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-rw-r--r--ext/socket/extconf.rb5
1 files changed, 5 insertions, 0 deletions
diff --git a/ext/socket/extconf.rb b/ext/socket/extconf.rb
index 458871f..f3be586 100644
--- a/ext/socket/extconf.rb
+++ b/ext/socket/extconf.rb
@@ -294,6 +294,11 @@ end
$INCFLAGS << " -I$(topdir) -I$(top_srcdir)"
+if /darwin/ =~ RUBY_PLATFORM
+ # For IPv6 extension header access on OS X 10.7+ [Bug #8517]
+ $CFLAGS << " -D__APPLE_USE_RFC_3542"
+end
+
headers = []
unless $mswin or $mingw
headers = %w<sys/types.h netdb.h string.h sys/socket.h netinet/in.h>