[OE-core] Libtool external toolchain .la files

2013-03-11 Thread Matthieu CRAPET 
Dear all,

I have some issue regarding  Libtool and my external toolchain (located in /opt)
I've created a basic C++ (STL) library using autotools.

My configure.ac is very simple:
code
AC_PREREQ([2.60])
AC_INIT([exemple], [1.2.3], [t...@exemple.org])

AC_CONFIG_SRCDIR([Makefile.am])
AC_CANONICAL_HOST

AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE([foreign])

LT_PREREQ([2.4])
LT_INIT

dnl Check for progs
AC_PROG_CXX

AC_SUBST([LIBEXEMPLE_SO_VERSION], [1:2:3])

AC_OUTPUT([
Makefile
])
/code

Then I've made a basic OE recipe to build it:

code
SUMMARY = Libtool simple exemple
LICENSE = MIT
LIC_FILES_CHKSUM = \
file://${COREBASE}/LICENSE;md5=3f40d7994397109285ec7b81fdeb3b58 
\

file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420 \


PR = r1

SRC_URI = git://xx.xx.xx.xx/libexemple.git
SRCREV = HEAD
S = ${WORKDIR}/git

inherit autotools
/code

Works fine but resulting .la files (in libexemple-dev package) contains:

dependency_libs='/opt/...-linux-gnueabi/lib/libstdc++.la'

This is bad because if another program (using libtool) depends on libexample, 
libtool will search
libstdc++ in ${STAGING_DIR_HOST}/opt/...-linux-gnueabi/lib/libstdc++.la 
(instead of ${STAGING_DIR_HOST}/lib/libstdc++.la).
I would like that dependency_libs points to openembedded sysroot.

Note: Toolchain's .la files located in ${STAGING_DIR_HOST} are correct (and not 
referencing /opt).

I am wondering what is the best workaround for this. For now I've patched my 
recipe:

code
do_compile_prepend () {
cd ${S}
sed -i -e  
'/^compiler_lib_search_dirs=/s/.*/compiler_lib_search_dirs=/' 
${HOST_SYS}-libtool
sed -i -e  
'/^compiler_lib_search_path=/s/.*/compiler_lib_search_path=/' 
${HOST_SYS}-libtool
sed -i -e  
'/^sys_lib_search_path_spec=/s/.*/sys_lib_search_path_spec=/' 
${HOST_SYS}-libtool
}
/code

Ugly but works because libstdc++ can be found (using --sysroot argument). But 
dependency_libs is empty is .la file.

In real life: this is libglu and glew.

Regards,
Matthieu Crapet
PS: exemple is french word for example ;)
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Re: [OE-core] Libtool external toolchain .la files

2013-03-11 Thread Khem Raj 

On Mar 11, 2013, at 3:32 AM, Matthieu CRAPET matthieu.cra...@ingenico.com 
wrote:

 Dear all,
  
 I have some issue regarding  Libtool and my external toolchain (located in 
 /opt)
 I've created a basic C++ (STL) library using autotools.
  
 My configure.ac is very simple:
 code
 AC_PREREQ([2.60])
 AC_INIT([exemple], [1.2.3], [t...@exemple.org])
  
 AC_CONFIG_SRCDIR([Makefile.am])
 AC_CANONICAL_HOST
  
 AC_CONFIG_MACRO_DIR([m4])
 AM_INIT_AUTOMAKE([foreign])
  
 LT_PREREQ([2.4])
 LT_INIT
  
 dnl Check for progs
 AC_PROG_CXX
  
 AC_SUBST([LIBEXEMPLE_SO_VERSION], [1:2:3])
  
 AC_OUTPUT([
 Makefile
 ])
 /code
  
 Then I've made a basic OE recipe to build it:
  
 code
 SUMMARY = Libtool simple exemple
 LICENSE = MIT
 LIC_FILES_CHKSUM = \

 file://${COREBASE}/LICENSE;md5=3f40d7994397109285ec7b81fdeb3b58 \

 file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420 \
 
  
 PR = r1
  
 SRC_URI = git://xx.xx.xx.xx/libexemple.git
 SRCREV = HEAD
 S = ${WORKDIR}/git
  
 inherit autotools
 /code
  
 Works fine but resulting .la files (in libexemple-dev package) contains:
  
 dependency_libs='/opt/...-linux-gnueabi/lib/libstdc++.la'


somewhere I think lib tool is not honoring the sys root. Figure that out.

  
 This is bad because if another program (using libtool) depends on libexample, 
 libtool will search
 libstdc++ in ${STAGING_DIR_HOST}/opt/...-linux-gnueabi/lib/libstdc++.la 
 (instead of ${STAGING_DIR_HOST}/lib/libstdc++.la).
 I would like that dependency_libs points to openembedded sysroot.
  
 Note: Toolchain's .la files located in ${STAGING_DIR_HOST} are correct (and 
 not referencing /opt).
  
 I am wondering what is the best workaround for this. For now I’ve patched my 
 recipe:
  
 code
 do_compile_prepend () {
 cd ${S}
 sed -i -e  
 '/^compiler_lib_search_dirs=/s/.*/compiler_lib_search_dirs=/' 
 ${HOST_SYS}-libtool
 sed -i -e  
 '/^compiler_lib_search_path=/s/.*/compiler_lib_search_path=/' 
 ${HOST_SYS}-libtool
 sed -i -e  
 '/^sys_lib_search_path_spec=/s/.*/sys_lib_search_path_spec=/' 
 ${HOST_SYS}-libtool
 }
 /code
  
 Ugly but works because libstdc++ can be found (using --sysroot argument). But 
 dependency_libs is empty is .la file.
  
 In real life: this is libglu and glew.
  
 Regards,
 Matthieu Crapet
 PS: exemple is french word for example ;)
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