(AC_FUNC_STRERROR_R): Pass a reasonably large buffer to strerror_r.

diff --git a/m4/strerror_r.m4 b/m4/strerror_r.m4
index eab6916..1e57f27 100644 (file)
--- a/m4/strerror_r.m4
+++ b/m4/strerror_r.m4
@@ -1,4 +1,4 @@
-#serial 1000
+#serial 1001
 # Experimental replacement for the function in the latest CVS autoconf.
 # If the compile-test says strerror_r doesn't work, then resort to a
 # `run'-test that works on BeOS and segfaults on DEC Unix.
@@ -25,8 +25,8 @@ if test $ac_cv_func_strerror_r = yes; then
 #       endif
      ],
      [
-       char buf;
-       char x = *strerror_r (0, &buf, sizeof buf);
+       char buf[100];
+       char x = *strerror_r (0, buf, sizeof buf);
      ],
      ac_cv_func_strerror_r_works=yes,
      ac_cv_func_strerror_r_works=no
@@ -48,9 +48,9 @@ if test $ac_cv_func_strerror_r = yes; then
        int
        main ()
        {
-         char buf[2];
+         char buf[100];
          char x = *strerror_r (0, buf, sizeof buf);
-         exit (x && !isalpha (x));
+         exit (!isalpha (x));
        }
        ],
        ac_cv_func_strerror_r_works=yes,