-dnl Copyright (C) 2008 Vincent Torri <vtorri at univ-evry dot fr>
+dnl Copyright (C) 2010 Vincent Torri <vtorri at univ-evry dot fr>
dnl That code is public domain and can be freely used or copied.
-dnl Macro that check if several ASM instruction sets are available or not.
+dnl Macro that check if several pthread library is available or not.
-dnl Usage: EFL_CHECK_EFL_CHECK_PTHREAD([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
-dnl Call AC_SUBST(EFL_PTHREAD_FLAGS)
+dnl Usage: EFL_CHECK_PTHREAD(want_pthread_spin[, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
+dnl Call AC_SUBST(EFL_PTHREAD_CFLAGS)
+dnl Call AC_SUBST(EFL_PTHREAD_LIBS)
dnl Define EFL_HAVE_PTHREAD
+dnl Define EFL_HAVE_PTHREAD_SPINLOCK
AC_DEFUN([EFL_CHECK_PTHREAD],
[
dnl configure option
AC_ARG_ENABLE([pthread],
- [AC_HELP_STRING([--disable-pthread], [enable POSIX threads code @<:@default=yes@:>@])],
+ [AC_HELP_STRING([--disable-pthread], [enable POSIX threads code @<:@default=auto@:>@])],
[
if test "x${enableval}" = "xyes" ; then
_efl_enable_pthread="yes"
_efl_enable_pthread="no"
fi
],
- [_efl_enable_pthread="yes"])
+ [_efl_enable_pthread="auto"])
AC_MSG_CHECKING([whether to build POSIX threads code])
AC_MSG_RESULT([${_efl_enable_pthread}])
_efl_have_pthread="no"
-if test "x${_efl_enable_pthread}" = "xyes" ; then
- AC_CHECK_HEADER(pthread.h,
+if test "x${_efl_enable_pthread}" = "xyes" || test "x${_efl_enable_pthread}" = "xauto" ; then
+
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([[
+#include <pthread.h>
+ ]],
+ [[
+pthread_t id;
+id = pthread_self();
+ ]])],
[_efl_have_pthread="yes"],
[_efl_have_pthread="no"])
+
fi
AC_MSG_CHECKING([whether system support POSIX threads])
-AC_MSG_RESULT([${_efl_enable_pthread}])
+AC_MSG_RESULT([${_efl_have_pthread}])
+if test "$x{_efl_enable_pthread}" = "xyes" && test "x${_efl_have_pthread}" = "xno"; then
+ AC_MSG_ERROR([pthread support requested but not found.])
+fi
if test "x${_efl_have_pthread}" = "xyes" ; then
case "$host_os" in
mingw*)
- EFL_PTHREAD_CFLAGS="-mthreads"
- EFL_PTHREAD_LIBS="-mthreads -lpthreadGC2"
+ EFL_PTHREAD_CFLAGS=""
+ EFL_PTHREAD_LIBS="-lpthreadGC2"
;;
solaris*)
EFL_PTHREAD_CFLAGS="-mt"
AC_DEFINE(EFL_HAVE_PTHREAD, 1, [Define to mention that POSIX threads are supported])
fi
-if test "x${_efl_have_pthread}" = "xyes" ; then
- ifelse([$1], , :, [$1])
-else
- ifelse([$2], , :, [$2])
+dnl check if the compiler supports pthreads spinlock
+
+_efl_have_pthread_spinlock="no"
+
+if test "x${_efl_have_pthread}" = "xyes" && test "x$1" = "xyes" ; then
+
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([[
+#include <pthread.h>
+ ]],
+ [[
+pthread_spinlock_t lock;
+int res;
+res = pthread_spin_init(&lock, PTHREAD_PROCESS_PRIVATE);
+ ]])],
+ [_efl_have_pthread_spinlock="yes"],
+ [_efl_have_pthread_spinlock="no"])
+
+fi
+
+AC_MSG_CHECKING([whether to build POSIX threads spinlock code])
+AC_MSG_RESULT([${_efl_have_pthread_spinlock}])
+if test "$x{_efl_enable_pthread}" = "xyes" && test "x${_efl_have_pthread_spinlock}" = "xno"; then
+ AC_MSG_ERROR([pthread support requested but spinlocks are not supported])
fi
+
+if test "x${_efl_have_pthread_spinlock}" = "xyes" ; then
+ AC_DEFINE(EFL_HAVE_PTHREAD_SPINLOCK, 1, [Define to mention that POSIX threads spinlocks are supported])
+fi
+
+AS_IF([test "x$_efl_have_pthread" = "xyes"], [$2], [$3])
+AS_IF([test "x$_efl_have_pthread_spinlock" = "xyes"], [$4], [$5])
+
])