS) to end of QEMU_USER (Yann)
>>
>>  package/qemu/qemu.mk | 33 ++++++++++++++++++++++++++++++++-
>>  1 file changed, 32 insertions(+), 1 deletion(-)
>>
>> diff --git a/package/qemu/qemu.mk b/package/qemu/qemu.mk
>> index 345ef52668..6a0fcabbce 100644
>> --- a/package/qemu/qemu.mk
>> +++ b/package/qemu/qemu.mk
>> @@ -70,6 +70,37 @@ endif
>>  ifeq ($(HOST_QEMU_ARCH),sh4aeb)
>>  HOST_QEMU_ARCH = sh4eb
>>  endif
>> +
>> +# Add cpu specific callouts for qemu.
>> +# In some cases (e.g. ppc) simply being arch specific (apparently) isn't good
>> +# enough and a PACKAGE_ARCH specific -cpu option is needed
>
> What did you meant with "PACKAGE_ARCH"? I guess it's a leftover from the
> previous iteration, right?
>
> Just removing it looks like the correct phrasing to me, right?
>
Correct, sorry about that!

Adam
> Regards,
> Yann E. MORIN.
>
>> +# For others (e.g. arm) a -cpu option is not necessary, since the
>> +# qemu-arm default CPU supports all required architecture levels.
>> +ifeq ($(BR2_x86_64),y)
>> +QEMU_USER_OPTS = -cpu Nehalem,check=false
>> +endif
>> +
>> +# PowerPC architecture. Currently, the 620, 630, and 970 are not supported.
>> +ifeq ($(BR2_powerpc_e5500),y)
>> +QEMU_USER_OPTS = -cpu e5500
>> +endif
>> +
>> +ifeq ($(BR2_powerpc_e6500),y)
>> +QEMU_USER_OPTS = -cpu e6500
>> +endif
>> +
>> +ifeq ($(BR2_powerpc_power7),y)
>> +QEMU_USER_OPTS = -cpu 7400
>> +endif
>> +
>> +ifeq ($(BR2_powerpc64)$(BR2_powerpc_e5500),yy)
>> +QEMU_USER_OPTS = -cpu e500mc
>> +endif
>> +
>> +ifeq ($(BR2_powerpc64)$(BR2_powerpc_e6500),yy)
>> +QEMU_USER_OPTS = -cpu e500mc
>> +endif
>> +
>>  HOST_QEMU_SYS_ARCH ?= $(HOST_QEMU_ARCH)
>>
>>  ifeq ($(BR2_PACKAGE_HOST_QEMU_SYSTEM_MODE),y)
>> @@ -147,7 +178,7 @@ endef
>>  $(eval $(host-generic-package))
>>
>>  # variable used by other packages
>> -QEMU_USER = $(HOST_DIR)/bin/qemu-$(HOST_QEMU_ARCH)
>> +QEMU_USER = $(HOST_DIR)/bin/qemu-$(HOST_QEMU_ARCH) $(QEMU_USER_OPTS)
>>
>>  #-------------------------------------------------------------
>>  # Target-qemu
>> --
>> 2.14.3
>>
>> _______________________________________________
>> buildroot mailing list
>> buildroot at busybox.net
>> http://lists.busybox.net/mailman/listinfo/buildroot
>
> --
> .-----------------.--------------------.------------------.--------------------.
> |  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
> | +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
> | +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
> | http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
> '------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH v5 3/5] gstreamer1 packages: explicitly disable introspection

[Adam Duskett]

To get GStreamer ready for introspection, we must first explicitly
disable gstreamer1, plugins base and plugins bad from using introspection.
If not, adding the gobject-introspection will result in these packages
failing to build because setting the _GIR_EXTRA_LIBS_PATH variable is required.

The other gstreamer1 packages do not require setting the _GIR_EXTRA_LIBS_PATH
variable.

Signed-off-by: Adam Duskett <aduskett@gmail.com>
---
Changes v1 -> v4:
  - Add patch to series.
  - Change TARGET_MAKE_ENV += GIR_EXTRA_LIBS_PATH to
    PACKAGE_GIR_EXTRA_LIBS_PATH.

Changes v4 -> v5:
  - Change --enable-introspection=no to --disable-introspection (Yann)

 package/gstreamer1/gst1-plugins-bad/gst1-plugins-bad.mk   | 3 ++-
 package/gstreamer1/gst1-plugins-base/gst1-plugins-base.mk | 3 ++-
 package/gstreamer1/gstreamer1/gstreamer1.mk               | 1 +
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/package/gstreamer1/gst1-plugins-bad/gst1-plugins-bad.mk b/package/gstreamer1/gst1-plugins-bad/gst1-plugins-bad.mk
index 83cb94be81..a4adc0e49e 100644
--- a/package/gstreamer1/gst1-plugins-bad/gst1-plugins-bad.mk
+++ b/package/gstreamer1/gst1-plugins-bad/gst1-plugins-bad.mk
@@ -21,7 +21,8 @@ GST1_PLUGINS_BAD_CONF_OPTS = \
 	--disable-winks \
 	--disable-android_media \
 	--disable-apple_media \
-	--disable-acm
+	--disable-acm \
+	--disable-introspection
 
 # Options which require currently unpackaged libraries
 GST1_PLUGINS_BAD_CONF_OPTS += \
diff --git a/package/gstreamer1/gst1-plugins-base/gst1-plugins-base.mk b/package/gstreamer1/gst1-plugins-base/gst1-plugins-base.mk
index 10361ee3c6..2d183ce572 100644
--- a/package/gstreamer1/gst1-plugins-base/gst1-plugins-base.mk
+++ b/package/gstreamer1/gst1-plugins-base/gst1-plugins-base.mk
@@ -14,7 +14,8 @@ GST1_PLUGINS_BASE_LICENSE = LGPL-2.0+, LGPL-2.1+
 # gio_unix_2_0 is only used for tests
 GST1_PLUGINS_BASE_CONF_OPTS = \
 	--disable-examples \
-	--disable-valgrind
+	--disable-valgrind \
+	--disable-introspection
 
 # Options which require currently unpackaged libraries
 GST1_PLUGINS_BASE_CONF_OPTS += \
diff --git a/package/gstreamer1/gstreamer1/gstreamer1.mk b/package/gstreamer1/gstreamer1/gstreamer1.mk
index ea9f29a4f3..b00057a374 100644
--- a/package/gstreamer1/gstreamer1/gstreamer1.mk
+++ b/package/gstreamer1/gstreamer1/gstreamer1.mk
@@ -17,6 +17,7 @@ GSTREAMER1_CONF_OPTS = \
 	--disable-failing-tests \
 	--disable-valgrind \
 	--disable-benchmarks \
+	--disable-introspection \
 	$(if $(BR2_PACKAGE_GSTREAMER1_CHECK),,--disable-check) \
 	$(if $(BR2_PACKAGE_GSTREAMER1_TRACE),,--disable-trace) \
 	$(if $(BR2_PACKAGE_GSTREAMER1_PARSE),,--disable-parse) \
-- 
2.14.3

[Buildroot] [PATCH v5 3/5] gstreamer1 packages: explicitly disable introspection

[Yann E. MORIN]

Adma, All,

On 2018-03-18 15:01 -0400, Adam Duskett spake thusly:
> To get GStreamer ready for introspection, we must first explicitly
> disable gstreamer1, plugins base and plugins bad from using introspection.
> If not, adding the gobject-introspection will result in these packages
> failing to build because setting the _GIR_EXTRA_LIBS_PATH variable is required.
> 
> The other gstreamer1 packages do not require setting the _GIR_EXTRA_LIBS_PATH
> variable.
> 
> Signed-off-by: Adam Duskett <aduskett@gmail.com>

If there are other packages that may support GIR, we can add that option
later on as we discover them.

Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

Regards,
Yann E. MORIN.

> ---
> Changes v1 -> v4:
>   - Add patch to series.
>   - Change TARGET_MAKE_ENV += GIR_EXTRA_LIBS_PATH to
>     PACKAGE_GIR_EXTRA_LIBS_PATH.
> 
> Changes v4 -> v5:
>   - Change --enable-introspection=no to --disable-introspection (Yann)
> 
>  package/gstreamer1/gst1-plugins-bad/gst1-plugins-bad.mk   | 3 ++-
>  package/gstreamer1/gst1-plugins-base/gst1-plugins-base.mk | 3 ++-
>  package/gstreamer1/gstreamer1/gstreamer1.mk               | 1 +
>  3 files changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/package/gstreamer1/gst1-plugins-bad/gst1-plugins-bad.mk b/package/gstreamer1/gst1-plugins-bad/gst1-plugins-bad.mk
> index 83cb94be81..a4adc0e49e 100644
> --- a/package/gstreamer1/gst1-plugins-bad/gst1-plugins-bad.mk
> +++ b/package/gstreamer1/gst1-plugins-bad/gst1-plugins-bad.mk
> @@ -21,7 +21,8 @@ GST1_PLUGINS_BAD_CONF_OPTS = \
>  	--disable-winks \
>  	--disable-android_media \
>  	--disable-apple_media \
> -	--disable-acm
> +	--disable-acm \
> +	--disable-introspection
>  
>  # Options which require currently unpackaged libraries
>  GST1_PLUGINS_BAD_CONF_OPTS += \
> diff --git a/package/gstreamer1/gst1-plugins-base/gst1-plugins-base.mk b/package/gstreamer1/gst1-plugins-base/gst1-plugins-base.mk
> index 10361ee3c6..2d183ce572 100644
> --- a/package/gstreamer1/gst1-plugins-base/gst1-plugins-base.mk
> +++ b/package/gstreamer1/gst1-plugins-base/gst1-plugins-base.mk
> @@ -14,7 +14,8 @@ GST1_PLUGINS_BASE_LICENSE = LGPL-2.0+, LGPL-2.1+
>  # gio_unix_2_0 is only used for tests
>  GST1_PLUGINS_BASE_CONF_OPTS = \
>  	--disable-examples \
> -	--disable-valgrind
> +	--disable-valgrind \
> +	--disable-introspection
>  
>  # Options which require currently unpackaged libraries
>  GST1_PLUGINS_BASE_CONF_OPTS += \
> diff --git a/package/gstreamer1/gstreamer1/gstreamer1.mk b/package/gstreamer1/gstreamer1/gstreamer1.mk
> index ea9f29a4f3..b00057a374 100644
> --- a/package/gstreamer1/gstreamer1/gstreamer1.mk
> +++ b/package/gstreamer1/gstreamer1/gstreamer1.mk
> @@ -17,6 +17,7 @@ GSTREAMER1_CONF_OPTS = \
>  	--disable-failing-tests \
>  	--disable-valgrind \
>  	--disable-benchmarks \
> +	--disable-introspection \
>  	$(if $(BR2_PACKAGE_GSTREAMER1_CHECK),,--disable-check) \
>  	$(if $(BR2_PACKAGE_GSTREAMER1_TRACE),,--disable-trace) \
>  	$(if $(BR2_PACKAGE_GSTREAMER1_PARSE),,--disable-parse) \
> -- 
> 2.14.3
> 
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH v5 1/1] gobject-introspection: new package

[Adam Duskett]

GObject introspection is a middleware layer between C
libraries (using GObject) and language bindings. The C library
can be scanned at compile time and generate a metadata file,
in addition to the actual native C library. Then at runtime,
language bindings can read this metadata and automatically
provide bindings to call into the C library.

