package/freeswitch: fix musl build

Fixes:
https://autobuild.buildroot.net/results/b14/b14481674ef0e292c7caf5c7db462bbbb997fc34/

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Arnout Vandecappelle <arnout@rnout.be>

package/freeswitch/0008-apr-fix-musl-build.patch

@@ -0,0 +1,65 @@
+From 81bbf05838fc24b221debfdf75ab8a4c7e7b260c Mon Sep 17 00:00:00 2001
+From: Bernd Kuhls <bernd@kuhls.net>
+Date: Fri, 29 May 2026 08:14:32 +0200
+Subject: [PATCH] apr: fix musl build
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+strerror_r on musl always returns an int since its addition back in 2011
+with
+https://git.musl-libc.org/cgit/musl/commit/src/string/strerror_r.c?id=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01
+
+Add defines created by freeswitch configure to apr subproject to fix the
+build error:
+
+misc/unix/errorcodes.c: In function ‘native_strerror’:
+misc/unix/errorcodes.c:358:9: error: assignment to ‘const char *’ from
+ ‘int’ makes pointer from integer without a cast [-Wint-conversion]
+  358 |     msg = strerror_r(statcode, buf, bufsize);
+
+Upstream: https://github.com/signalwire/freeswitch/pull/3046
+
+Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
+---
+ libs/apr/misc/unix/errorcodes.c | 11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+diff --git a/libs/apr/misc/unix/errorcodes.c b/libs/apr/misc/unix/errorcodes.c
+index 3be0b25b93..93c428df62 100644
+--- a/libs/apr/misc/unix/errorcodes.c
++++ b/libs/apr/misc/unix/errorcodes.c
+@@ -25,6 +25,9 @@
+ #ifdef HAVE_DLFCN_H
+ #include <dlfcn.h>
+ #endif
++#ifndef WIN32
++#include "../../../src/include/switch_private.h"
++#endif
+ 
+ /*
+  * stuffbuffer - like fspr_cpystrn() but returns the address of the
+@@ -352,12 +355,20 @@ const char *strerror_r(fspr_status_t, char *, fspr_size_t);
+ static char *native_strerror(fspr_status_t statcode, char *buf,
+                              fspr_size_t bufsize)
+ {
++#if defined(STRERROR_R_CHAR_P)
+     const char *msg;
++#else
++    int msg;
++#endif
+ 
+     buf[0] = '\0';
+     msg = strerror_r(statcode, buf, bufsize);
+     if (buf[0] == '\0') { /* libc didn't use our buffer */
++#if defined(STRERROR_R_CHAR_P)
+         return stuffbuffer(buf, bufsize, msg);
++#else
++        return stuffbuffer(buf, bufsize, (const char*)msg);
++#endif
+     }
+     else {
+         return buf;
+-- 
+2.47.3
+