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-rw-r--r--include/unistd.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/unistd.h b/include/unistd.h
index 0fd4305..bfb6ecc 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -1260,7 +1260,7 @@ extern int getentropy(void *__buf, size_t __len) __nonnull ((1)) __wur;
#endif
#if (defined _GNU_SOURCE && defined __UCLIBC_HAS_THREADS_NATIVE__)
-pid_t gettid(void);
+extern __pid_t gettid(void);
#endif
__END_DECLS