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-rw-r--r--src/stdio/ftrylockfile.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/stdio/ftrylockfile.c b/src/stdio/ftrylockfile.c
index 725b66e7..1d0a1ff8 100644
--- a/src/stdio/ftrylockfile.c
+++ b/src/stdio/ftrylockfile.c
@@ -3,7 +3,7 @@
 
 int ftrylockfile(FILE *f)
 {
-	libc.lockfile = __lockfile;
+	if (!libc.lockfile) libc.lockfile = __lockfile;
 	if (f->owner && f->owner == pthread_self()->tid) {
 		if (f->lockcount == INT_MAX)
 			return -1;