(no commit message)

[imagemagick] / m4 / ax_c___attribute__.m4

diff --git a/m4/ax_c___attribute__.m4 b/m4/ax_c___attribute__.m4
index cf3d62bbdf4f516178bb78563b7a5a04e51bde42..25b7c93c62bcf3e676c0ea2ea754892aea6c1b7e 100644 (file)
--- a/m4/ax_c___attribute__.m4
+++ b/m4/ax_c___attribute__.m4
@@ -50,7 +50,7 @@ AC_DEFUN([AX_C___ATTRIBUTE__], [
     [AC_COMPILE_IFELSE(
       [AC_LANG_PROGRAM(
        [[#include <stdlib.h>
-         static void foo(void) __attribute__ ((unused));
+         static void foo(void) __attribute__ ((__unused__));
          static void
          foo(void) {
              exit(1);