[Buildroot] Mono: new package

[Buildroot] Mono: new package

[Angelo Compagnucci]

[Thomas:

  - Merge mono-managed and mono-native as a single package. The
    mono-managed stuff is done by the host variant of the mono
    package, while the mono-native stuff is done as the target variant
    of the mono package.

  - Introduce a BR2_PACKAGE_MONO_ARCH_SUPPORTS blind Config.in option
    to make sure the IPv6 related comment is not displayed when the
    architecture being used anyway doesn't support Mono.

  - Add a patch to Mono to fix the C library path when uClibc and Musl
    is used. This is a better approach than the
    POST_INSTALL_TARGET_HOOKS because this approach can potentially be
    submitted upstreamed, which ultimately allows to simplify the
    Buildroot package.

  - Depend on a 'monolite' package, and use it instead of letting Mono
    download Monolite by itself, which circumvents Buildroot's
    download infrastructure.
    mono-managed stuff is done by the host variant of the mono
    package, while the mono-native stuff is done as the target variant
    of the mono package.

  - Introduce a BR2_PACKAGE_MONO_ARCH_SUPPORTS blind Config.in option
    to make sure the IPv6 related comment is not displayed when the
    architecture being used anyway doesn't support Mono.

  - Add a patch to Mono to fix the C library path when uClibc and Musl
    is used. This is a better approach than the
    POST_INSTALL_TARGET_HOOKS because this approach can potentially be
    submitted upstreamed, which ultimately allows to simplify the
    Buildroot package.

  - Depend on a 'monolite' package, and use it instead of letting Mono
    download Monolite by itself, which circumvents Buildroot's
    download infrastructure.

  - Move the installation of Mono libraries to the target Mono
    package, as a POST_INSTALL_TARGET_HOOKS.]

[Angelo:

  - Bump to the latest Mono version 3.10.0

  - Add selection for .Net runtime compilation and installation in
    target. If nothing is selected, only a minimal mono is built ]

[Buildroot] [PATCH 1/2] package/monolite: new package

[Angelo Compagnucci]

This patch adds Monolite package. This package is a dependency of Mono
package.

Signed-off-by: Angelo Compagnucci <angelo.compagnucci@gmail.com>
---
 package/monolite/monolite.mk |   17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 package/monolite/monolite.mk

diff --git a/package/monolite/monolite.mk b/package/monolite/monolite.mk
new file mode 100644
index 0000000..82eaf57
--- /dev/null
+++ b/package/monolite/monolite.mk
@@ -0,0 +1,17 @@
+#############################################################
+#
+# monolite
+#
+#############################################################
+
+MONOLITE_VERSION = 111
+MONOLITE_SITE = http://storage.bos.xamarin.com/mono-dist-master/latest/
+MONOLITE_SOURCE = monolite-$(MONOLITE_VERSION)-latest.tar.gz
+MONOLITE_LICENSE = Dual license LGPL, commercial
+
+define HOST_MONOLITE_INSTALL_CMDS
+	mkdir -p $(HOST_DIR)/usr/lib/monolite
+	cp $(@D)/* $(HOST_DIR)/usr/lib/monolite
+endef
+
+$(eval $(host-generic-package))
-- 
1.7.9.5

[Buildroot] [PATCH 2/2] package/mono: new package

[Angelo Compagnucci]

This patch adds the complete Mono implementation. This patch builds
both the native and managed parts.

Signed-off-by: Angelo Compagnucci <angelo.compagnucci@gmail.com>
---
 package/Config.in                               |    1 +
 package/mono/Config.in                          |   39 ++++++++++++
 package/mono/mono-001-gc-fix-uclibc.patch       |   16 +++++
 package/mono/mono-002-support-uclibc-musl.patch |   25 ++++++++
 package/mono/mono.mk                            |   74 +++++++++++++++++++++++
 5 files changed, 155 insertions(+)
 create mode 100644 package/mono/Config.in
 create mode 100644 package/mono/mono-001-gc-fix-uclibc.patch
 create mode 100644 package/mono/mono-002-support-uclibc-musl.patch
 create mode 100644 package/mono/mono.mk

