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-rw-r--r--ui/twin/pbt-scr.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/ui/twin/pbt-scr.c b/ui/twin/pbt-scr.c
index 79f6792..b774f19 100644
--- a/ui/twin/pbt-scr.c
+++ b/ui/twin/pbt-scr.c
@@ -15,8 +15,10 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#if defined(HAVE_CONFIG_H)
#include "config.h"
-#define _GNU_SOURCE
+#endif
+
#include <assert.h>
#include <string.h>
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