There's an XML format called GIR used by GObject-Introspection.
The purpose of it is to provide a standard structure to access the
complete available API that a library or other unit of code exports.
It is meant to be language agnostic using namespaces to separate
core, language or library specific functionality.

Cross-compiling gobject-introspection is not an easy task. The main
issue is that in the process of creating the XML files,
gobject-introspection must first run and scan the binary, which, if the
binary is cross-compiled, would not typically be possible from the host
system.

Because of this limitation, several wrappers are used to call instead
first out qemu which will then run the native scanner to create the
binaries.

There are eight total patches and four different wrapper files needed
to successfully cross-compile and run this package, many of them are
from open-embedded, but two of them are of my own doing.

1) Revert a previous, incomplete attempt at adding cross-compiling
    support.

2) Add support for the various wrappers. (See patch for details.)

3) Add an option to use a binary wrapper; this patch will force
   giscanner to use a wrapper executable to run binaries it's producing,
   instead of attempting to run them from the host.

4) Add an option to use an LDD wrapper, again, useful for
    cross-compiled environments.

5) Overwrite python includes during the initial configure stage.

6) Add a --lib-dirs-envar option to pass to giscanner.
   (See patch for details.)

7) Add rpath-links to ccompiler: when passing the
    PACKAGE_GIR_EXTRA_LIBS_PATH to the ccompiler.py script,
    ccompiler.py needs to add -Wl,-rpath-link to the environment for the
    package to correctly link against the passed on paths.

8) Add Float128 patch: Newer versions of the GNU C library started
    exposing `_Float128` in the headers, which means we need to add
    this type to the known tokens, to avoid warnings.

Signed-off-by: Adam Duskett <aduskett@gmail.com>
---
Changes v1 -> v2:
  - Fixed wrappers
  - Added 0007-giscanner-add-a-lib-dirs-envvar-option.patch
  - Added 0008-add-Float128.patch

Changes v2 -> v3:
  - Removed Linux kernel dependency (baruch)
  - Changed $(LINUX_VERSION) to $(BR2_TOOLCHAIN_HEADERS_AT_LEAST) (baruch)
  - Changed @LINUX_VERSION@ in g-ir-scanner-qemuwrapper.in to
    @TOOLCHAIN_HEADERS_VERSION@ to match the above variable change.
  - Added BR2_PACKAGE_GOBJECT_INTROSPECTION_ARCH_SUPPORTS_TARGET in Config.in
    with only BR2_arm selected for now.
  - Removed BR2_PACKAGE_HOST_QEMU_ARCH_SUPPORTS in favor of the above change.
  - Added two new lines in the base Makefile which removes any remaining .gir
    or .rnc files from the target filing system, as these are not needed for
    runtime, only compile time.

Changes v3 -> v4:
  - Removed RFC tag.
  - Added 0007-Add-rpath-links-to-ccompiler.patch
  - Removed config-paths-with-PKG_CONFIG_SYSROOT_DIR-.patch as it is not
    Yocto specific.
  - Added the _GIR_EXTRA_LIBS_PATH to pkg-autotools.mk. This allows package
    specific Gir libraries to be passed on to g-ir-scanner-qemuwrapper.
  - Fixed a typo in g-ir-scanner-qemuwrapper.in.
  - Remove BR2_PACKAGE_GOBJECT_INTROSPECTION_ARCH_SUPPORTS_TARGET in favor of
    BR2_PACKAGE_HOST_QEMU_ARCH_SUPPORTS

Changes v4 -> v5:
  - Added a more detailed commit message (Yann)
  - Removed  $HOST_DIR/bin/qemu- at HOST_QEMU_ARCH@ @HOST_QEMU_CPU_TUNE@
    in favor of @QEMU_USER@ (Thanks Yann)

 DEVELOPERS                                         |   1 +
 Makefile                                           |   2 +
 package/Config.in                                  |   1 +
 ...ncomplete-upstream-attempt-at-cross-compi.patch |  50 +++
 ...c-add-host-gi-gi-cross-wrapper-gi-ldd-wra.patch | 203 ++++++++++++
 ...3-giscanner-add-use-binary-wrapper-option.patch |  52 +++
 ...04-giscanner-add-a-use-ldd-wrapper-option.patch |  48 +++
 .../0005-add-PYTHON_INCLUDES-override.patch        |  39 +++
 ...06-giscanner-add-a-lib-dirs-envvar-option.patch |  73 +++++
 .../0007-Add-rpath-links-to-ccompiler.patch        |  29 ++
 .../gobject-introspection/0008-add-Float128.patch  |  28 ++
 package/gobject-introspection/Config.in            |  30 ++
 package/gobject-introspection/cross-ldd            | 362 +++++++++++++++++++++
 package/gobject-introspection/g-ir-compiler.in     |   2 +
 .../g-ir-scanner-lddwrapper.in                     |   2 +
 .../g-ir-scanner-qemuwrapper.in                    |  10 +
 package/gobject-introspection/g-ir-scanner.in      |   3 +
 .../gobject-introspection.hash                     |   4 +
 .../gobject-introspection/gobject-introspection.mk |  89 +++++
 package/pkg-autotools.mk                           |   3 +
 20 files changed, 1031 insertions(+)
 create mode 100644 package/gobject-introspection/0001-Revert-an-incomplete-upstream-attempt-at-cross-compi.patch
 create mode 100644 package/gobject-introspection/0002-configure.ac-add-host-gi-gi-cross-wrapper-gi-ldd-wra.patch
 create mode 100644 package/gobject-introspection/0003-giscanner-add-use-binary-wrapper-option.patch
 create mode 100644 package/gobject-introspection/0004-giscanner-add-a-use-ldd-wrapper-option.patch
 create mode 100644 package/gobject-introspection/0005-add-PYTHON_INCLUDES-override.patch
 create mode 100644 package/gobject-introspection/0006-giscanner-add-a-lib-dirs-envvar-option.patch
 create mode 100644 package/gobject-introspection/0007-Add-rpath-links-to-ccompiler.patch
 create mode 100644 package/gobject-introspection/0008-add-Float128.patch
 create mode 100644 package/gobject-introspection/Config.in
 create mode 100644 package/gobject-introspection/cross-ldd
 create mode 100644 package/gobject-introspection/g-ir-compiler.in
 create mode 100644 package/gobject-introspection/g-ir-scanner-lddwrapper.in
 create mode 100644 package/gobject-introspection/g-ir-scanner-qemuwrapper.in
 create mode 100644 package/gobject-introspection/g-ir-scanner.in
 create mode 100644 package/gobject-introspection/gobject-introspection.hash
 create mode 100644 package/gobject-introspection/gobject-introspection.mk

