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-rw-r--r--libguile/putenv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libguile/putenv.c b/libguile/putenv.c
index b43765f6e..0ff33592a 100644
--- a/libguile/putenv.c
+++ b/libguile/putenv.c
@@ -16,7 +16,7 @@
*/
-#if HAVE_CONFIG_H
+#ifdef HAVE_CONFIG_H
# include <config.h>
#endif