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efl: let's try to detect in a portable way phtread around the world. 

Linking to Pthread seems to be highly not portable. Look at lock.m4
macro if you want to understand the hell it is ! By following it
closely we should now have better portability than the 1.7.x release.
And of course than our alpha...
This commit is contained in:
Cedric Bail 2013-11-12 16:06:22 +09:00
parent d2ff8d70a5
commit 2a29732e07
1 changed files with 24 additions and 32 deletions
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56
m4/efl_threads.m4
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@ -17,49 +17,40 @@ dnl Generic thread detection
EFL_PTHREAD_CFLAGS=""
EFL_PTHREAD_LIBS=""
_efl_enable_posix_threads="no"
_efl_have_posix_threads="no"
_efl_have_win32_threads="no"
dnl Use generic infrastructure for pthread detection (What a hell of a mess !)
gl_LOCK
AC_DEFINE([EFL_HAVE_THREADS], [1], [Define to mention that POSIX or Win32 threads are supported])
case "$host_os" in
mingw*)
_efl_have_win32_threads="yes"
efl_have_setaffinity="yes"
AC_DEFINE([EFL_HAVE_WIN32_THREADS], [1], [Define to mention that Win32 threads are supported])
AC_DEFINE([EFL_HAVE_THREADS], [1], [Define to mention that POSIX or Win32 threads are supported])
;;
*)
_efl_enable_posix_threads="yes"
_efl_threads_cflags="-D_REENTRANT"
_efl_threads_libs="-lpthread"
_efl_have_posix_threads="${gl_use_threads}"
AC_DEFINE([EFL_HAVE_POSIX_THREADS], [1], [Define to mention that POSIX threads are supported])
;;
esac
dnl System specific CFLAGS
if test "x${_efl_have_posix_threads}" = "xyes"; then
case "$host_os" in
osf*) EFL_PTHREAD_CFLAGS="-D_REENTRANT" ;;
aix* | freebsd*) EFL_PTHREAD_CFLAGS="-D_THREAD_SAFE" ;;
solaris*) EFL_PTHREAD_CFLAGS="-D_REENTRANT" ;;
esac
fi
dnl check if the compiler supports POSIX threads
if test "x${_efl_have_posix_threads}" = "xyes" ; then
if test "x${_efl_enable_posix_threads}" = "xyes" ; then
SAVE_CFLAGS=${CFLAGS}
CFLAGS="${CFLAGS} ${_efl_threads_cflags}"
SAVE_LIBS=${LIBS}
LIBS="${LIBS} ${_efl_threads_libs}"
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[
#include <pthread.h>
]],
[[
pthread_t id;
id = pthread_self();
]])],
[
_efl_have_posix_threads="yes"
AC_DEFINE([EFL_HAVE_POSIX_THREADS], [1], [Define to mention that POSIX threads are supported])
AC_DEFINE([EFL_HAVE_THREADS], [1], [Define to mention that POSIX or Win32 threads are supported])
EFL_PTHREAD_CFLAGS=${_efl_threads_cflags}
EFL_PTHREAD_LIBS=${_efl_threads_libs}
],
[_efl_have_posix_threads="no"])
LIBS="${LIBS} ${LIBMULTITHREAD}"
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[
#include <pthread.h>
@ -83,7 +74,6 @@ pthread_attr_setaffinity_np(NULL, 0, NULL);
[efl_have_setaffinity="no"])
CFLAGS=${SAVE_CFLAGS}
LIBS=${SAVE_LIBS}
fi
AC_MSG_CHECKING([which threads API is used])
@ -100,6 +90,8 @@ else
fi
AC_MSG_RESULT([${efl_have_threads}])
EFL_PTHREAD_LIBS="${LTLIBMULTITHREAD}"
AC_SUBST(EFL_PTHREAD_CFLAGS)
AC_SUBST(EFL_PTHREAD_LIBS)
@ -108,11 +100,8 @@ dnl check if the compiler supports pthreads spinlock
efl_have_posix_threads_spinlock="no"
if test "x${_efl_have_posix_threads}" = "xyes" ; then
SAVE_CFLAGS=${CFLAGS}
CFLAGS="${CFLAGS} ${EFL_PTHREAD_CFLAGS}"
SAVE_LIBS=${LIBS}
LIBS="${LIBS} ${EFL_PTHREAD_LIBS}"
LIBS="${LIBS} ${LIBMULTITHREAD}"
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[
#include <pthread.h>
@ -138,6 +127,9 @@ if test "x${efl_have_posix_threads_spinlock}" = "xyes" ; then
AC_DEFINE([EFL_HAVE_POSIX_THREADS_SPINLOCK], [1], [Define to mention that POSIX threads spinlocks are supported])
fi
echo "_efl_have_posix_threads: ${_efl_have_posix_threads}"
echo "_efl_have_win32_threads: ${_efl_have_win32_threads}"
AS_IF([test "x$_efl_have_posix_threads" = "xyes" || test "x$_efl_have_win32_threads" = "xyes"],
[$1],
[m4_if([$2], [$2], [AC_MSG_ERROR([Threads are required.])])])