diff --git a/DEVELOPERS b/DEVELOPERS
index 3df820e712..46ea8230b6 100644
--- a/DEVELOPERS
+++ b/DEVELOPERS
@@ -34,6 +34,7 @@ F:	package/audit/
 F:	package/busybox/
 F:	package/checkpolicy/
 F:	package/cppdb/
+F:	package/gobject-introspection/
 F:	package/gstreamer1/gstreamer1/
 F:	package/gstreamer1/gstreamer1-mm/
 F:	package/gstreamer1/gst1-plugins-bad/
diff --git a/Makefile b/Makefile
index 1b34818fc8..6a507d050a 100644
--- a/Makefile
+++ b/Makefile
@@ -704,6 +704,8 @@ target-finalize: $(PACKAGES)
 		$(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
 		$(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake
 	find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
+	find $(TARGET_DIR)/usr/share/ -name '*.gir' -print0 | xargs -0 rm -f
+	find $(TARGET_DIR)/usr/share/ -name '*.rnc' -print0 | xargs -0 rm -f
 	find $(TARGET_DIR)/lib/ $(TARGET_DIR)/usr/lib/ $(TARGET_DIR)/usr/libexec/ \
 		\( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
 ifneq ($(BR2_PACKAGE_GDB),y)
diff --git a/package/Config.in b/package/Config.in
index 449ffcc47b..63752ed04c 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -1486,6 +1486,7 @@ menu "Other"
 	source "package/glibmm/Config.in"
 	source "package/glm/Config.in"
 	source "package/gmp/Config.in"
+	source "package/gobject-introspection/Config.in"
 	source "package/gsl/Config.in"
 	source "package/gtest/Config.in"
 	source "package/jemalloc/Config.in"
diff --git a/package/gobject-introspection/0001-Revert-an-incomplete-upstream-attempt-at-cross-compi.patch b/package/gobject-introspection/0001-Revert-an-incomplete-upstream-attempt-at-cross-compi.patch
new file mode 100644
index 0000000000..86ba666d24
--- /dev/null
+++ b/package/gobject-introspection/0001-Revert-an-incomplete-upstream-attempt-at-cross-compi.patch
@@ -0,0 +1,50 @@
+From 3a9d1e5ee0aae56fafec0beba2014c19e4ff310c Mon Sep 17 00:00:00 2001
+From: Alexander Kanavin <alex.kanavin@gmail.com>
+Date: Wed, 23 Mar 2016 17:07:28 +0200
+Subject: [PATCH] Revert an incomplete upstream attempt at cross-compile support
+
+Upstream-Status: Pending
+Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
+Signed-off-by: Adam Duskett <aduskett@gmail.com>
+---
+ common.mk                | 4 ----
+ giscanner/gdumpparser.py | 6 ------
+ 2 files changed, 10 deletions(-)
+
+diff --git a/common.mk b/common.mk
+index b778f7a..e26c637 100644
+--- a/common.mk
++++ b/common.mk
+@@ -24,12 +24,8 @@ INTROSPECTION_SCANNER_ARGS = \
+     --add-include-path=$(top_builddir) \
+     --add-include-path=$(top_builddir)/gir
+ 
+-# GI_CROSS_LAUNCHER is the command to use for executing g-ir-compiler.
+-# Normally will be undefined but can be set (e.g. to wine or qemu)
+-# when cross-compiling
+ INTROSPECTION_COMPILER = \
+     env PATH=".libs:$(PATH)" \
+-        $(GI_CROSS_LAUNCHER) \
+         $(top_builddir)/g-ir-compiler$(EXEEXT)
+ 
+ INTROSPECTION_COMPILER_ARGS = \
+diff --git a/giscanner/gdumpparser.py b/giscanner/gdumpparser.py
+index 1134f33..9bdc2bc 100644
+--- a/giscanner/gdumpparser.py
++++ b/giscanner/gdumpparser.py
+@@ -162,12 +162,6 @@ blob containing data gleaned from GObject's primitive introspection."""
+         out_path = os.path.join(self._binary.tmpdir, 'dump.xml')
+ 
+         args = []
+-
+-        # Prepend the launcher command and arguments, if defined
+-        launcher = os.environ.get('GI_CROSS_LAUNCHER')
+-        if launcher:
+-            args.extend(launcher.split())
+-
+         args.extend(self._binary.args)
+         args.append('--introspect-dump=%s,%s' % (in_path, out_path))
+ 
+-- 
+2.7.0
+
diff --git a/package/gobject-introspection/0002-configure.ac-add-host-gi-gi-cross-wrapper-gi-ldd-wra.patch b/package/gobject-introspection/0002-configure.ac-add-host-gi-gi-cross-wrapper-gi-ldd-wra.patch
new file mode 100644
index 0000000000..ef57c67de7
--- /dev/null
+++ b/package/gobject-introspection/0002-configure.ac-add-host-gi-gi-cross-wrapper-gi-ldd-wra.patch
@@ -0,0 +1,203 @@
+From b1503fe2693d602b3e24e4b832dc0934960d5d22 Mon Sep 17 00:00:00 2001
+From: Alexander Kanavin <alex.kanavin@gmail.com>
+Date: Mon, 19 Oct 2015 18:29:21 +0300
+Subject: [PATCH] configure.ac: add host-gi, gi-cross-wrapper, gi-ldd-wrapper and introspection-data options
+
+With the first option, gobject-introspection tools (g-ir-doc-tool and g-ir-scanner)
+that are already installed in the host system will be used for building the source tree.
+
+With the second option, g-ir-scanner will be instructed to use an executable
+wrapper to run binaries it's producing, and g-ir-compiler will be run
+through the same wrapper (host system's g-ir-compiler cannot be used because
+it's producing architecture-specific output).
+
+With the third option, giscanner will be instructed to use a special ldd
+command instead of system's ldd (which does not work when the binary to inspect
+is compiled for a different architecture).
+
+With the fourth option, it is possible to disable building of introspection data
+(.gir and .typelib files), which may be difficult or impossible in cross-compilation
+environments, because of lack of emulation (or native hardware) for the target architecture
+on which the target binaries can be run.
+
+These options are useful when cross-compiling for a different target architecture.
+
+Upstream-Status: Pending [review on oe-core list]
+Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
+Signed-off-by: Adam Duskett <aduskett@gmail.com>
+---
+ Makefile.am       |  2 ++
+ common.mk         | 39 +++++++++++++++++++++++++++++++++++++++
+ configure.ac      | 42 ++++++++++++++++++++++++++++++++++++++++++
+ tests/Makefile.am |  5 ++++-
+ 4 files changed, 87 insertions(+), 1 deletion(-)
+
+diff --git a/Makefile.am b/Makefile.am
+index b080a89..ce8d29b 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -21,7 +21,9 @@ include Makefile-cmph.am
+ include Makefile-girepository.am
+ include Makefile-giscanner.am
+ include Makefile-examples.am
++if BUILD_INTROSPECTION_DATA
+ include Makefile-gir.am
++endif
+ include Makefile-tools.am
+ include Makefile-msvcproj.am
+ 
+diff --git a/common.mk b/common.mk
+index e26c637..9f3a65f 100644
+--- a/common.mk
++++ b/common.mk
+@@ -6,6 +6,15 @@
+ # module itself.
+ #
+ 
++if USE_HOST_GI
++INTROSPECTION_SCANNER = \
++    env PATH="$(PATH)" \
++        LPATH=.libs \
++        CC="$(CC)" \
++        PYTHONPATH=$(top_builddir):$(top_srcdir) \
++        UNINSTALLED_INTROSPECTION_BUILDDIR=$(top_builddir) \
++        g-ir-scanner
++else
+ INTROSPECTION_SCANNER = \
+     env PATH=".libs:$(PATH)" \
+         LPATH=.libs \
+@@ -14,9 +23,24 @@ INTROSPECTION_SCANNER = \
+         UNINSTALLED_INTROSPECTION_SRCDIR=$(top_srcdir) \
+         UNINSTALLED_INTROSPECTION_BUILDDIR=$(top_builddir) \
+         $(top_builddir)/g-ir-scanner
++endif
++
++if USE_CROSS_WRAPPER
++CROSS_WRAPPER_ARG = --use-binary-wrapper=$(GI_CROSS_WRAPPER)
++else
++CROSS_WRAPPER_ARG =
++endif
++
++if USE_LDD_WRAPPER
++LDD_WRAPPER_ARG = --use-ldd-wrapper=$(GI_LDD_WRAPPER)
++else
++LDD_WRAPPER_ARG =
++endif
+ 
+ INTROSPECTION_SCANNER_ARGS = \
+     --verbose \
++    $(CROSS_WRAPPER_ARG) \
++    $(LDD_WRAPPER_ARG) \
+     -I$(top_srcdir) \
+     --add-include-path=$(srcdir) \
+     --add-include-path=$(top_srcdir)/gir \
+@@ -24,9 +48,15 @@ INTROSPECTION_SCANNER_ARGS = \
+     --add-include-path=$(top_builddir) \
+     --add-include-path=$(top_builddir)/gir
+ 
++if USE_CROSS_WRAPPER
++INTROSPECTION_COMPILER = \
++    env PATH=".libs:$(PATH)" \
++        $(GI_CROSS_WRAPPER) $(top_builddir)/.libs/g-ir-compiler$(EXEEXT)
++else
+ INTROSPECTION_COMPILER = \
+     env PATH=".libs:$(PATH)" \
+         $(top_builddir)/g-ir-compiler$(EXEEXT)
++endif
+ 
+ INTROSPECTION_COMPILER_ARGS = \
+     --includedir=$(srcdir) \
+@@ -35,6 +65,14 @@ INTROSPECTION_COMPILER_ARGS = \
+     --includedir=$(top_builddir) \
+     --includedir=$(top_builddir)/gir
+ 
++if USE_HOST_GI
++INTROSPECTION_DOCTOOL = \
++    env PATH="$(PATH)" \
++        LPATH=.libs \
++        PYTHONPATH=$(top_builddir):$(top_srcdir) \
++        UNINSTALLED_INTROSPECTION_BUILDDIR=$(top_builddir) \
++        g-ir-doc-tool
++else
+ INTROSPECTION_DOCTOOL = \
+     env PATH=".libs:$(PATH)" \
+         LPATH=.libs \
+@@ -42,6 +80,7 @@ INTROSPECTION_DOCTOOL = \
+         UNINSTALLED_INTROSPECTION_SRCDIR=$(top_srcdir) \
+         UNINSTALLED_INTROSPECTION_BUILDDIR=$(top_builddir) \
+         $(top_builddir)/g-ir-doc-tool
++endif
+ 
+ INTROSPECTION_DOCTOOL_ARGS = \
+     --add-include-path=$(srcdir) \
+diff --git a/configure.ac b/configure.ac
+index 6c91fa5..21340a5 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -360,6 +360,48 @@ fi
+ 
+ AC_SUBST(EXTRA_LINK_FLAGS)
+ 
++AC_ARG_ENABLE([host-gi],
++[AS_HELP_STRING([--enable-host-gi],[Use gobject introspection tools installed in the host system (useful when cross-compiling)])],
++[case "${enableval}" in
++  yes) host_gi=true ;;
++  no)  host_gi=false ;;
++  *) AC_MSG_ERROR([bad value ${enableval} for --enable-host-gi]) ;;
++esac],[host_gi=false])
++AM_CONDITIONAL([USE_HOST_GI], [test x$host_gi = xtrue])
++
++AC_ARG_ENABLE([gi-cross-wrapper],
++[AS_HELP_STRING([--enable-gi-cross-wrapper=path],[Use a wrapper to run gicompiler and binaries produced by giscanner (useful when cross-compiling)])],
++[
++GI_CROSS_WRAPPER="${enableval}"
++use_wrapper=true
++],[
++GI_CROSS_WRAPPER=""
++use_wrapper=false
++])
++AC_SUBST(GI_CROSS_WRAPPER)
++AM_CONDITIONAL([USE_CROSS_WRAPPER], [test x$use_wrapper = xtrue])
++
++AC_ARG_ENABLE([gi-ldd-wrapper],
++[AS_HELP_STRING([--enable-gi-ldd-wrapper=path],[Use a ldd wrapper instead of system's ldd command in giscanner (useful when cross-compiling)])],
++[
++GI_LDD_WRAPPER="${enableval}"
++use_ldd_wrapper=true
++],[
++GI_LDD_WRAPPER=""
++use_ldd_wrapper=false
++])
++AC_SUBST(GI_LDD_WRAPPER)
++AM_CONDITIONAL([USE_LDD_WRAPPER], [test x$use_ldd_wrapper = xtrue])
++
++AC_ARG_ENABLE([introspection-data],
++[AS_HELP_STRING([--enable-introspection-data],[Build introspection data (.gir and .typelib files) in addition to library and tools])],
++[case "${enableval}" in
++  yes) introspection_data=true ;;
++  no)  introspection_data=false ;;
++  *) AC_MSG_ERROR([bad value ${enableval} for --enable-introspection-data]) ;;
++esac],[introspection_data=true])
++AM_CONDITIONAL([BUILD_INTROSPECTION_DATA], [test x$introspection_data = xtrue])
++
+ AC_CONFIG_FILES([
+ Makefile
+ tests/Makefile
+diff --git a/tests/Makefile.am b/tests/Makefile.am
+index bdd0fa7..75dd3c9 100644
+--- a/tests/Makefile.am
++++ b/tests/Makefile.am
+@@ -1,6 +1,9 @@
+ include $(top_srcdir)/common.mk
+ 
+-SUBDIRS = . scanner repository offsets warn
++SUBDIRS = . scanner repository warn
++if BUILD_INTROSPECTION_DATA
++SUBDIRS += offsets
++endif
+ 
+ EXTRA_DIST=
+ BUILT_SOURCES=
+-- 
+2.7.0
+
diff --git a/package/gobject-introspection/0003-giscanner-add-use-binary-wrapper-option.patch b/package/gobject-introspection/0003-giscanner-add-use-binary-wrapper-option.patch
new file mode 100644
index 0000000000..0fd2299f98
--- /dev/null
+++ b/package/gobject-introspection/0003-giscanner-add-use-binary-wrapper-option.patch
@@ -0,0 +1,52 @@
+From 704b888d0abfb01067352c40156f49f655691c7c Mon Sep 17 00:00:00 2001
