X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/33a65a90c9d0e2ab121e1da9c3efedaf9e6a9789..19d683b4df6f7d4098ef786dd36c96b6f90c8df5:/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