Revert this change (they're not the same):

  Use new AC_C_PROTOTYPES instead of AM_C_PROTOTYPES.

diff --git a/m4/prereq.m4 b/m4/prereq.m4
index 7f6b7ef..286f990 100644 (file)
--- a/m4/prereq.m4
+++ b/m4/prereq.m4
@@ -33,7 +33,7 @@ AC_DEFUN(jm_PREREQ_QUOTEARG,
   AC_CHECK_HEADERS(limits.h stdlib.h string.h wchar.h)
   AC_HEADER_STDC
   AC_C_BACKSLASH_A
-  AC_C_PROTOTYPES
+  AC_M_PROTOTYPES
 ])
 
 AC_DEFUN(jm_PREREQ_READUTMP,