+From: Alexander Kanavin <alex.kanavin@gmail.com>
+Date: Mon, 19 Oct 2015 18:26:40 +0300
+Subject: [PATCH] giscanner: add --use-binary-wrapper option
+
+With this option, giscanner will use a wrapper executable to run
+binaries it's producing, instead of running them directly. This
+is useful when binaries are cross-compiled and cannot be run directly,
+but they can be run using for example QEMU emulation.
+
+Upstream-Status: Pending [review on oe-core list]
+Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
+Signed-off-by: Adam Duskett <aduskett@gmail.com>
+---
+ giscanner/scannermain.py | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+diff --git a/giscanner/scannermain.py b/giscanner/scannermain.py
+index 633496f..d684cd0 100755
+--- a/giscanner/scannermain.py
++++ b/giscanner/scannermain.py
+@@ -124,6 +124,9 @@ def _get_option_parser():
+     parser.add_option("", "--program",
+                       action="store", dest="program", default=None,
+                       help="program to execute")
++    parser.add_option("", "--use-binary-wrapper",
++                      action="store", dest="wrapper", default=None,
++                      help="wrapper to use for running programs (useful when cross-compiling)")
+     parser.add_option("", "--program-arg",
+                       action="append", dest="program_args", default=[],
+                       help="extra arguments to program")
+@@ -419,6 +422,17 @@ def create_binary(transformer, options, args):
+                                               gdump_parser.get_error_quark_functions())
+ 
+     shlibs = resolve_shlibs(options, binary, options.libraries)
++    if options.wrapper:
++        # The wrapper needs the binary itself, not the libtool wrapper script,
++        # so we check if libtool has sneaked the binary into .libs subdirectory
++        # and adjust the path accordingly
++        import os.path
++        dir_name, binary_name  = os.path.split(binary.args[0])
++        libtool_binary = os.path.join(dir_name, '.libs', binary_name)
++        if os.path.exists(libtool_binary):
++            binary.args[0] = libtool_binary
++	# Then prepend the wrapper to the command line to execute
++        binary.args = [options.wrapper] + binary.args
+     gdump_parser.set_introspection_binary(binary)
+     gdump_parser.parse()
+     return shlibs
+-- 
+2.7.0
+
diff --git a/package/gobject-introspection/0004-giscanner-add-a-use-ldd-wrapper-option.patch b/package/gobject-introspection/0004-giscanner-add-a-use-ldd-wrapper-option.patch
new file mode 100644
index 0000000000..97880ef51d
--- /dev/null
+++ b/package/gobject-introspection/0004-giscanner-add-a-use-ldd-wrapper-option.patch
@@ -0,0 +1,48 @@
+From d4ad57fd4a32c4f0d2f0522a3090ef940746431b Mon Sep 17 00:00:00 2001
+From: Alexander Kanavin <alex.kanavin@gmail.com>
+Date: Fri, 30 Oct 2015 16:28:46 +0200
+Subject: [PATCH] giscanner: add a --use-ldd-wrapper option
+
+This is useful in cross-compile environments where system's ldd
+command does not work on binaries built for a different architecture
+
+Upstream-Status: Pending [review in oe-core]
+Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
+Signed-off-by: Adam Duskett <aduskett@gmail.com>
+---
+ giscanner/scannermain.py | 3 +++
+ giscanner/shlibs.py      | 4 +++-
+ 2 files changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/giscanner/scannermain.py b/giscanner/scannermain.py
+index d684cd0..1b3b369 100755
+--- a/giscanner/scannermain.py
++++ b/giscanner/scannermain.py
+@@ -127,6 +127,9 @@ def _get_option_parser():
+     parser.add_option("", "--use-binary-wrapper",
+                       action="store", dest="wrapper", default=None,
+                       help="wrapper to use for running programs (useful when cross-compiling)")
++    parser.add_option("", "--use-ldd-wrapper",
++                      action="store", dest="ldd_wrapper", default=None,
++                      help="wrapper to use instead of ldd (useful when cross-compiling)")
+     parser.add_option("", "--program-arg",
+                       action="append", dest="program_args", default=[],
+                       help="extra arguments to program")
+diff --git a/giscanner/shlibs.py b/giscanner/shlibs.py
+index c93d20c..c5b5942 100644
+--- a/giscanner/shlibs.py
++++ b/giscanner/shlibs.py
+@@ -105,7 +105,9 @@ def _resolve_non_libtool(options, binary, libraries):
+             args.extend(libtool)
+             args.append('--mode=execute')
+         platform_system = platform.system()
+-        if platform_system == 'Darwin':
++        if options.ldd_wrapper:
++            args.extend([options.ldd_wrapper, binary.args[0]])
++        elif platform_system == 'Darwin':
+             args.extend(['otool', '-L', binary.args[0]])
+         else:
+             args.extend(['ldd', binary.args[0]])
+-- 
+2.7.0
+
diff --git a/package/gobject-introspection/0005-add-PYTHON_INCLUDES-override.patch b/package/gobject-introspection/0005-add-PYTHON_INCLUDES-override.patch
new file mode 100644
index 0000000000..5539b467a9
--- /dev/null
+++ b/package/gobject-introspection/0005-add-PYTHON_INCLUDES-override.patch
@@ -0,0 +1,39 @@
+From 08ee7e704d3ebbb783e26768074a5969d6843204 Mon Sep 17 00:00:00 2001
+From: Adam Duskett <Adamduskett@outlook.com>
+Date: Wed, 18 Oct 2017 17:31:19 -0400
+Subject: [PATCH] add PYTHON_INCLUDES override
+
+As the configure script mixes up host/target python. Equivalent to the
+similar code in dbus-python.
+
+Signed-off-by: Adam Duskett <Adamduskett@outlook.com>
+---
+ m4/python.m4 | 12 +++++++++++-
+ 1 file changed, 11 insertions(+), 1 deletion(-)
+
+diff --git a/m4/python.m4 b/m4/python.m4
+index ed5559d..9853263 100644
+--- a/m4/python.m4
++++ b/m4/python.m4
+@@ -43,7 +43,17 @@ AC_DEFUN([AM_CHECK_PYTHON_HEADERS],
+ [AC_REQUIRE([AM_PATH_PYTHON])
+ AC_MSG_CHECKING(for headers required to compile python extensions)
+ dnl deduce PYTHON_INCLUDES
+-PYTHON_INCLUDES=`$PYTHON-config --includes`
++if test "${PYTHON_INCLUDES+set}" = set; then
++  AC_MSG_NOTICE([PYTHON_INCLUDES overridden to: $PYTHON_INCLUDES])
++else
++  if test -x "$PYTHON_CONFIG"; then
++    PYTHON_INCLUDES=`$PYTHON_CONFIG --includes 2>/dev/null`
++  else
++    PYTHON_INCLUDES=`$PYTHON -c "import distutils.sysconfig, sys; sys.stdout.write(distutils.sysconfig.get_python_inc(True))"`
++    PYTHON_INCLUDES="-I$PYTHON_INCLUDES"
++  fi
++fi
++
+ AC_SUBST(PYTHON_INCLUDES)
+ dnl check if the headers exist:
+ save_CPPFLAGS="$CPPFLAGS"
+-- 
+2.13.6
+
diff --git a/package/gobject-introspection/0006-giscanner-add-a-lib-dirs-envvar-option.patch b/package/gobject-introspection/0006-giscanner-add-a-lib-dirs-envvar-option.patch
new file mode 100644
index 0000000000..4ec527dcc0
--- /dev/null
+++ b/package/gobject-introspection/0006-giscanner-add-a-lib-dirs-envvar-option.patch
@@ -0,0 +1,73 @@
+From e48f1e18f5ea41656f0ba10fe61d69d2604b0064 Mon Sep 17 00:00:00 2001
+From: Alexander Kanavin <alex.kanavin@gmail.com>
+Date: Wed, 3 Jan 2018 17:02:01 +0200
+Subject: [PATCH] giscanner: add a --lib-dirs-envvar option
+
+By default LD_LIBRARY_PATH is set to the list of target library paths;
+this breaks down in cross-compilation environment, as we need to run a
+native emulation wrapper rather than the target binary itself. This patch
+allows exporting those paths to a different environment variable
+which can be picked up and used by the wrapper.
+
+Upstream-Status: Pending
+Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
+
+---
+ giscanner/ccompiler.py   | 4 ++--
+ giscanner/dumper.py      | 3 ++-
+ giscanner/scannermain.py | 3 +++
+ 3 files changed, 7 insertions(+), 3 deletions(-)
+
+diff --git a/giscanner/ccompiler.py b/giscanner/ccompiler.py
+index 29de0ee..928eae8 100644
+--- a/giscanner/ccompiler.py
++++ b/giscanner/ccompiler.py
+@@ -109,7 +109,7 @@ class CCompiler(object):
+ 
+             self._cflags_no_deprecation_warnings = "-Wno-deprecated-declarations"
+ 
+-    def get_internal_link_flags(self, args, libtool, libraries, extra_libraries, libpaths):
++    def get_internal_link_flags(self, args, libtool, libraries, extra_libraries, libpaths, lib_dirs_envvar):
+         # An "internal" link is where the library to be introspected
+         # is being built in the current directory.
+ 
+@@ -119,7 +119,7 @@ class CCompiler(object):
+         if self.check_is_msvc():
+             runtime_path_envvar = ['LIB', 'PATH']
+         else:
+-            runtime_path_envvar = ['LD_LIBRARY_PATH']
++            runtime_path_envvar = ['LD_LIBRARY_PATH'] if not lib_dirs_envvar else [lib_dirs_envvar]
+             # Search the current directory first
+             # (This flag is not supported nor needed for Visual C++)
+             args.append('-L.')
+diff --git a/giscanner/dumper.py b/giscanner/dumper.py
+index 7f77bd2..db96df6 100644
+--- a/giscanner/dumper.py
++++ b/giscanner/dumper.py
+@@ -259,7 +259,8 @@ class DumpCompiler(object):
+                                                    libtool,
+                                                    self._options.libraries,
+                                                    self._options.extra_libraries,
+-                                                   self._options.library_paths)
++                                                   self._options.library_paths,
++                                                   self._options.lib_dirs_envvar)
+             args.extend(pkg_config_libs)
+ 
+         else:
+diff --git a/giscanner/scannermain.py b/giscanner/scannermain.py
+index 38a45c1..b603850 100755
+--- a/giscanner/scannermain.py
++++ b/giscanner/scannermain.py
+@@ -130,6 +130,9 @@ def _get_option_parser():
+     parser.add_option("", "--use-ldd-wrapper",
+                       action="store", dest="ldd_wrapper", default=None,
+                       help="wrapper to use instead of ldd (useful when cross-compiling)")
++    parser.add_option("", "--lib-dirs-envvar",
++                      action="store", dest="lib_dirs_envvar", default=None,
++                      help="environment variable to write a list of library directories to (for running the transient binary), instead of standard LD_LIBRARY_PATH")
+     parser.add_option("", "--program-arg",
+                       action="append", dest="program_args", default=[],
+                       help="extra arguments to program")
+-- 
+2.15.1
+
diff --git a/package/gobject-introspection/0007-Add-rpath-links-to-ccompiler.patch b/package/gobject-introspection/0007-Add-rpath-links-to-ccompiler.patch
new file mode 100644
index 0000000000..02fcdbeb25
--- /dev/null
+++ b/package/gobject-introspection/0007-Add-rpath-links-to-ccompiler.patch
@@ -0,0 +1,29 @@
+From 72a427bc50daee8f1ded0e9221e53dbbf2a80f08 Mon Sep 17 00:00:00 2001
+From: Adam Duskett <aduskett@gmail.com>
+Date: Wed, 14 Mar 2018 12:07:10 -0400
+Subject: [PATCH] Add rpath links to ccompiler
+
+This patch allows gobject-introspection to process extra paths passed to the
+compiler via the GIR_EXTRA_LIBS_PATH variable.
+
+Signed-off-by: Adam Duskett <aduskett@gmail.com>
+---
+ giscanner/ccompiler.py | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/giscanner/ccompiler.py b/giscanner/ccompiler.py
