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-rw-r--r--src/math/__signbit.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/math/__signbit.c b/src/math/__signbit.c
index e700b6b7..edfb7d38 100644
--- a/src/math/__signbit.c
+++ b/src/math/__signbit.c
@@ -11,3 +11,11 @@ int __signbit(double x)
}
+
+
+#ifdef TEST
+int
+main(void) {
+ return 0;
+}
+#endif