diff --git a/package/Config.in b/package/Config.in
index ea89c96..92cf4b8 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -433,6 +433,7 @@ menu "Lua libraries/modules"
 	source "package/xavante/Config.in"
 endmenu
 endif
+	source "package/mono/Config.in"
 	source "package/nodejs/Config.in"
 	source "package/perl/Config.in"
 if BR2_PACKAGE_PERL
diff --git a/package/mono/Config.in b/package/mono/Config.in
new file mode 100644
index 0000000..de2d68b
--- /dev/null
+++ b/package/mono/Config.in
@@ -0,0 +1,39 @@
+config BR2_PACKAGE_MONO_ARCH_SUPPORTS
+	bool
+	default y if (BR2_arm || BR2_armeb || BR2_i386 || BR2_mips || \
+		      BR2_mipsel || BR2_powerpc || BR2_sparc || BR2_x86_64)
+
+config BR2_PACKAGE_MONO
+	bool "mono"
+	select BR2_STRIP_none
+	depends on BR2_PACKAGE_MONO_ARCH_SUPPORTS
+	depends on BR2_INET_IPV6
+	help
+	  An open source, cross-platform, implementation of C#
+	  and the CLR that is binary compatible with Microsoft.NET.
+
+	  http://download.mono-project.com/sources/mono/
+
+if BR2_PACKAGE_MONO
+	config BR2_PACKAGE_MONO_20
+		bool "2.0 .Net Runtime"
+		help
+		  Version 2.0 of Mono .Net runtime
+	config BR2_PACKAGE_MONO_35
+		bool "3.5 .Net Runtime"
+		help
+		  Version 3.0 of Mono .Net runtime
+	config BR2_PACKAGE_MONO_40
+		bool "4.0 .Net Runtime"
+		help
+		  Version 4.0 of Mono .Net runtime
+	config BR2_PACKAGE_MONO_45
+		default y
+		bool "4.5 .Net Runtime"
+		help
+		  Version 4.5 of Mono .Net runtime
+
+endif
+
+comment "mono needs a toolchain w/ IPv6"
+	depends on !BR2_INET_IPV6
diff --git a/package/mono/mono-001-gc-fix-uclibc.patch b/package/mono/mono-001-gc-fix-uclibc.patch
new file mode 100644
index 0000000..951d568
--- /dev/null
+++ b/package/mono/mono-001-gc-fix-uclibc.patch
@@ -0,0 +1,16 @@
+Disable backtrace on not supprted uclibc.
+
+Signed-off-by: Angelo Compagnucci <angelo.compagnucci@gmail.com>
+
+diff -purN mono-native-3.8.0.orig/libgc/include/gc.h mono-native-3.8.0/libgc/include/gc.h
+--- mono-native-3.8.0.orig/libgc/include/gc.h	2014-10-07 15:00:21.259466731 +0200
++++ mono-native-3.8.0/libgc/include/gc.h	2014-10-07 15:05:25.560975681 +0200
+@@ -500,7 +500,7 @@ GC_API GC_PTR GC_malloc_atomic_ignore_of
+ #ifdef __linux__
+ # include <features.h>
+ # if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1 || __GLIBC__ > 2) \
+-     && !defined(__ia64__)
++     && !defined(__ia64__) && !defined(__UCLIBC__)
+ #   ifndef GC_HAVE_BUILTIN_BACKTRACE
+ #     define GC_HAVE_BUILTIN_BACKTRACE
+ #   endif
diff --git a/package/mono/mono-002-support-uclibc-musl.patch b/package/mono/mono-002-support-uclibc-musl.patch
new file mode 100644
index 0000000..48a3493
--- /dev/null
+++ b/package/mono/mono-002-support-uclibc-musl.patch
@@ -0,0 +1,25 @@
+Adjust libc.so path depending on C library being used
+
+By default, on Linux systems, Mono assumes that the C library is
