musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/src/stdio/flockfile.c b/src/stdio/flockfile.c
index 0d4c92c2..a196c1ef 100644
--- a/src/stdio/flockfile.c
+++ b/src/stdio/flockfile.c

@@ -3,6 +3,8 @@

void flockfile(FILE *f)

{

- if (!libc.threaded) pthread_self();

- __lockfile(f);

+ while (ftrylockfile(f)) {

+ int owner = f->lock;

+ if (owner) __wait(&f->lock, &f->waiters, owner, 1);

+ }

}