fix pthread_once usage with libc on linux

ziglang · Oct 6, 2021 · d4377c0 · d4377c0
1 parent 37fa674
commit d4377c0
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/lib/std/c.zig b/lib/std/c.zig
@@ -332,7 +332,7 @@ pub extern "c" fn pthread_rwlock_trywrlock(rwl: *c.pthread_rwlock_t) callconv(.C
 pub extern "c" fn pthread_rwlock_unlock(rwl: *c.pthread_rwlock_t) callconv(.C) c.E;
 
 pub const PTHREAD_ONCE_INIT = c.pthread_once_t{};
-pub extern "c" fn pthread_once(once: *c.pthread_once_t, init_routine: fn () callconv(.C) void) callconv(.C) c_int;
+pub extern "c" fn pthread_once(once: *c.pthread_once_t, init_routine: fn () callconv(.C) void) callconv(.C) c.E;
 
 pub const pthread_t = *opaque {};
 pub const FILE = opaque {};

diff --git a/lib/std/c/linux.zig b/lib/std/c/linux.zig
@@ -296,6 +296,9 @@ pub const pthread_attr_t = extern struct {
     __align: c_long,
 };
 
+pub const pthread_once_t = extern struct {
+    __futex: c_int = 0,
+};
 pub const pthread_mutex_t = extern struct {
     size: [__SIZEOF_PTHREAD_MUTEX_T]u8 align(@alignOf(usize)) = [_]u8{0} ** __SIZEOF_PTHREAD_MUTEX_T,
 };