X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/cfbdd3f7e1c688e2c875ded9fd847fcc1c3a4caf..5c58f00c2e80bfe0e5b0665b74e5a973fabb2db4:/lib/quad_tile/extconf.rb

diff --git a/lib/quad_tile/extconf.rb b/lib/quad_tile/extconf.rb
index c7fc1b899..2264a3e0f 100644
--- a/lib/quad_tile/extconf.rb
+++ b/lib/quad_tile/extconf.rb
@@ -1,3 +1,5 @@
 require "mkmf"
 
-create_makefile("quad_tile_so")
+with_cflags("-std=c99 #{$CFLAGS}") do
+  create_makefile("quad_tile_so")
+end