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-rw-r--r--divelist.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/divelist.h b/divelist.h
index e3ff1be09..47680f9b2 100644
--- a/divelist.h
+++ b/divelist.h
@@ -3,9 +3,13 @@
#ifdef __cplusplus
extern "C" {
-#endif
-
+#else
+#if __STDC_VERSION__ >= 199901L
#include <stdbool.h>
+#else
+typedef int bool;
+#endif
+#endif
struct dive;