+index a8bd5b1..51bb9bc 100644
+--- a/giscanner/ccompiler.py
++++ b/giscanner/ccompiler.py
+@@ -163,6 +163,8 @@ class CCompiler(object):
+ 
+         for envvar in runtime_path_envvar:
+             if envvar in os.environ:
++                for envvar_path in os.environ[envvar].split(':'):
++                    args.append("-Wl,-rpath-link," + envvar_path)
+                 os.environ[envvar] = \
+                     os.pathsep.join(runtime_paths + [os.environ[envvar]])
+             else:
+-- 
+2.14.3
+
diff --git a/package/gobject-introspection/0008-add-Float128.patch b/package/gobject-introspection/0008-add-Float128.patch
new file mode 100644
index 0000000000..661affda34
--- /dev/null
+++ b/package/gobject-introspection/0008-add-Float128.patch
@@ -0,0 +1,28 @@
+scanner: Add _Float128
+
+The ISO/IEC TS 18661-3:2015 standard added new floating point types to
+the C standard.
+
+Newer versions of the GNU C library started exposing `_Float128` in the
+headers, which means we need to add this type to the known tokens, to
+avoid warnings.
+
+original commit:
+https://github.com/GNOME/gobject-introspection/commit/8cf3e8e5cf6d0d49db359f50c6eb0bc9ca22fbef
+
+Signed-off-by: Adam Duskett <aduskett@gmail.com>
+---
+
+diff --git a/giscanner/scannerlexer.l b/giscanner/scannerlexer.l
+index 7dbab5c8..218024e9 100644
+--- a/giscanner/scannerlexer.l
++++ b/giscanner/scannerlexer.l
+@@ -192,7 +192,7 @@ stringtext				([^\\\"])|(\\.)
+ "__stdcall" 			        { /* ignore */ }
+ "__w64"					{ /* ignore */ }
+ "__int64"				{ return INT; }
+-
++"_Float128"                             { return FLOAT; }
+ 
+ "G_GINT64_CONSTANT"			{ return INTL_CONST; }
+ "G_GUINT64_CONSTANT"			{ return INTUL_CONST; }
diff --git a/package/gobject-introspection/Config.in b/package/gobject-introspection/Config.in
new file mode 100644
index 0000000000..fccdc0a936
--- /dev/null
+++ b/package/gobject-introspection/Config.in
@@ -0,0 +1,30 @@
+config BR2_PACKAGE_GOBJECT_INTROSPECTION
+	bool "gobject-introspection"
+	depends on BR2_PACKAGE_HOST_QEMU_ARCH_SUPPORTS
+	depends on BR2_TOOLCHAIN_HAS_THREADS # libffi, libglib2
+	depends on BR2_TOOLCHAIN_USES_GLIBC
+	depends on BR2_USE_MMU # python3, libglib2
+	depends on BR2_USE_WCHAR # python3, libglib2 -> gettext
+	depends on !BR2_STATIC_LIBS
+	depends on !BR2_MIPS_NABI32
+	select BR2_PACKAGE_LIBFFI
+	select BR2_PACKAGE_ZLIB
+	select BR2_PACKAGE_LIBGLIB2
+	select BR2_PACKAGE_HOST_QEMU
+	select BR2_PACKAGE_HOST_QEMU_LINUX_USER_MODE
+	select BR2_PACKAGE_PYTHON3 if !BR2_PACKAGE_PYTHON
+	help
+	  GObject introspection is a middleware layer between C
+	  libraries (using GObject) and language bindings. The C library
+	  can be scanned at compile time and generate a metadata file,
+	  in addition to the actual native C library. Then at runtime,
+	  language bindings can read this metadata and automatically
+	  provide bindings to call into the C library.
+
+	  https://wiki.gnome.org/action/show/Projects/GObjectIntrospection
+
+comment "gobject-introspection needs a glibc toolchain w/ wchar, threads, dynamic library"
+	depends on BR2_USE_MMU
+	depends on BR2_PACKAGE_GOBJECT_INTROSPECTION_ARCH_SUPPORTS_TARGET
+	depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS || \
+		BR2_STATIC_LIBS || !BR2_TOOLCHAIN_USES_GLIBC
diff --git a/package/gobject-introspection/cross-ldd b/package/gobject-introspection/cross-ldd
new file mode 100644
index 0000000000..ef2ca20f39
--- /dev/null
+++ b/package/gobject-introspection/cross-ldd
@@ -0,0 +1,362 @@
+#!/bin/bash
+
+# ldd drop-in replacement for cross-compilation toolchains.
+
+# This file is a slightly modified version of xldd.in from
+# crosstool-ng 1.22.0
+
+# In order to use it, copy it in same directory than other
+# toolchain binaries and rename it with same tuple. 
+# (i.e. /opt/arm-sysmic-linux-gnueabihf/bin/arm-sysmic-linux-gnueabihf-ldd)
+# Thus, this will automaticaly detect necessary information
+# about your toolchain.
+
+export LC_ALL=C
+version="forked from crosstool-ng 1.22.0"
+# Change it to 64 if necessary
+bits="32"
+sed="${SED:-sed}"
+grep="${GREP:-grep}"
+
+my_name="$( basename "${0}" )"
+prefix="${0%-ldd}"
+gcc="${prefix}-gcc"
+readelf="${prefix}-readelf"
+fake_load_addr_root="$((0xdeadbeef))"
+fake_load_addr_rpath="$((0xdeadc0de))"
+fake_load_addr_sysroot="$((0x8badf00d))"
+ld_library_path="/lib:/usr/lib"
+
+do_error() {
+    printf "%s: %s\n" "${my_name}" "$*" >&2
+}
+
+do_opt_error() {
+    do_error "$@"
+    printf "Try \`%s --help' for more information\n" "${my_name}" >&2
+}
+
+do_trace() {
+    local depth=0
+
+    [ -z "${CT_XLDD_VERBOSE}" ] && return 0
+
+    for((depth=0; "${#FUNCNAME[$((depth+1))]}" != 0; depth++)); do :; done
+    printf "%*s" $((4*(depth-1))) "" >&2
+    printf -- "$@" >&2
+}
+
+show_version() {
+    # Fake a real ldd, just in case some dumb script would check
+    cat <<_EOF_
+ldd (crosstool-NG) ${version}
+Copyright (C) 2010 "Yann E. MORIN" <yann.morin.1998@free.fr>
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+Licensed under the GPLv2, see the file LICENSES in the top-directory of the
+sources for this package.
+_EOF_
+}
+
+show_help() {
+    cat <<_EOF_
+Usage: ${my_name} [OPTION]... --root DIR FILE...
+      --help              print this help and exit
+      --version           print version information and exit
+      --root dir          treat dir as being the root of the target
+  -s, --show-system       mark libs from the sysroot with a trailing '[*]'
+                          and libs found via RPATH with a trailing '[+]'
+
+_EOF_
+    cat <<_EOF_ |fmt
+${my_name} tries to mimick the behavior of a real native ldd, but can be
+used in a cross-development environment. Here is how it differs from a
+real native ldd:
+
+If the CT_XLDD_VERBOSE variable is set and non-empty, then ${my_name} will
+print a lot of debug messages, explaining how it builds the library
+search path, and how each library was found and why.
+
+The LD_LIBRARY_PATH variable is not used, as it can not reliably be
+guessed except@runtime, and we can't run.
+
+${my_name} does not scan /etc/ld.so.cache, but instead uses /etc/ld.so.conf
+(it understands the include directives therein for libces that have that).
+
+${my_name} also interprets (tries to!) the RPATH/RUNPATH records found in
+the dynamic ELF section. Such paths are searched for only relative to
+the specified root, not from the sysroot (see below). Also, those paths
+are searched for not only for the file they appear in, but also for its
+dependencies.
+
+${my_name} will search the directory specified with --root for libraries
+to resolve the NEEDED tags. If --root is not set, then ${my_name} will
+use the value in the environment variable \${CT_XLDD_ROOT}. If neither
+is set, then this is an error.
+
+If NEEDED libraries can't be found in the specified root directory, then
+${my_name} will also look in the sysroot of the toolchain to see if it
+can find them.
+
+For NEEDED libraries that were found, the output will look like:
+        libneeded.so => /path/to/libneeded.so (0xloadaddr)
+
+and for those that were not found, the output will look like:
+        libneeded.so not found
+
+The paths are relative to the specified root directory, or to the sysroot
+(eg. /lib/libneeded.so, /usr/lib/libneeded.so, and so on...).
+
+The expected load address 'loadaddr' is a faked address to match the output
+of the real ldd, but has no actual meaning (set to some constants for now,
+0x8badf00d for libraries from the sysroot, 0xdeadc0de for those found via
+the RPATH/RUNPATH records, and 0xdeadbeef for others).
+_EOF_
+
+# Unimplemeted yet:
+#  -d, --data-relocs       process data relocations
+#  -r, --function-relocs   process data and function relocations
+#  -u, --unused            print unused direct dependencies
+#  -v, --verbose           print all information
+
+# See also this thread:
+#  http://sourceware.org/ml/crossgcc/2008-09/msg00057.html
+}
+
+# Parse command line options
+root="${CT_XLDD_ROOT}"
+show_system=
+while true; do
+    case "${1}" in
+        --help)
+            show_help
+            exit 0
+            ;;
+        --version)
+            show_version
+            exit 0
+            ;;
+        --root)
+            root="$2"
+            shift
+            ;;
+        --root=*)
+            root="${1#--root=}"
+            ;;
+        --show-system|-s)
+            show_system=1
+            ;;
+        -*)
+            do_opt_error "unrecognized option \`${1}'"
+            exit 1
+            ;;
+        *)
+            break
+            ;;
+    esac
+    shift
+done
+
+# Sanity checks
+sysroot="$( "${gcc}" -print-sysroot 2>/dev/null )"
+if [ -z "${sysroot}" ]; then
+    sysroot="$( "${gcc}" -print-file-name=libc.so 2>/dev/null \
+                |${sed} -r -e 's:/usr/lib/libc.so$::;'        \
+              )"
+fi
+if [ -z "${sysroot}" ]; then
+    do_error "unable to find sysroot for \`${gcc}'"
+fi
+
+if [ -z "${root}" ]; then
+    root=${sysroot}
+fi
+if [ ! -d "${root}" ]; then
+    do_error "\`${root}': no such file or directory"
+    exit 1
+fi
+
+do_report_needed_found() {
+    local needed="${1}"
+    local path="${2}"
+    local origin="${3}"
+    local loadaddr
+    local sys
+
+    case "${origin}" in
+        root)
+            loadaddr="${fake_load_addr_root}"
+            ;;
+        rpath)
+            loadaddr="${fake_load_addr_rpath}"
+            if [ -n "${show_system}" ]; then
+                sys=" [+]"
+            fi
+            ;;
+        sysroot)
+            loadaddr="${fake_load_addr_sysroot}"
+            if [ -n "${show_system}" ]; then
+                sys=" [*]"
+            fi
+            ;;
+    esac
+
+    printf "%8s%s => %s (0x%0*x)%s\n"   \
+           ""                           \
+           "${needed}"                  \
+           "${path}"                    \
+           "$((bits/4))"                \
+           "${loadaddr}"                \
+           "${sys}"
+}
+
+# Search a needed file, scanning ${lib_dir} in the root directory
+do_find_needed() {
+    local needed="${1}"
+    local -a list
+    local -a dirs
+    local found
+    local where
+    local base
+    local d i
+
+    do_trace "Searching for '%s'\n" "${needed}"
+
+    # rpath shall come first!
+    list=(                      \
+        "rpath:${root}"         \
+        "root:${root}"          \
+        "sysroot:${sysroot}"    \
+    )
+
+    for i in "${list[@]}"; do
+        where="${i%%:*}"
+        base="${i#*:}"
+        if [ "${where}" = "rpath" ]; then
+            dirs=( "${search_rpath[@]}" )
+        else
+            dirs=( "${needed_search_path[@]}" )
+        fi
+        for d in "${dirs[@]}"; do
+            do_trace "-> looking in '%s' (%s)\n" "${d}" "${where}"
+            if [ -f "${base}${d}/${needed}" ]; then
+                found="${d}/${needed}"
+                do_trace "---> found\n"
+                break 2
+            fi
+        done
+    done
+
+    if [ -n "${found}" ]; then
+        do_report_needed_found "${needed}" "${found}" "${where}"
+        do_process_file "${base}${found}"
