1 files changed, 23 insertions, 0 deletions
diff --git a/ruby/ext/protobuf_c/extconf.rb b/ruby/ext/protobuf_c/extconf.rb
new file mode 100644
index 00000000..7f23b1a8
--- /dev/null
+++ b/ruby/ext/protobuf_c/extconf.rb
@@ -0,0 +1,23 @@
+#!/usr/bin/ruby
+
+require 'mkmf'
+
+upb_path = File.absolute_path(File.dirname($0)) + "/../../../upb"
+libs = ["upb_pic", "upb.pb_pic", "upb.json_pic"]
+system("cd #{upb_path}; make " + libs.map{|l| "lib/lib#{l}.a"}.join(" "))
+
+$CFLAGS += " -O3 -std=c99 -Wno-unused-function -DNDEBUG"
+
+find_header("upb/upb.h", upb_path) or
+  raise "Can't find upb headers"
+find_library("upb_pic", "upb_msgdef_new", upb_path + "/lib") or
+  raise "Can't find upb lib"
+find_library("upb.pb_pic", "upb_pbdecoder_init", upb_path + "/lib") or
+  raise "Can't find upb.pb lib"
+find_library("upb.json_pic", "upb_json_printer_init", upb_path + "/lib") or
+  raise "Can't find upb.pb lib"
+
+$objs = ["protobuf.o", "defs.o", "storage.o", "message.o",
+         "repeated_field.o", "encode_decode.o"]
+
+create_makefile("protobuf_c")