1 files changed, 5 insertions, 1 deletions
diff --git a/filling.c b/filling.c
index 87b9d9e..0c2d292 100644
--- a/filling.c
+++ b/filling.c
@@ -58,7 +58,11 @@
 
 #include <assert.h>
 #include <ctype.h>
-#include <tgmath.h>
+#ifdef NO_TGMATH_H
+#  include <math.h>
+#else
+#  include <tgmath.h>
+#endif
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>