+    else
+        printf "%8s%s not found\n" "" "${needed}"
+    fi
+
+    do_trace "Done searching for '%s'\n" "${needed}"
+}
+
+# Scan a file for all NEEDED tags
+do_process_file() {
+    local file="${1}"
+    local -a save_search_rpath
+    local n m
+    local found
+
+    do_trace "Parsing file '%s'\n" "${file}"
+
+    save_search_rpath=( "${search_rpath[@]}" )
+    for n in $( "${readelf}" -d "${file}"                                           \
+                |"${grep}" -E '\((RPATH|RUNPATH)\)'                                 \
+                |"${sed}" -r -e 's/^.*Library r(|un)path:[[:space:]]+\[(.*)\]$/\2/;'\
+              ); do
+        do_trace "-> adding rpath '%s'\n" "${n}"
+        search_rpath+=( "${n}" )
+    done
+    do_trace ": search path:\n"
+    for n in "${search_rpath[@]}" "${needed_search_path[@]}"; do
+        do_trace ": - '%s'\n" "${n}"
+    done
+    do_trace ": end search path\n"
+
+    for n in $( "${readelf}" -d "${file}"                                               \
+                |"${grep}" -E '\(NEEDED\)'                                              \
+                |"${sed}" -r -e 's/^.*Shared library:[[:space:]]+\[([^]]+)\].*/\1/;'    \
+              ); do
+        found=0
+        for m in "${needed_list[@]}"; do
+            [ "${n}" = "${m}" ] && found=1 && break
+        done
+        if [ ${found} -ne 0 ]; then
+            do_trace "-> skipping already known dependency '%s'\n" "${n}"
+            continue
+        fi
+        do_trace "-> handling new dependency '%s'\n" "${n}"
+        needed_list+=( "${n}" )
+        do_find_needed "${n}"
+        do_trace "-> done handling dependency '%s'\n" "${n}"
+    done
+
+    search_rpath=( "${save_search_rpath[@]}" )
+
+    do_trace "Finished parsing file '%s'\n" "${file}"
+}
+
+# Recursively scan a /etc/ld.so.conf file
+do_scan_etc_ldsoconf() {
+    local ldsoconf="${1}"
+    local g
+    local f
+
+    [ -f "${ldsoconf}" ] || return 0
+    do_trace "Parsing ld.so.conf: '%s'\n" "${ldsoconf}"
+
+    while read line; do
+        case "${line}" in
+            include\ *)
+                g="${root}${line#include }"
+                do_trace "-> handling include directive '%s'\n" "${g}"
+                for f in ${g}; do
+                    do_scan_etc_ldsoconf "${f}"
+                done
+                do_trace "-> finished handling include directive '%s'\n" "${g}"
+                ;;
+            \#*|"")
+                ;;
+            *)
+                do_trace "-> adding search dir '%s'\n" "${line}"
+                needed_search_path+=( "${line}" )
+                ;;
+        esac
+    done <"${ldsoconf}"
+
+    do_trace "Finished parsing ld.so.conf: '%s'\n" "${ldsoconf}"
+}
+
+# Build up the full list of search directories
+declare -a needed_search_path
+do_trace "Adding basic lib dirs\n"
+ld_library_path="${ld_library_path}:"
+while [ -n "${ld_library_path}" ]; do
+    d="${ld_library_path%%:*}"
+    if [ -n "${d}" ]; then
+        do_trace "-> adding search dir '%s'\n" "${d}"
+        needed_search_path+=( "${d}" )
+    fi
+    ld_library_path="${ld_library_path#*:}"
+done
+do_trace "Done adding basic lib dirs\n"
+do_trace "Scanning '/etc/ld.so.conf'\n"
+do_scan_etc_ldsoconf "${root}/etc/ld.so.conf"
+do_trace "Done scanning '/etc/ld.so.conf'\n"
+do_trace "Search path:\n"
+for p in "${needed_search_path[@]}"; do
+    do_trace "-> '%s'\n" "${p}"
+done
+
+declare -a needed_list
+declare -a search_rpath
+do_trace "Scanning file '%s'\n" "${1}"
+do_process_file "${1}"
+do_trace "Done scanning file '%s'\n" "${1}"
diff --git a/package/gobject-introspection/g-ir-compiler.in b/package/gobject-introspection/g-ir-compiler.in
new file mode 100644
index 0000000000..b2f97ea870
--- /dev/null
+++ b/package/gobject-introspection/g-ir-compiler.in
@@ -0,0 +1,2 @@
+#!/bin/sh
+$STAGING_DIR/usr/bin/g-ir-scanner-qemuwrapper $STAGING_DIR/usr/bin/g-ir-compiler.real "$@"
diff --git a/package/gobject-introspection/g-ir-scanner-lddwrapper.in b/package/gobject-introspection/g-ir-scanner-lddwrapper.in
new file mode 100644
index 0000000000..3313c877f8
--- /dev/null
+++ b/package/gobject-introspection/g-ir-scanner-lddwrapper.in
@@ -0,0 +1,2 @@
+#!/bin/sh
+${TARGET_CROSS}ldd "$@"
diff --git a/package/gobject-introspection/g-ir-scanner-qemuwrapper.in b/package/gobject-introspection/g-ir-scanner-qemuwrapper.in
new file mode 100644
index 0000000000..e793ce193f
--- /dev/null
+++ b/package/gobject-introspection/g-ir-scanner-qemuwrapper.in
@@ -0,0 +1,10 @@
+#!/bin/sh
+# Use a modules directory which does not exist so we don't load random things
+# which may then get deleted (or their dependencies) and potentially segfault
+export GIO_MODULE_DIR=$STAGING_DIR/usr/lib/gio/modules-dummy
+PSEUDO_UNLOAD=1 @QEMU_USER@ -r @TOOLCHAIN_HEADERS_VERSION@ -L $STAGING_DIR -E LD_LIBRARY_PATH=$GIR_EXTRA_LIBS_PATH:.libs:$STAGING_DIR/usr/lib:$STAGING_DIR/lib "$@"
+if [[ $? -ne 0 ]]; then
+    echo "If the above error message is about missing .so libraries, then setting up GIR_EXTRA_LIBS_PATH in the .mk file should help."
+    echo '(typically like this: GIR_EXTRA_LIBS_PATH="$(@D)/.libs")'
+    exit 1
+fi
diff --git a/package/gobject-introspection/g-ir-scanner.in b/package/gobject-introspection/g-ir-scanner.in
new file mode 100644
index 0000000000..71b1871cfd
--- /dev/null
+++ b/package/gobject-introspection/g-ir-scanner.in
@@ -0,0 +1,3 @@
+#!/bin/sh
+export GI_SCANNER_DISABLE_CACHE=1
+$HOST_DIR/bin/g-ir-scanner --lib-dirs-envvar=GIR_EXTRA_LIBS_PATH --use-binary-wrapper=$STAGING_DIR/usr/bin/g-ir-scanner-qemuwrapper --use-ldd-wrapper=$STAGING_DIR/usr/bin/g-ir-scanner-lddwrapper --add-include-path=$STAGING_DIR/usr/share/gir-1.0 "$@"
diff --git a/package/gobject-introspection/gobject-introspection.hash b/package/gobject-introspection/gobject-introspection.hash
new file mode 100644
index 0000000000..a41fb58a5f
--- /dev/null
+++ b/package/gobject-introspection/gobject-introspection.hash
@@ -0,0 +1,4 @@
+#From http://ftp.gnome.org/pub/GNOME/sources/gobject-introspection/1.54/gobject-introspection-1.54.1.sha256sum
+sha256 b88ded5e5f064ab58a93aadecd6d58db2ec9d970648534c63807d4f9a7bb877e gobject-introspection-1.54.1.tar.xz
+sha256 d245807f90032872d1438d741ed21e2490e1175dc8aa3afa5ddb6c8e529b58e5 COPYING.LGPL
+sha256 32b1062f7da84967e7019d01ab805935caa7ab7321a7ced0e30ebe75e5df1670 COPYING.GPL
diff --git a/package/gobject-introspection/gobject-introspection.mk b/package/gobject-introspection/gobject-introspection.mk
new file mode 100644
index 0000000000..6cdc87ef35
--- /dev/null
+++ b/package/gobject-introspection/gobject-introspection.mk
@@ -0,0 +1,89 @@
+################################################################################
+#
+# gobject-introspection
+#
+################################################################################
+
+GOBJECT_INTROSPECTION_VERSION_MAJOR = 1.54
+GOBJECT_INTROSPECTION_VERSION = $(GOBJECT_INTROSPECTION_VERSION_MAJOR).1
+GOBJECT_INTROSPECTION_SITE = http://ftp.gnome.org/pub/GNOME/sources/gobject-introspection/$(GOBJECT_INTROSPECTION_VERSION_MAJOR)
+GOBJECT_INTROSPECTION_SOURCE = gobject-introspection-$(GOBJECT_INTROSPECTION_VERSION).tar.xz
+GOBJECT_INTROSPECTION_DEPENDENCIES = libffi zlib libglib2 host-qemu host-gobject-introspection
+GOBJECT_INTROSPECTION_INSTALL_STAGING = YES
+GOBJECT_INTROSPECTION_AUTORECONF = YES
+GOBJECT_INTROSPECTION_LICENSE = Dual LGPLv2+/GPLv2+
+GOBJECT_INTROSPECTION_LICENSE_FILES = COPYING.LGPL COPYING.GPL
+HOST_GOBJECT_INTROSPECTION_DEPENDENCIES = host-libglib2 host-flex host-bison
+
+GOBJECT_INTROSPECTION_CONF_OPTS = \
+	--enable-host-gi \
+	--disable-static \
+	--enable-gi-cross-wrapper=$(STAGING_DIR)/usr/bin/g-ir-scanner-qemuwrapper \
+	--enable-gi-ldd-wrapper=$(STAGING_DIR)/usr/bin/g-ir-scanner-lddwrapper \
+	--disable-introspection-data
+
+ifeq ($(BR2_PACKAGE_CAIRO),y)
+GOBJECT_INTROSPECTION_DEPENDENCIES += cairo
+endif
+ifeq ($(BR2_PACKAGE_LIBFFI),y)
+GOBJECT_INTROSPECTION_DEPENDENCIES += libffi
+endif
+
+ifeq ($(BR2_PACKAGE_PYTHON),y)
+GOBJECT_INTROSPECTION_DEPENDENCIES += python
+HOST_GOBJECT_INTROSPECTION_DEPENDENCIES += host-python
+GOBJECT_INTROSPECTION_PYTHON_PATH="$(STAGING_DIR)/usr/bin/python2"
+else
+GOBJECT_INTROSPECTION_DEPENDENCIES += python3
+HOST_GOBJECT_INTROSPECTION_DEPENDENCIES += host-python3
+GOBJECT_INTROSPECTION_PYTHON_PATH="$(STAGING_DIR)/usr/bin/python3"
+endif
+
+# GI_SCANNER_DISABLE_CACHE=1 prevents g-ir-scanner from writing cache data to $HOME
+GOBJECT_INTROSPECTION_CONF_ENV = \
+	GI_SCANNER_DISABLE_CACHE=1 \
+	GIR_EXTRA_LIBS_PATH=$(@D)/.libs \
+	PYTHON_INCLUDES="`$(GOBJECT_INTROSPECTION_PYTHON_PATH)-config --includes`"
+
+# Make sure g-ir-tool-template uses the host python.
+define GOBJECT_INTROSPECTION_FIX_TOOLTEMPLATE_PYTHON_PATH
+	sed -i -e '1s,#!.*,#!$(HOST_DIR)/bin/python,' $(@D)/tools/g-ir-tool-template.in
+endef
+GOBJECT_INTROSPECTION_PRE_CONFIGURE_HOOKS = GOBJECT_INTROSPECTION_FIX_TOOLTEMPLATE_PYTHON_PATH
+HOST_GOBJECT_INTROSPECTION_PRE_CONFIGURE_HOOKS = GOBJECT_INTROSPECTION_FIX_TOOLTEMPLATE_PYTHON_PATH
+
+GOBJECT_INTROSPECTION_WRAPPERS = \
+	g-ir-compiler \
+	g-ir-scanner
+
+# In order for gobject-introspection to work, qemu needs to run temporarily
+# to create binaries on the fly by g-ir-scanner. This involves creating
+# several wrapper scripts to accomplish the task:
+# g-ir-scanner-qemuwrapper, g-ir-compiler-wrapper,
+# g-ir-scanner-lddwrapper, g-ir-scanner-wrapper, g-ir-compiler-wrapper, and
+# finally a cross-ldd.
+define GOBJECT_INTROSPECTION_INSTALL_WRAPPERS
+	# Move the real binaries to their names.real, then replace them with
+	# the wrappers.
+	$(foreach w,$(GOBJECT_INTROSPECTION_WRAPPERS),
+		mv $(STAGING_DIR)/usr/bin/$(w) $(STAGING_DIR)/usr/bin/$(w).real
+		$(INSTALL) -D -m 755 \
+			package/gobject-introspection/$(w).in $(STAGING_DIR)/usr/bin/$(w)
+	)
+	$(INSTALL) -D -m 755 package/gobject-introspection/cross-ldd $(TARGET_CROSS)ldd
+	$(INSTALL) -D -m 755 package/gobject-introspection/g-ir-scanner-lddwrapper.in $(STAGING_DIR)/usr/bin/g-ir-scanner-lddwrapper
+	$(INSTALL) -D -m 755 package/gobject-introspection/g-ir-scanner-qemuwrapper.in $(STAGING_DIR)/usr/bin/g-ir-scanner-qemuwrapper
+	$(SED) "s|@QEMU_USER@|$(QEMU_USER)|g" $(STAGING_DIR)/usr/bin/g-ir-scanner-qemuwrapper
+	$(SED) "s|@TOOLCHAIN_HEADERS_VERSION@|$(BR2_TOOLCHAIN_HEADERS_AT_LEAST)|g" $(STAGING_DIR)/usr/bin/g-ir-scanner-qemuwrapper
+	$(SED) "s at g_ir_scanner=.*@g_ir_scanner=$(STAGING_DIR)/usr/bin/g-ir-scanner at g" \
+	$(STAGING_DIR)/usr/lib/pkgconfig/gobject-introspection-1.0.pc
+
+	# The pkgconfig file needs to point towards the wrappers instead of the native
+	# binaries.
+	$(SED) "s at g_ir_compiler=.*@g_ir_compiler=$(STAGING_DIR)/usr/bin/g-ir-compiler at g" \
+	$(STAGING_DIR)/usr/lib/pkgconfig/gobject-introspection-1.0.pc
+endef
+GOBJECT_INTROSPECTION_POST_INSTALL_STAGING_HOOKS = GOBJECT_INTROSPECTION_INSTALL_WRAPPERS
+
+$(eval $(autotools-package))
+$(eval $(host-autotools-package))
diff --git a/package/pkg-autotools.mk b/package/pkg-autotools.mk
index 45de99356f..06021f95c1 100644
--- a/package/pkg-autotools.mk
+++ b/package/pkg-autotools.mk
@@ -162,6 +162,7 @@ endif
 
