From 0d784d5a50fabf73f348cba7cd4620841f112074 Mon Sep 17 00:00:00 2001
From: Brian Smith <brian@dbsoft.org>
Date: Mon, 6 May 2024 19:14:22 -0500
Subject: [PATCH] Issue #2512 - Part 2 - Fix autoconf basic compiler test. GCC
 14 and Clang 16 changed implicit-int from warning to error. Causing the
 compiler test from 1996 to fail in C99 mode.

---
 build/autoconf/acspecific.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/autoconf/acspecific.m4 b/build/autoconf/acspecific.m4
index 5c6f1c9e5f..73ae2109c0 100644
--- a/build/autoconf/acspecific.m4
+++ b/build/autoconf/acspecific.m4
@@ -202,7 +202,7 @@ AC_DEFUN(AC_PROG_CC_WORKS,
 [AC_MSG_CHECKING([whether the C compiler ($CC $CFLAGS $LDFLAGS) works])
 AC_LANG_SAVE
 AC_LANG_C
-AC_TRY_COMPILER([main(){return(0);}], ac_cv_prog_cc_works, ac_cv_prog_cc_cross)
+AC_TRY_COMPILER([int main(){return(0);}], ac_cv_prog_cc_works, ac_cv_prog_cc_cross)
 AC_LANG_RESTORE
 AC_MSG_RESULT($ac_cv_prog_cc_works)
 if test $ac_cv_prog_cc_works = no; then