+libc.so.6. While this is true for glibc, it is not true for uClibc and
+Musl based systems. This patch adds support for such systems.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+
+Index: b/configure.ac
+===================================================================
+--- a/configure.ac
++++ b/configure.ac
+@@ -2973,6 +2973,12 @@
+         SQLITE="libsqlite.so"
+         SQLITE3="libsqlite3.so"
+ 	;;
++    *-*-*uclibc*)
++	LIBC="libc.so.0"
++	;;
++    *-*-*musl*)
++	LIBC="libc.so"
++	;;
+     *-*-*linux*)
+ 	AC_PATH_X
+ 	dlsearch_path=`(libtool --config ; echo eval echo \\$sys_lib_dlsearch_path_spec) | sh`
diff --git a/package/mono/mono.mk b/package/mono/mono.mk
new file mode 100644
index 0000000..621ad96
--- /dev/null
+++ b/package/mono/mono.mk
@@ -0,0 +1,74 @@
+#############################################################
+#
+# mono
+#
+#############################################################
+
+MONO_VERSION = 3.10.0
+MONO_SITE = http://download.mono-project.com/sources/mono/
+MONO_SOURCE = mono-$(MONO_VERSION).tar.bz2
+MONO_LICENSE = Dual license LGPL, commercial
+MONO_LICENSE_FILES = LICENSE
+MONO_INSTALL_STAGING = YES
+
+# patching configure.ac
+MONO_AUTORECONF = YES
+
+# Disable managed code (mcs folder) from building
+MONO_CONF_OPTS = --disable-gtk-doc \
+	--with-mcs-docs=no \
+	--with-moonlight=no \
+	--disable-libraries \
+	--with-ikvm-native=no \
+	--enable-minimal=aot,profiler,debug \
+	--disable-mcs-build
+
+ifeq ($(BR2_PACKAGE_MONO_20),y)
+	ASSEMBLY_INCLUDED += $(HOST_DIR)/usr/lib/mono/2.0
+endif
+
+ifeq ($(BR2_PACKAGE_MONO_35),y)
+	ASSEMBLY_INCLUDED += $(HOST_DIR)/usr/lib/mono/3.5
+endif
+
+ifeq ($(BR2_PACKAGE_MONO_40),y)
+	ASSEMBLY_INCLUDED += $(HOST_DIR)/usr/lib/mono/4.0
+endif
+
+ifeq ($(BR2_PACKAGE_MONO_45),y)
+	ASSEMBLY_INCLUDED += $(HOST_DIR)/usr/lib/mono/4.5
+endif
+
+ifneq ($(ASSEMBLY_INCLUDED),)
+define MONO_INSTALL_LIBS
+		rsync -av --exclude=*.so --exclude=*.mdb --exclude=[0-9].[0-9] \
+			$(HOST_DIR)/usr/lib/mono $(TARGET_DIR)/usr/lib/
+		rsync -av --exclude=*.so --exclude=*.mdb $(ASSEMBLY_INCLUDED) \
+			$(TARGET_DIR)/usr/lib/mono/
+endef
+MONO_DEPENDENCIES += host-mono
+MONO_POST_INSTALL_TARGET_HOOKS += MONO_INSTALL_LIBS
+endif
+
+HOST_MONO_CONF_OPTS = --disable-gtk-doc \
+	--with-mcs-docs=no \
+	--with-moonlight=no \
+	--disable-libraries \
+	--with-ikvm-native=no \
+	--enable-minimal=aot,profiler,debug \
+	--enable-static
+
+HOST_MONO_DEPENDENCIES = host-monolite
+
+define HOST_MONO_SETUP_MONOLITE
+	rm -rf $(@D)/mcs/class/lib/monolite
+	(cd $(@D)/mcs/class/lib; ln -s $(HOST_DIR)/usr/lib/monolite monolite)
+endef
+
+HOST_MONO_POST_CONFIGURE_HOOKS += HOST_MONO_SETUP_MONOLITE
+
+$(eval $(autotools-package))
+
+ifneq ($(ASSEMBLY_INCLUDED),)
+$(eval $(host-autotools-package))
+endif
-- 
1.7.9.5

