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-rw-r--r--libc/include/stdio.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/libc/include/stdio.h b/libc/include/stdio.h
index ac547c7..92442ac 100644
--- a/libc/include/stdio.h
+++ b/libc/include/stdio.h
@@ -1,4 +1,4 @@
-int printf(const char* fmt, ...);
+int printf(const char* fmt, ...) __attribute__ ((format (printf, 1, 2)));;
int puts(const char*);
int putchar(int);