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-rw-r--r--mysys/my_mmap.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mysys/my_mmap.c b/mysys/my_mmap.c
index 883181edd6c..0225e7fac24 100644
--- a/mysys/my_mmap.c
+++ b/mysys/my_mmap.c
@@ -16,7 +16,7 @@
#include "mysys_priv.h"
-#ifdef HAVE_MMAP
+#ifdef HAVE_SYS_MMAN_H
/*
system msync() only syncs mmap'ed area to fs cache.
@@ -84,6 +84,6 @@ int my_msync(int fd, void *addr, size_t len, int flags)
}
#endif
-#error "no mmap!"
+#warning "no mmap!"
#endif