 $(2)_CONF_ENV			?=
 $(2)_CONF_OPTS			?=
+$(2)_GIR_EXTRA_LIBS_PATH	?=
 $(2)_MAKE_ENV			?=
 $(2)_MAKE_OPTS			?=
 $(2)_INSTALL_OPTS                ?= install
@@ -239,6 +240,8 @@ endef
 endif
 endif
 
+export GIR_EXTRA_LIBS_PATH=$$($$(PKG)_GIR_EXTRA_LIBS_PATH)
+
 $(2)_POST_PATCH_HOOKS += UPDATE_CONFIG_HOOK
 
 ifeq ($$($(2)_AUTORECONF),YES)
-- 
2.14.3

[Buildroot] [PATCH v5 1/1] gobject-introspection: new package

[Matthew Weber]

Adam,

On Sun, Mar 18, 2018 at 2:01 PM, Adam Duskett <aduskett@gmail.com> wrote:
>
> GObject introspection is a middleware layer between C
> libraries (using GObject) and language bindings. The C library
> can be scanned at compile time and generate a metadata file,
> in addition to the actual native C library. Then at runtime,
> language bindings can read this metadata and automatically
> provide bindings to call into the C library.
>
> There's an XML format called GIR used by GObject-Introspection.
> The purpose of it is to provide a standard structure to access the
> complete available API that a library or other unit of code exports.
> It is meant to be language agnostic using namespaces to separate
> core, language or library specific functionality.
>
> Cross-compiling gobject-introspection is not an easy task. The main
> issue is that in the process of creating the XML files,
> gobject-introspection must first run and scan the binary, which, if the
> binary is cross-compiled, would not typically be possible from the host
> system.
>
> Because of this limitation, several wrappers are used to call instead
> first out qemu which will then run the native scanner to create the
> binaries.

Wondering if anyone has a concern with the wrappers being relocatable?
 The use case would be a developer builds their own library and wants
to generate GIR using the SDK.

I believe it would just require the wrappers to use full paths so that
the support/misc/relocate-sdk.sh as part of "make sdk" can fixup the
wrappers.   However, the sdk make target and the relocate-sdk.sh would
need to be updated to handle fixing up the staging directory paths...
Unsure if the staging fixup would be a good thing though, as other
files in that folder may not like that (nothing else really should
have absolute paths, right? so maybe it's transparent).  Another
approach would be to make the wrappers relative pathed but that gets
tricky with HOST_DIR and STAGING_DIR having the option of being custom
locations and not in the same output folder.

> +
> +GOBJECT_INTROSPECTION_CONF_OPTS = \
> +       --enable-host-gi \
> +       --disable-static \
> +       --enable-gi-cross-wrapper=$(STAGING_DIR)/usr/bin/g-ir-scanner-qemuwrapper \
> +       --enable-gi-ldd-wrapper=$(STAGING_DIR)/usr/bin/g-ir-scanner-lddwrapper \
> +       --disable-introspection-data
> +
> +ifeq ($(BR2_PACKAGE_CAIRO),y)
> +GOBJECT_INTROSPECTION_DEPENDENCIES += cairo
> +endif
> +ifeq ($(BR2_PACKAGE_LIBFFI),y)
> +GOBJECT_INTROSPECTION_DEPENDENCIES += libffi
> +endif
> +
> +ifeq ($(BR2_PACKAGE_PYTHON),y)
> +GOBJECT_INTROSPECTION_DEPENDENCIES += python
> +HOST_GOBJECT_INTROSPECTION_DEPENDENCIES += host-python
> +GOBJECT_INTROSPECTION_PYTHON_PATH="$(STAGING_DIR)/usr/bin/python2"
> +else
> +GOBJECT_INTROSPECTION_DEPENDENCIES += python3
> +HOST_GOBJECT_INTROSPECTION_DEPENDENCIES += host-python3
> +GOBJECT_INTROSPECTION_PYTHON_PATH="$(STAGING_DIR)/usr/bin/python3"
> +endif
> +
> +# GI_SCANNER_DISABLE_CACHE=1 prevents g-ir-scanner from writing cache data to $HOME
> +GOBJECT_INTROSPECTION_CONF_ENV = \
> +       GI_SCANNER_DISABLE_CACHE=1 \

Does the GI_SCANNER_DISABLE_CACHE stick if a SDK was relocated?
Assuming it's a default which is captured as part of the tool build.