[Buildroot] [PATCH 2/2] package/mono: new package

[Thomas Petazzoni]

Dear Angelo Compagnucci,

On Sun, 12 Oct 2014 09:50:08 +0200, Angelo Compagnucci wrote:

> +config BR2_PACKAGE_MONO
> +	bool "mono"
> +	select BR2_STRIP_none

Why ? This is not acceptable in a package.

> +	depends on BR2_PACKAGE_MONO_ARCH_SUPPORTS
> +	depends on BR2_INET_IPV6
> +	help
> +	  An open source, cross-platform, implementation of C#
> +	  and the CLR that is binary compatible with Microsoft.NET.
> +
> +	  http://download.mono-project.com/sources/mono/
> +
> +if BR2_PACKAGE_MONO

One empty new line here.

> +	config BR2_PACKAGE_MONO_20

No indentation here.

> +		bool "2.0 .Net Runtime"
> +		help
> +		  Version 2.0 of Mono .Net runtime

Empty new line here as well.

> +	config BR2_PACKAGE_MONO_35
> +		bool "3.5 .Net Runtime"
> +		help
> +		  Version 3.0 of Mono .Net runtime

Help text doesn't match the prompt.

> +	config BR2_PACKAGE_MONO_40
> +		bool "4.0 .Net Runtime"
> +		help
> +		  Version 4.0 of Mono .Net runtime
> +	config BR2_PACKAGE_MONO_45
> +		default y
> +		bool "4.5 .Net Runtime"
> +		help
> +		  Version 4.5 of Mono .Net runtime

The help texts are useless. So either remove them, or make them a
little bit more useful, like "This option enables the installation of
the 4.5 version of the Mono .Net runtime to the target".

Also, please enable by default one of the runtime versions, so that at
least by default, things work.

> diff --git a/package/mono/mono-001-gc-fix-uclibc.patch b/package/mono/mono-001-gc-fix-uclibc.patch
> new file mode 100644
> index 0000000..951d568
> --- /dev/null
> +++ b/package/mono/mono-001-gc-fix-uclibc.patch
> @@ -0,0 +1,16 @@
> +Disable backtrace on not supprted uclibc.

Typo: supported

> diff --git a/package/mono/mono.mk b/package/mono/mono.mk
> new file mode 100644
> index 0000000..621ad96
> --- /dev/null
> +++ b/package/mono/mono.mk
> @@ -0,0 +1,74 @@
> +#############################################################
> +#
> +# mono
> +#
> +#############################################################
> +
> +MONO_VERSION = 3.10.0
> +MONO_SITE = http://download.mono-project.com/sources/mono/
> +MONO_SOURCE = mono-$(MONO_VERSION).tar.bz2
> +MONO_LICENSE = Dual license LGPL, commercial

Which version of the LGPL ?

Also, it should be:

MONO_LICENSE = LGPLvX or commecial

> +ifeq ($(BR2_PACKAGE_MONO_20),y)
> +	ASSEMBLY_INCLUDED += $(HOST_DIR)/usr/lib/mono/2.0
> +endif
> +
> +ifeq ($(BR2_PACKAGE_MONO_35),y)
> +	ASSEMBLY_INCLUDED += $(HOST_DIR)/usr/lib/mono/3.5
> +endif
> +
> +ifeq ($(BR2_PACKAGE_MONO_40),y)
> +	ASSEMBLY_INCLUDED += $(HOST_DIR)/usr/lib/mono/4.0
> +endif
> +
> +ifeq ($(BR2_PACKAGE_MONO_45),y)
> +	ASSEMBLY_INCLUDED += $(HOST_DIR)/usr/lib/mono/4.5
> +endif

Using a variable like ASSEMBLY_INCLUDED is not good. Remember that the
namespace of variables is global in Buildroot, so all variables defined
by a package should *always* be prefixed by the package name. In this
case MONO_.

That being said, are you sure this dance is really needed? There are
some configure options to Mono to enable or disable the various
versions of the runtime.

> +ifneq ($(ASSEMBLY_INCLUDED),)
> +$(eval $(host-autotools-package))
> +endif

Conditional not needed. I think we should ensure at least one runtime
version is enabled.

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

[Buildroot] [PATCH 2/2] package/mono: new package

[Angelo Compagnucci]

Hi Thomas,

> That being said, are you sure this dance is really needed? There are
> some configure options to Mono to enable or disable the various
> versions of the runtime.

Yes, you are right, but changing runtime version means you have to
recompile a lot of things. This way, you compile at first and simply
removing .stap_target_installed, you can have free a new mono runtime
version!
If you think that it necessary to have them disabled at compile time,
I'll do it!

>
>> +ifneq ($(ASSEMBLY_INCLUDED),)
>> +$(eval $(host-autotools-package))
>> +endif
>
> Conditional not needed. I think we should ensure at least one runtime
> version is enabled.

