[build] include config.h conditionally to not break non-autotools build.

[ginac.git] / ginac / archive.cpp

diff --git a/ginac/archive.cpp b/ginac/archive.cpp
index a7152ba74a4fa38a958c1c223d2f2b296f5bff1f..d643e68bf31166933ae5830cfaaf66f927f2761f 100644 (file)
--- a/ginac/archive.cpp
+++ b/ginac/archive.cpp
@@ -24,7 +24,9 @@
 #include "registrar.h"
 #include "ex.h"
 #include "lst.h"
+#ifdef HAVE_CONFIG_H
 #include "config.h"
+#endif
 #include "tostring.h"
 
 #include <iostream>