configure.ac

   1 AC_INIT([libpthread-stubs],
   2         0.3,
   3         [xcb@lists.freedesktop.org])
   4 AC_CONFIG_SRCDIR([pthread-stubs.pc.in])
   5 AM_INIT_AUTOMAKE([foreign dist-bzip2])
   6
   7 AC_CONFIG_HEADERS([config.h])
   8
   9 AC_PROG_LIBTOOL
  10 AC_PROG_CC
  11
  12
  13 dnl Detection code for compilers supporting the __attribute__((weak, alias))
  14 dnl feature. Original code present in unieject's repository
  15 dnl Diego Pettenò <flameeyes@gentoo.org>
  16 ac_save_CFLAGS="$CFLAGS"
  17 CFLAGS="$CFLAGS -Werror"
  18 AC_CACHE_CHECK([if compiler supports __attribute__((weak, alias))],
  19         [cc_cv_attribute_alias],
  20         [AC_COMPILE_IFELSE([
  21                 void other_function(void *foo) { }
  22                 void some_function(void *foo) __attribute__((weak, alias("other_function")));
  23                 ],
  24                 [cc_cv_attribute_alias=yes],
  25                 [cc_cv_attribute_alias=no])
  26         ])
  27 CFLAGS="$ac_save_CFLAGS"
  28 if test "x$cc_cv_attribute_alias" = "xyes"; then
  29         AC_DEFINE([SUPPORT_ATTRIBUTE_ALIAS], 1, [Define this if the compiler supports the alias attribute])
  30 fi
  31
  32
  33 PKG_CONFIG_LIBS=
  34 AC_CHECK_FUNCS([pthread_self pthread_mutex_init pthread_mutex_destroy pthread_mutex_lock pthread_mutex_unlock pthread_cond_init pthread_cond_destroy pthread_condattr_init pthread_condattr_destroy pthread_cond_wait pthread_cond_timedwait pthread_cond_signal pthread_cond_broadcast pthread_equal pthread_exit],
  35                [], [PKG_CONFIG_LIBS='-L${libdir} -lpthread-stubs'])
  36 AC_SUBST([PKG_CONFIG_LIBS])
  37 AM_CONDITIONAL(BUILD_LIB, test "x$PKG_CONFIG_LIBS" != x)
  38
  39 AC_CONFIG_FILES([Makefile pthread-stubs.pc])
  40 AC_OUTPUT