base64: fix for unsigned chars (e.g. ARM).

[ccan] / ccan / str / test / compile_fail-isalpha.c

diff --git a/ccan/str/test/compile_fail-isalpha.c b/ccan/str/test/compile_fail-isalpha.c
index 2005109829be36e1ea558e287b770d9fbb1cc663..33d365538aff0a28c6f5b7f36119363ab6d7ae71 100644 (file)
--- a/ccan/str/test/compile_fail-isalpha.c
+++ b/ccan/str/test/compile_fail-isalpha.c
@@ -3,6 +3,7 @@
 
 int main(int argc, char *argv[])
 {
+       (void)argc;
 #ifdef FAIL
 #if !HAVE_BUILTIN_TYPES_COMPATIBLE_P || !HAVE_TYPEOF
 #error We need typeof to check isalpha.