Matt

[Buildroot] [PATCH v5 1/1] gobject-introspection: new package

[Arnout Vandecappelle]

On 20-03-18 18:39, Matthew Weber wrote:
> However, the sdk make target and the relocate-sdk.sh would
> need to be updated to handle fixing up the staging directory paths...
> Unsure if the staging fixup would be a good thing though, as other
> files in that folder may not like that (nothing else really should
> have absolute paths, right? so maybe it's transparent).  Another
> approach would be to make the wrappers relative pathed but that gets
> tricky with HOST_DIR and STAGING_DIR having the option of being custom
> locations and not in the same output folder.

 Only HOST_DIR has the option of being in a custom location. STAGING_DIR is
always $(HOST_DIR)/$(GNU_TARGET_NAME)/sysroot.

 And in fact, relocate-sdk.sh is already going through STAGING_DIR: it does a
grep -r on HOST_DIR so it *will* also recurse into STAGING_DIR.

 Regards,
 Arnout

-- 
Arnout Vandecappelle                          arnout at mind be
Senior Embedded Software Architect            +32-16-286500
Essensium/Mind                                http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium           BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint:  7493 020B C7E3 8618 8DEC 222C 82EB F404 F9AC 0DDF

[Buildroot] [PATCH v5 5/5] gstreamer1 packages: add support for introspection

[Adam Duskett]

Now that there is support for gobject-introspection, we can add the appropriate
configuration options to support compiling against gobject-introspection.

In addition: gst1-plugins-base requires a patch to drop a incorrect reference
to sdp when compiling the rtsp gir file.

Signed-off-by: Adam Duskett <aduskett@gmail.com>
---
Changes v1 -> v4:
  - Add patch to series.

Changes v4 -> v5:
  - Changed --enable-introspection=yes to --enable-introspection (Yann)
  - Changed += GIR_EXTRA_LIBS_PATH="$(@D)/gst/.libs:$(@D)/libs/gst/base/.libs"
    to GSTREAMER1_GIR_EXTRA_LIBS_PATH=$(@D)/gst/.libs:$(@D)/libs/gst/base/.libs

 .../gst1-plugins-bad/gst1-plugins-bad.mk           |  5 ++++
 ...ncorrect-reference-to-gstreamer-sdp-in-Ma.patch | 28 ++++++++++++++++++++++
 .../gst1-plugins-base/gst1-plugins-base.mk         |  5 ++++
 package/gstreamer1/gstreamer1/gstreamer1.mk        |  6 +++++
 4 files changed, 44 insertions(+)
 create mode 100644 package/gstreamer1/gst1-plugins-base/0001-rtsp-drop-incorrect-reference-to-gstreamer-sdp-in-Ma.patch

diff --git a/package/gstreamer1/gst1-plugins-bad/gst1-plugins-bad.mk b/package/gstreamer1/gst1-plugins-bad/gst1-plugins-bad.mk
index a4adc0e49e..1f645c6a7c 100644
--- a/package/gstreamer1/gst1-plugins-bad/gst1-plugins-bad.mk
+++ b/package/gstreamer1/gst1-plugins-bad/gst1-plugins-bad.mk
@@ -64,6 +64,11 @@ GST1_PLUGINS_BAD_CONF_OPTS += \
 
 GST1_PLUGINS_BAD_DEPENDENCIES = gst1-plugins-base gstreamer1
 
+ifeq ($(BR2_PACKAGE_GOBJECT_INTROSPECTION),y)
+GST1_PLUGINS_BAD_CONF_OPTS += --enable-introspection
+GST1_PLUGINS_BAD_GIR_EXTRA_LIBS_PATH=$(@D)/gst-libs/gst/allocators/.libs
+endif
+
 ifeq ($(BR2_PACKAGE_RPI_USERLAND),y)
 # RPI has odd locations for several required headers.
 GST1_PLUGINS_BAD_CONF_ENV += \
diff --git a/package/gstreamer1/gst1-plugins-base/0001-rtsp-drop-incorrect-reference-to-gstreamer-sdp-in-Ma.patch b/package/gstreamer1/gst1-plugins-base/0001-rtsp-drop-incorrect-reference-to-gstreamer-sdp-in-Ma.patch
new file mode 100644
index 0000000000..71d9732604
--- /dev/null
+++ b/package/gstreamer1/gst1-plugins-base/0001-rtsp-drop-incorrect-reference-to-gstreamer-sdp-in-Ma.patch
@@ -0,0 +1,28 @@
+From 4330915d88dc4dd46eb4c28d756482b767c2747f Mon Sep 17 00:00:00 2001
+From: Alexander Kanavin <alex.kanavin@gmail.com>
+Date: Mon, 26 Oct 2015 17:30:14 +0200
+Subject: [PATCH] rtsp: drop incorrect reference to gstreamer-sdp in
+ Makefile.am
+
+Upstream-Status: Pending [review on oe-core maillist]
+Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
+Signed-off-by: Adam Duskett <aduskett@gmail.com>
+---
+ gst-libs/gst/rtsp/Makefile.am | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/gst-libs/gst/rtsp/Makefile.am b/gst-libs/gst/rtsp/Makefile.am
+index 4f6d9f8..0afa370 100644
+--- a/gst-libs/gst/rtsp/Makefile.am
++++ b/gst-libs/gst/rtsp/Makefile.am
+@@ -75,7 +75,6 @@ GstRtsp- at GST_API_VERSION@.gir: $(INTROSPECTION_SCANNER) libgstrtsp- at GST_API_VERS
+ 		--libtool="$(LIBTOOL)" \
+ 		--pkg gio-2.0 \
+ 		--pkg gstreamer- at GST_API_VERSION@ \
+-		--pkg gstreamer-sdp- at GST_API_VERSION@ \
+ 		--pkg-export gstreamer-rtsp- at GST_API_VERSION@ \
+ 		--add-init-section="$(INTROSPECTION_INIT)" \
+ 		--output $@ \
+-- 
+2.6.2
+
diff --git a/package/gstreamer1/gst1-plugins-base/gst1-plugins-base.mk b/package/gstreamer1/gst1-plugins-base/gst1-plugins-base.mk
index 2d183ce572..dd93ea5255 100644
--- a/package/gstreamer1/gst1-plugins-base/gst1-plugins-base.mk
+++ b/package/gstreamer1/gst1-plugins-base/gst1-plugins-base.mk
@@ -25,6 +25,11 @@ GST1_PLUGINS_BASE_CONF_OPTS += \
 
 GST1_PLUGINS_BASE_DEPENDENCIES = gstreamer1
 
+ifeq ($(BR2_PACKAGE_GOBJECT_INTROSPECTION),y)
+GST1_PLUGINS_BASE_CONF_OPTS += --enable-introspection
+GST1_PLUGINS_BASE_GIR_EXTRA_LIBS_PATH=$(@D)/gst-libs/gst/tag/.libs:$(@D)/gst-libs/gst/video/.libs:$(@D)/gst-libs/gst/audio/.libs:$(@D)/gst-libs/gst/rtp/.libs
+endif
+
 # These plugins are liste in the order from ./configure --help
 
 ifeq ($(BR2_PACKAGE_ORC),y)
diff --git a/package/gstreamer1/gstreamer1/gstreamer1.mk b/package/gstreamer1/gstreamer1/gstreamer1.mk
index b00057a374..7715ccbbff 100644
--- a/package/gstreamer1/gstreamer1/gstreamer1.mk
+++ b/package/gstreamer1/gstreamer1/gstreamer1.mk
@@ -32,4 +32,10 @@ GSTREAMER1_DEPENDENCIES = \
 	libglib2 \
 	$(if $(BR2_PACKAGE_LIBUNWIND),libunwind)
 
+ifeq ($(BR2_PACKAGE_GOBJECT_INTROSPECTION),y)
+GSTREAMER1_DEPENDENCIES += gobject-introspection
+GSTREAMER1_CONF_OPTS += --enable-introspection
+GSTREAMER1_GIR_EXTRA_LIBS_PATH=$(@D)/gst/.libs:$(@D)/libs/gst/base/.libs
+endif
+
 $(eval $(autotools-package))
-- 
2.14.3

[Buildroot] [PATCH v5 0/5] gobject-introspection: new series

[Matthew Weber]

Adam,

On Sun, Mar 18, 2018 at 2:01 PM, Adam Duskett <aduskett@gmail.com> wrote:
>
> For official submission to mainline Buildroot:
>
> This new series has the following upgrades:
>   - It now works on all architectures supported by qemu-host.
>   - Gstreamer1 can now compile gir files properly. (for real this time).
>   - General makefile cleanups.
>   - New patches that make cross-compiling a bit nicer (thanks, yocto!)

Suggest updating those patches to all have links to upstream
submissions as the string provided with the "Upstream: " comment in
the description of the patch.

>   - Removed a patch that was yocto specific and not needed with buildroot.
>   - Added a PKG_GIR_EXTRA_LIBS variable in pkg-autotools.mk

Should the pkg-autotools.mk changes for this option, be a separate
patch added before the others that use it?

Matt

[Buildroot] [PATCH v5 0/5] gobject-introspection: new series

[Adam Duskett]

Matthew;

First off; I want to personally say thank you again for taking the
time to review this huge patch.

On Tue, Mar 20, 2018 at 12:12 PM, Matthew Weber
<matthew.weber@rockwellcollins.com> wrote:
> Adam,
>
> On Sun, Mar 18, 2018 at 2:01 PM, Adam Duskett <aduskett@gmail.com> wrote:
>>
>> For official submission to mainline Buildroot:
>>
>> This new series has the following upgrades:
>>   - It now works on all architectures supported by qemu-host.
>>   - Gstreamer1 can now compile gir files properly. (for real this time).
>>   - General makefile cleanups.
>>   - New patches that make cross-compiling a bit nicer (thanks, yocto!)
>
> Suggest updating those patches to all have links to upstream
> submissions as the string provided with the "Upstream: " comment in
> the description of the patch.
>
Can do! I found went and hunted them down.

>>   - Removed a patch that was yocto specific and not needed with buildroot.
>>   - Added a PKG_GIR_EXTRA_LIBS variable in pkg-autotools.mk
>
> Should the pkg-autotools.mk changes for this option, be a separate
> patch added before the others that use it?
>
> Matt
I can live with that.