[PATCH 1/2] menuconfig: optionally use pkg-config to detect ncurses libs

[PATCH 1/2] menuconfig: optionally use pkg-config to detect ncurses libs

[jlec]

From: Justin Lecher <jlec@gentoo.org>

When building ncurses with --with-termlib several symbols get moved from
libncurses.so to libtinfo.so. Thus when linking with libncurses.so, one
additionally needs to link with libtinfo.so.

The ncurses pkg-config module will be used to detect the necessary libs for
linking. If not available the old heuristic for detection of the ncurses libs
will be used.

Signed-off-by: Justin Lecher <jlec@gentoo.org>
---
 scripts/kconfig/lxdialog/check-lxdialog.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/scripts/kconfig/lxdialog/check-lxdialog.sh b/scripts/kconfig/lxdialog/check-lxdialog.sh
index 8078813..782d200 100644
--- a/scripts/kconfig/lxdialog/check-lxdialog.sh
+++ b/scripts/kconfig/lxdialog/check-lxdialog.sh
@@ -4,6 +4,8 @@
 # What library to link
 ldflags()
 {
+	pkg-config --libs ncursesw 2>/dev/null && exit
+	pkg-config --libs ncurses 2>/dev/null && exit
 	for ext in so a dll.a dylib ; do
 		for lib in ncursesw ncurses curses ; do
 			$cc -print-file-name=lib${lib}.${ext} | grep -q /
-- 
1.8.1.5

[pull request] Pull request for branch yem-kconfig-rc-fixes

[Yann E. MORIN]

Hello Michal, All!

Michal, please, pull to -rc-fixes, these two changes by Justin to fix
ncurses-based kconfig frontends (mconf & nconf) compilation on systems
where ncurses was built with a separate terminfo library.


The following changes since commit e3900e74f26fc924c8e9e2a922bd40369b0bb517:

  Merge branch 'kbuild/rc-fixes' into kbuild/kconfig (2013-02-25 21:51:57 +0100)

are available in the git repository at:

  git://gitorious.org/linux-kconfig/linux-kconfig.git yem-kconfig-rc-fixes

Justin Lecher (2):
      menuconfig: optionally use pkg-config to detect ncurses libs
      kconfig: optionally use pkg-config to detect ncurses libs

 scripts/kconfig/Makefile                   |    4 +++-
 scripts/kconfig/lxdialog/check-lxdialog.sh |    2 ++
 2 files changed, 5 insertions(+), 1 deletions(-)

Regards,
Yann E. MORIN

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
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'------------------------------^-------^------------------^--------------------'

[PATCH 1/2] menuconfig: optionally use pkg-config to detect ncurses libs

[Yann E. MORIN]

From: Justin Lecher <jlec@gentoo.org>

When building ncurses with --with-termlib several symbols get moved from
libncurses.so to libtinfo.so. Thus when linking with libncurses.so, one
additionally needs to link with libtinfo.so.

The ncurses pkg-config module will be used to detect the necessary libs for
linking. If not available the old heuristic for detection of the ncurses libs
will be used.

Signed-off-by: Justin Lecher <jlec@gentoo.org>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
 scripts/kconfig/lxdialog/check-lxdialog.sh |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/scripts/kconfig/lxdialog/check-lxdialog.sh b/scripts/kconfig/lxdialog/check-lxdialog.sh
index 8078813..782d200 100644
--- a/scripts/kconfig/lxdialog/check-lxdialog.sh
+++ b/scripts/kconfig/lxdialog/check-lxdialog.sh
@@ -4,6 +4,8 @@
 # What library to link
 ldflags()
 {
+	pkg-config --libs ncursesw 2>/dev/null && exit
+	pkg-config --libs ncurses 2>/dev/null && exit
 	for ext in so a dll.a dylib ; do
 		for lib in ncursesw ncurses curses ; do
 			$cc -print-file-name=lib${lib}.${ext} | grep -q /
-- 
1.7.2.5

[PATCH 2/2] kconfig: optionally use pkg-config to detect ncurses libs

[Yann E. MORIN]

From: Justin Lecher <jlec@gentoo.org>

When building ncurses with --with-termlib several symbols get moved from
libncurses.so to libtinfo.so. Thus when linking with libncurses.so, one
additionally needs to link with libtinfo.so.

The ncurses pkg-config module will be used to detect the necessary libs for
linking. If not available the old way of directly specifying libs will be
used.

