From 10814feab217da4bcfaea45ff9cd48252e26b3e1 Mon Sep 17 00:00:00 2001
From: Thomas Schmitt <scdbackup@gmx.net>
Date: Mon, 24 Mar 2025 08:49:31 +0100
Subject: [PATCH] Added to configure.ac explicit checks for stdint.h,
 inttypes.h, stdlib.h because slibtool does not put them into ./configure by
 default

---
 configure.ac | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 2681362..9fec1ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -197,7 +197,9 @@ AC_SUBST(LIBTOOL_DEPS)
 
 AC_PROG_INSTALL
 
-AC_CHECK_HEADERS()
+dnl GNU libtool checks them by default/unconditionally, but slibtool does not.
+dnl So accept the ugly double check and -DHAVE_*_H arguments with GNU libtool.
+AC_CHECK_HEADERS(stdint.h inttypes.h stdlib.h)
 
 THREAD_LIBS=-lpthread
 AC_SUBST(THREAD_LIBS)