That's not always true. There is ways in mono to "freeze" the
assemblies your application requires, so only the mono vm is required.
Moreover, you can write an application that ships required assemblies
in your project folder and not using the system wide installed.
I think that having an option to only compile the vm is good!

Thank you again for your time!

>
> Thomas
> --
> Thomas Petazzoni, CTO, Free Electrons
> Embedded Linux, Kernel and Android engineering
> http://free-electrons.com



-- 
Profile: http://it.linkedin.com/in/compagnucciangelo

[Buildroot] [PATCH 2/2] package/mono: new package

[Thomas Petazzoni]

Dear Angelo Compagnucci,

On Sun, 12 Oct 2014 10:44:21 +0200, Angelo Compagnucci wrote:

> Yes, you are right, but changing runtime version means you have to
> recompile a lot of things. This way, you compile at first and simply
> removing .stap_target_installed, you can have free a new mono runtime
> version!
> If you think that it necessary to have them disabled at compile time,
> I'll do it!

Yes, please, that's how we do things for all packages: if a configure
option is there to not build something that is actually disabled in the
Buildroot configuration, then we use that.

> >> +ifneq ($(ASSEMBLY_INCLUDED),)
> >> +$(eval $(host-autotools-package))
> >> +endif
> >
> > Conditional not needed. I think we should ensure at least one runtime
> > version is enabled.
> 
> That's not always true. There is ways in mono to "freeze" the
> assemblies your application requires, so only the mono vm is required.
> Moreover, you can write an application that ships required assemblies
> in your project folder and not using the system wide installed.
> I think that having an option to only compile the vm is good!

Then, the conditional shouldn't be here, but around the dependency of
mono on host-mono.

That being said, I would recommend you to keep things simple for now,
and handle only this use case as a follow-up contribution.

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

[Buildroot] [PATCH 2/2] package/mono: new package

[Angelo Compagnucci]

Hi Thomas!

2014-10-12 11:02 GMT+02:00 Thomas Petazzoni
<thomas.petazzoni@free-electrons.com>:
> Dear Angelo Compagnucci,
>
> Yes, please, that's how we do things for all packages: if a configure
> option is there to not build something that is actually disabled in the
> Buildroot configuration, then we use that.

Ok!

> Then, the conditional shouldn't be here, but around the dependency of
> mono on host-mono.
>
> That being said, I would recommend you to keep things simple for now,
> and handle only this use case as a follow-up contribution.

It is already:

ifneq ($(MONO_ASSEMBLY_INCLUDED),)
define MONO_INSTALL_LIBS
rsync -av --exclude=*.so --exclude=*.mdb --exclude=[0-9].[0-9] \
$(HOST_DIR)/usr/lib/mono $(TARGET_DIR)/usr/lib/
rsync -av --exclude=*.so --exclude=*.mdb $(MONO_ASSEMBLY_INCLUDED) \
$(TARGET_DIR)/usr/lib/mono/
endef
MONO_DEPENDENCIES += host-mono
MONO_POST_INSTALL_TARGET_HOOKS += MONO_INSTALL_LIBS
endif

This way the dependency is met only when MONO_ASSEMBLY_INCLUDED.
By the way, I'll remove this logic, make 4.5 as default version and if
nothing selected, I'll default evenly on 4.5.

Thank you for your time!

>
> Thomas
> --
> Thomas Petazzoni, CTO, Free Electrons
> Embedded Linux, Kernel and Android engineering
> http://free-electrons.com



-- 
Profile: http://it.linkedin.com/in/compagnucciangelo

[Buildroot] [PATCH 2/2] package/mono: new package

[Thomas Petazzoni]

Dear Angelo Compagnucci,

On Sun, 12 Oct 2014 11:21:20 +0200, Angelo Compagnucci wrote:

> > Then, the conditional shouldn't be here, but around the dependency of
> > mono on host-mono.
> >
> > That being said, I would recommend you to keep things simple for now,
> > and handle only this use case as a follow-up contribution.
> 
> It is already:
> 
> ifneq ($(MONO_ASSEMBLY_INCLUDED),)
> define MONO_INSTALL_LIBS
> rsync -av --exclude=*.so --exclude=*.mdb --exclude=[0-9].[0-9] \
> $(HOST_DIR)/usr/lib/mono $(TARGET_DIR)/usr/lib/
> rsync -av --exclude=*.so --exclude=*.mdb $(MONO_ASSEMBLY_INCLUDED) \
> $(TARGET_DIR)/usr/lib/mono/
> endef
> MONO_DEPENDENCIES += host-mono
> MONO_POST_INSTALL_TARGET_HOOKS += MONO_INSTALL_LIBS
> endif
> 
> This way the dependency is met only when MONO_ASSEMBLY_INCLUDED.
> By the way, I'll remove this logic, make 4.5 as default version and if
> nothing selected, I'll default evenly on 4.5.