Signed-off-by: Justin Lecher <jlec@gentoo.org>
[yann.morin.1998@free.fr: fix typo: '-ncurses' --> '-lncurses']
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
 scripts/kconfig/Makefile |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 231b475..844bc9d 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -219,7 +219,9 @@ HOSTCFLAGS_gconf.o	= `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \
 
 HOSTLOADLIBES_mconf   = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))
 
-HOSTLOADLIBES_nconf	= -lmenu -lpanel -lncurses
+HOSTLOADLIBES_nconf	= $(shell \
+				pkg-config --libs menu panel ncurses 2>/dev/null \
+				|| echo "-lmenu -lpanel -lncurses"  )
 $(obj)/qconf.o: $(obj)/.tmp_qtcheck
 
 ifeq ($(qconf-target),1)
-- 
1.7.2.5

Re: [pull request] Pull request for branch yem-kconfig-rc-fixes

[Yann E. MORIN]

Michal, All,

On Thursday 07 March 2013 Yann E. MORIN wrote:
> Michal, please, pull to -rc-fixes, these two changes by Justin to fix
> ncurses-based kconfig frontends (mconf & nconf) compilation on systems
> where ncurses was built with a separate terminfo library.

Ping? ;-)

Regards,
Yann E. MORIN.

-- 
.-----------------.--------------------.------------------.--------------------.
|  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.  |
'------------------------------^-------^------------------^--------------------'

Re: [PATCH 1/2] menuconfig: optionally use pkg-config to detect ncurses libs

[Michal Marek]

Dne 7.3.2013 19:20, Yann E. MORIN napsal(a):
> From: Justin Lecher <jlec@gentoo.org>
> 
> When building ncurses with --with-termlib several symbols get moved from
> libncurses.so to libtinfo.so. Thus when linking with libncurses.so, one
> additionally needs to link with libtinfo.so.
> 
> The ncurses pkg-config module will be used to detect the necessary libs for
> linking. If not available the old heuristic for detection of the ncurses libs
> will be used.
> 
> Signed-off-by: Justin Lecher <jlec@gentoo.org>
> Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
> ---
>  scripts/kconfig/lxdialog/check-lxdialog.sh |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/scripts/kconfig/lxdialog/check-lxdialog.sh b/scripts/kconfig/lxdialog/check-lxdialog.sh
> index 8078813..782d200 100644
> --- a/scripts/kconfig/lxdialog/check-lxdialog.sh
> +++ b/scripts/kconfig/lxdialog/check-lxdialog.sh
> @@ -4,6 +4,8 @@
>  # What library to link
>  ldflags()
>  {
> +	pkg-config --libs ncursesw 2>/dev/null && exit
> +	pkg-config --libs ncurses 2>/dev/null && exit
>  	for ext in so a dll.a dylib ; do
>  		for lib in ncursesw ncurses curses ; do

Do you also plan to use pkg-config in the ccflags function?

Thanks,
Michal

Re: [pull request] Pull request for branch yem-kconfig-rc-fixes

[Michal Marek]

Dne 18.3.2013 19:35, Yann E. MORIN napsal(a):
> Michal, All,
> 
> On Thursday 07 March 2013 Yann E. MORIN wrote:
>> Michal, please, pull to -rc-fixes, these two changes by Justin to fix
>> ncurses-based kconfig frontends (mconf & nconf) compilation on systems
>> where ncurses was built with a separate terminfo library.
> 
> Ping? ;-)

Merged, sorry.

Michal

Re: [PATCH 1/2] menuconfig: optionally use pkg-config to detect ncurses libs

[Yann E. MORIN]

Michal, All,

On Thursday 21 March 2013 Michal Marek wrote:
> Dne 7.3.2013 19:20, Yann E. MORIN napsal(a):
> > From: Justin Lecher <jlec@gentoo.org>
[--SNIP--]
> > diff --git a/scripts/kconfig/lxdialog/check-lxdialog.sh b/scripts/kconfig/lxdialog/check-lxdialog.sh
> > index 8078813..782d200 100644
> > --- a/scripts/kconfig/lxdialog/check-lxdialog.sh
> > +++ b/scripts/kconfig/lxdialog/check-lxdialog.sh
> > @@ -4,6 +4,8 @@
> >  # What library to link
> >  ldflags()
> >  {
> > +	pkg-config --libs ncursesw 2>/dev/null && exit
> > +	pkg-config --libs ncurses 2>/dev/null && exit
> >  	for ext in so a dll.a dylib ; do
> >  		for lib in ncursesw ncurses curses ; do
> 
> Do you also plan to use pkg-config in the ccflags function?

That was my intention to pursue Justin's work to the CFLAGS, but that is
not so simple for menuconfig as it is for the libs, as:

  - we need the name of the header to include: '-DCURSES_LOC="<path/ncurses.h>"'
    (where 'path' is a relative path) which we use as: #include CURSES_LOC
  - there is no way to get this info from pkg-config

So, I'll be working a bit more on this this WE, and see if I can come with
something meaningful and not too ugly. ;-)

Regards,
Yann E. MORIN.

-- 
.-----------------.--------------------.------------------.--------------------.
|  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.  |
'------------------------------^-------^------------------^--------------------'