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dnl GNOME_X_CHECKS
dnl
dnl Basic X11 related checks for X11. At the end, the following will be
dnl defined/changed:
dnl x_{includes,libraries} From AC_PATH_X
dnl X_{CFLAGS,LIBS} From AC_PATH_XTRA
dnl X_{PRE,EXTRA}_LIBS - do -
dnl x_libs Essentially $X_PRE_LIBS -lX11 -Xext $X_EXTRA_LIBS
dnl CPPFLAGS Will include $X_CFLAGS
dnl GNOME_HAVE_SM `true' or `false' depending of if -lSM is present
dnl
dnl The following configure cache variables are defined (but not used):
dnl gnome_cv_passdown_{x_libs,X_LIBS,X_CFLAGS}
dnl
AC_DEFUN([GNOME_X_CHECKS],
[
AC_PATH_X
AC_PATH_XTRA
saved_ldflags="$LDFLAGS"
LDFLAGS="$X_LDFLAGS $X_LIBS"
dnl Hope that X_CFLAGS have only -I and -D. Otherwise, we could
dnl test -z "$x_includes" || CPPFLAGS="$CPPFLAGS -I$x_includes"
dnl
dnl Use CPPFLAGS instead of CFLAGS because AC_CHECK_HEADERS uses
dnl CPPFLAGS, not CFLAGS
CPPFLAGS="$CPPFLAGS $X_CFLAGS"
dnl Checks for libraries.
AC_CHECK_LIB(X11, XOpenDisplay,
x_libs="$X_PRE_LIBS -lX11"
[AC_MSG_ERROR(No X11 installed)],
$X_EXTRA_LIBS)
AC_SUBST(x_libs)
LDFLAGS="$saved_ldflags $X_LDFLAGS $X_LIBS $x_libs"
AC_CHECK_LIB(Xext, XShmAttach,
x_libs="$x_libs -lXext", ,
$x_libs $X_EXTRA_LIBS)
x_libs="$x_libs $X_EXTRA_LIBS"
gnome_cv_passdown_x_libs="$x_libs"
gnome_cv_passdown_X_LIBS="$X_LIBS"
gnome_cv_passdown_X_CFLAGS="$X_CFLAGS"
LDFLAGS="$saved_ldflags $X_LDFLAGS $X_LIBS"
GNOME_HAVE_SM=true
case "$x_libs" in
*-lSM*)
dnl Already found it.
AC_DEFINE(HAVE_LIBSM)
;;
*)
dnl Assume that if we have -lSM then we also have -lICE.
AC_CHECK_LIB(SM, SmcSaveYourselfDone,
[AC_DEFINE(HAVE_LIBSM)
x_libs="$x_libs -lSM -lICE"],GNOME_HAVE_SM=false,
$x_libs -lICE)
;;
esac
AC_CHECK_LIB(gtk, gdk_pixmap_unref,
GTK_LIBS="-lgtk -lgdk -lglib -lm",
[AC_MSG_ERROR(Can not find a Gtk 0.99.1, probably you have an older version?)],
-lgdk -lglib $x_libs -lm)
AC_SUBST(GTK_LIBS)
gnome_cv_passdown_GTK_LIBS="$GTK_LIBS"
XPM_LIBS=""
AC_CHECK_LIB(Xpm, XpmFreeXpmImage, [XPM_LIBS="-lXpm"], , $x_libs)
AC_SUBST(XPM_LIBS)
AC_REQUIRE([GNOME_PTHREAD_CHECK])
LDFLAGS="$saved_ldflags"
AC_PROVIDE([GNOME_X_CHECKS])
])
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