m4.include/ac-g-module-supported.m4

   1 dnl
   2 dnl Check whether the g_module_* family of functions works
   3 dnl on this system.  We need to know that at the compile time to
   4 dnl decide whether to link with X11.
   5 dnl
   6 AC_DEFUN([AC_G_MODULE_SUPPORTED], [
   7
   8     g_module_supported=""
   9     if test x"$no_x" = xyes; then
  10         textmode_x11_support="no"
  11     else
  12         found_gmodule=no
  13         PKG_CHECK_MODULES(GMODULE, [gmodule-no-export-2.0 >= 2.8], [found_gmodule=yes], [:])
  14         if test x"$found_gmodule" = xyes; then
  15             g_module_supported="gmodule-no-export-2.0"
  16         else
  17             dnl try fallback to the generic gmodule
  18             PKG_CHECK_MODULES(GMODULE, [gmodule-2.0 >= 2.8], [found_gmodule=yes], [:])
  19             if test x"$found_gmodule" = xyes; then
  20                 g_module_supported="gmodule-2.0"
  21             fi
  22         fi
  23
  24         CPPFLAGS="$CPPFLAGS $X_CFLAGS"
  25         case x"$g_module_supported" in
  26             xgmodule-no-export-2.0|xgmodule-2.0)
  27                 if test x`$PKG_CONFIG --variable=gmodule_supported "$g_module_supported"` = xtrue; then
  28                     AC_DEFINE([HAVE_GMODULE], [1], [Defined if gmodule functionality is supported])
  29                 else
  30                     g_module_supported=""
  31                 fi
  32                 ;;
  33             *)
  34                 MCLIBS="$X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
  35                 g_module_supported=""
  36                 ;;
  37         esac
  38
  39         AC_DEFINE([HAVE_TEXTMODE_X11_SUPPORT], [1],
  40                         [Define to enable getting events from X Window System])
  41         textmode_x11_support="yes"
  42     fi
  43
  44     AM_CONDITIONAL([HAVE_GMODULE], [test x"$g_module_supported" != x])
  45 ])