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-rw-r--r--libguile/simpos.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/libguile/simpos.c b/libguile/simpos.c
index caeb753c4..5e6005448 100644
--- a/libguile/simpos.c
+++ b/libguile/simpos.c
@@ -23,6 +23,7 @@
#endif
#include <errno.h>
+#include <signal.h> /* for SIG constants */
#include <stdlib.h> /* for getenv */
#include "libguile/_scm.h"