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-rw-r--r--configure.ac4
1 files changed, 4 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 6d35450b0..bd618e577 100644
--- a/configure.ac
+++ b/configure.ac
@@ -712,6 +712,10 @@ case "${host}" in
# keeps things simple
require_iconv=no
;;
+ *-apple-darwin*)
+ AC_DEFINE(_DARWIN_C_SOURCE, 900000L,
+ Expose all libc features (__DARWIN_C_FULL).)
+ ;;
*)
;;
esac