Specifically check for X11/extensions/sync.h

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/trunk@39197 72102866-910b-0410-8b05-ffd578937521

config.h.in

@@ -53,9 +53,6 @@
 /* Define to 1 if you have the `Xt' library (-lXt). */
 #undef HAVE_LIBXT
 
-/* Define to 1 if you have the `shape' extension. */
-#undef HAVE_XSHAPE
-
 /* Define to 1 if you have the <memory.h> header file. */
 #undef HAVE_MEMORY_H
 
@@ -98,6 +95,12 @@
 /* Define if you have the wgl library */
 #undef HAVE_WGL
 
+/* Define to 1 if you have the <X11/extensions/shape.h> header file. */
+#undef HAVE_X11_EXTENSIONS_SHAPE_H
+
+/* Define to 1 if you have the <X11/extensions/sync.h> header file. */
+#undef HAVE_X11_EXTENSIONS_SYNC_H
+
 /* Define to 1 if you have the <X11/extensions/XShm.h> header file. */
 #undef HAVE_X11_EXTENSIONS_XSHM_H
 
@@ -114,6 +117,9 @@
 /* Define to 1 if you have 'XInternAtoms' function. */
 #undef HAVE_XINTERNATOMS
 
+/* Define to enable Xshape support */
+#undef HAVE_XSHAPE
+
 /* Define to 1 if you have the `Xutf8LookupString' function. */
 #undef HAVE_XUTF8LOOKUPSTRING
 

configure

@@ -4932,6 +4932,22 @@ fi
 
   fi
 
+  for ac_header in X11/extensions/sync.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "X11/extensions/sync.h" "ac_cv_header_X11_extensions_sync_h" "#include <X11/X.h>
+   #include <X11/Xutil.h>
+
+"
+if test "x$ac_cv_header_X11_extensions_sync_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_X11_EXTENSIONS_SYNC_H 1
+_ACEOF
+
+fi
+
+done
+
+
   LIBS="$X_LIBS $LIBS"
 fi
 

configure.ac

@@ -213,6 +213,11 @@ if test $set_x_paths = yes; then
     ,)
   fi
 
+  AC_CHECK_HEADERS(X11/extensions/sync.h,,,
+  [#include <X11/X.h>
+   #include <X11/Xutil.h>
+  ])
+
   LIBS="$X_LIBS $LIBS"
 fi
 AC_SUBST(X_PRE_LIBS)