https://web.git.kernel.org/pub/scm/bluetooth/bluez.git/patch/?id=b71c5327926696223dba0d78f4c9fe36767d16ec

From b71c5327926696223dba0d78f4c9fe36767d16ec Mon Sep 17 00:00:00 2001
From: orbea <orbea@riseup.net>
Date: Mon, 3 Mar 2025 16:50:06 -0800
Subject: configure.ac: check for stdio.h

This fixes a configure failure for readline.h with slibtoolize which
depends on HAVE_STDIO_H being defined. With GNU libtoolize this check is
implicit and with slibtoolize it will fail instead.

  error: unknown type name 'FILE'

Since bluez depends on stdio.h itself there is no reason to not check
for it explicitly.

Gentoo-Issue: https://bugs.gentoo.org/950467
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 6a19487f62..32e0a78762 100644
--- a/configure.ac
+++ b/configure.ac
@@ -70,7 +70,7 @@ AC_CHECK_LIB(pthread, pthread_create, dummy=yes,
 AC_CHECK_LIB(dl, dlopen, dummy=yes,
 			AC_MSG_ERROR(dynamic linking loader is required))
 
-AC_CHECK_HEADERS(string.h linux/types.h linux/if_alg.h linux/uinput.h linux/uhid.h sys/random.h)
+AC_CHECK_HEADERS(stdio.h string.h linux/types.h linux/if_alg.h linux/uinput.h linux/uhid.h sys/random.h)
 
 # basename may be only available in libgen.h with the POSIX behavior,
 # not desired here