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https://github.com/axboe/liburing/commit/c34070e08199491fe9653617364f4aea9b9b22be
From: Sam James <sam@gentoo.org>
Date: Mon, 14 Mar 2022 14:18:55 +0000
Subject: [PATCH] liburing.h: define GNU_SOURCE for cpu_set_t
On musl, cpu_set_t is only exposed if GNU_SOURCE is defined. While in
the liburing build system, this is set (43b7ec8d17888df0debccda27dd58f4d1b90245e),
it can't be guaranteed that folks including the header externally will set
that macro.
Noticed while investigating a build failure for glusterfs on a musl
system:
```
configure:17701: checking for liburing.h
configure:17701: x86_64-gentoo-linux-musl-gcc -c -pipe -march=native -fno-diagnostics-color -O2 conftest.c >&5
In file included from conftest.c:105:
/usr/include/liburing.h:162:39: error: unknown type name 'cpu_set_t'
162 | const cpu_set_t *mask);
| ^~~~~~~~~
configure:17701: $? = 1
```
Just like _XOPEN_SOURCE, set if needed.
Bug: https://bugs.gentoo.org/829293
Bug: https://github.com/axboe/liburing/issues/422
See: 43b7ec8d17888df0debccda27dd58f4d1b90245e
Signed-off-by: Sam James <sam@gentoo.org>
--- a/src/include/liburing.h
+++ b/src/include/liburing.h
@@ -6,6 +6,10 @@
#define _XOPEN_SOURCE 500 /* Required for glibc to expose sigset_t */
#endif
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE /* Required for musl to expose cpu_set_t */
+#endif
+
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/uio.h>
|
