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-rw-r--r--lib/getpagesize.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/getpagesize.h b/lib/getpagesize.h
index c7632e388..9de8c06f7 100644
--- a/lib/getpagesize.h
+++ b/lib/getpagesize.h
@@ -20,6 +20,13 @@
# endif
#endif
+#if !defined getpagesize && HAVE_OS_H
+# include <OS.h>
+# if defined B_PAGE_SIZE
+# define getpagesize() B_PAGE_SIZE
+# endif
+#endif
+
#ifndef getpagesize
# include <sys/param.h>
# ifdef EXEC_PAGESIZE