1 files changed, 4 insertions, 0 deletions
diff --git a/xcalc.h b/xcalc.h
index 855dc4a..bb6920d 100644
--- a/xcalc.h
+++ b/xcalc.h
@@ -37,6 +37,10 @@ from the X Consortium.
 #ifndef _XCALC_H_
 #define _XCALC_H_
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #include <X11/Intrinsic.h>
 #include <X11/StringDefs.h>