Play nicely with Autoconf 2.68

[disorder] / acinclude.m4

diff --git a/acinclude.m4 b/acinclude.m4
index 6df1aa39b4048130b4dacf642f1547e45939a760..5ab86727bf3fc512afe005b2c8847ec5d3c67f90 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -17,9 +17,9 @@
 
 AC_DEFUN([RJK_FIND_GC_H],[
   AC_CACHE_CHECK([looking for <gc.h>],[rjk_cv_gc_h],[
-    AC_PREPROC_IFELSE([
+    AC_PREPROC_IFELSE([AC_LANG_PROGRAM([
                       #include <gc.h>
-                     ],
+                     ],[])],
                      [rjk_cv_gc_h="on default include path"],[
       oldCPPFLAGS="${CPPFLAGS}"
       for dir in /usr/include/gc /usr/local/include/gc; do
@@ -28,9 +28,9 @@ AC_DEFUN([RJK_FIND_GC_H],[
        else
          CPPFLAGS="${oldCPPFLAGS} -I$dir"
        fi
-       AC_PREPROC_IFELSE([
+       AC_PREPROC_IFELSE([AC_LANG_PROGRAM([
                           #include <gc.h>
-                         ],
+                         ],[])],
                          [rjk_cv_gc_h=$dir;break],[rjk_cv_gc_h="not found"])
       done
       CPPFLAGS="${oldCPPFLAGS}"