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-rw-r--r--math/tst-CMPLX.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/math/tst-CMPLX.c b/math/tst-CMPLX.c
index 2c32438729..5e9a501a55 100644
--- a/math/tst-CMPLX.c
+++ b/math/tst-CMPLX.c
@@ -1,4 +1,5 @@
 #include <complex.h>
+#include <stdio.h>
 
 
 static int