extconf.rb in gdal-2.0.0

- old
+ new

@@ -19,7 +19,12 @@
 $CXXFLAGS = CONFIG["CXXFLAGS"] unless defined?($CXXFLAGS)
 
 $CFLAGS << ' -Wno-format-security'
 $CXXFLAGS << ' -Wno-format-security'
 
+if !(`gdal-config --version`.strip =~ /^1/)
+  $CFLAGS << ' -Wno-reserved-user-defined-literal -std=c++11'
+  $CXXFLAGS << ' -Wno-reserved-user-defined-literal -std=c++11'
+end
+
 create_makefile 'gdal-ruby/gdal'
 