Ok, right. Then don't add a condition around the host-autotools-package
call, this is useless.

Thanks,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

[Buildroot] [PATCH 2/2] package/mono: new package

[Angelo Compagnucci]

Hi Thomas!

>> It is already:
>>
>> ifneq ($(MONO_ASSEMBLY_INCLUDED),)
>> define MONO_INSTALL_LIBS
>> rsync -av --exclude=*.so --exclude=*.mdb --exclude=[0-9].[0-9] \
>> $(HOST_DIR)/usr/lib/mono $(TARGET_DIR)/usr/lib/
>> rsync -av --exclude=*.so --exclude=*.mdb $(MONO_ASSEMBLY_INCLUDED) \
>> $(TARGET_DIR)/usr/lib/mono/
>> endef
>> MONO_DEPENDENCIES += host-mono
>> MONO_POST_INSTALL_TARGET_HOOKS += MONO_INSTALL_LIBS
>> endif
>>
>> This way the dependency is met only when MONO_ASSEMBLY_INCLUDED.
>> By the way, I'll remove this logic, make 4.5 as default version and if
>> nothing selected, I'll default evenly on 4.5.
>
> Ok, right. Then don't add a condition around the host-autotools-package
> call, this is useless.

OK! So it the end I can keep that logic? I think it's valuable!
Obviously I can add a note on Config help.

>
> Thanks,
>
> Thomas
> --
> Thomas Petazzoni, CTO, Free Electrons
> Embedded Linux, Kernel and Android engineering
> http://free-electrons.com



-- 
Profile: http://it.linkedin.com/in/compagnucciangelo

[Buildroot] [PATCH 2/2] package/mono: new package

[Thomas Petazzoni]

Dear Angelo Compagnucci,

On Sun, 12 Oct 2014 12:06:35 +0200, Angelo Compagnucci wrote:

> >> This way the dependency is met only when MONO_ASSEMBLY_INCLUDED.
> >> By the way, I'll remove this logic, make 4.5 as default version and if
> >> nothing selected, I'll default evenly on 4.5.
> >
> > Ok, right. Then don't add a condition around the host-autotools-package
> > call, this is useless.
> 
> OK! So it the end I can keep that logic? I think it's valuable!
> Obviously I can add a note on Config help.

 * You should make sure one of the Runtime version is enabled by
   default by adding a 'default y'

 * You should use the configure options of Mono to enable/disable the
   appropriate runtime versions, which will remove the need for this
   MONO_ASSEMBLY_INCLUDED variable.

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

[Buildroot] [PATCH 2/2] package/mono: new package

[Angelo Compagnucci]

Hi Thomas,

2014-10-12 10:25 GMT+02:00 Thomas Petazzoni
<thomas.petazzoni@free-electrons.com>:
>
> Which version of the LGPL ?
>
> Also, it should be:
>
> MONO_LICENSE = LGPLvX or commecial

Here an excerpt from mono license file:

" This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation."

License version is not expressed, probably this imply "or at any other
version" clause, but I don't know well. Any hint?

Thank you!

-- 
Profile: http://it.linkedin.com/in/compagnucciangelo

[Buildroot] [PATCH 2/2] package/mono: new package

[Thomas Petazzoni]

Dear Angelo Compagnucci,

On Sun, 12 Oct 2014 10:59:43 +0200, Angelo Compagnucci wrote:

> Here an excerpt from mono license file:
> 
> " This library is free software; you can redistribute it and/or
>     modify it under the terms of the GNU Library General Public
>     License as published by the Free Software Foundation."
> 
> License version is not expressed, probably this imply "or at any other
> version" clause, but I don't know well. Any hint?

You need to look at the source files themselves to see which version of
the license is used, and whether the "or later" option is used or not.

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com