diff --git a/src/aclocal.m4 b/src/aclocal.m4 index e9d483b2f4f21dccf9cba6cdc10d52b2e271f57b..53aac95064b6f3b6d5312ae3ef490ca93c04a253 100644 --- a/src/aclocal.m4 +++ b/src/aclocal.m4 @@ -501,7 +501,8 @@ EOF ORIG_AC_CHECK_SIZEOF([$1],[$2],[$3]) ]) -define([ORIG_CHECK_HEADERS], defn([AC_CHECK_HEADERS])) +m4_copy([AC_CHECK_HEADERS], [ORIG_CHECK_HEADERS]) +ifdef([_AC_CHECK_HEADERS], m4_copy([_AC_CHECK_HEADERS], [_ORIG_CHECK_HEADERS])) define([AC_CHECK_HEADERS], [ if test "x$enable_binary" != "xno"; then