New: bitcode support

lib/curl_builder.rb

@@ -60,10 +60,11 @@ module CurlBuilder
     verbose:            false,
     debug_symbols:      false,
     curldebug:          false,
-    sdk_version:        "9.2",
+    sdk_version:        "9.3",
     osx_sdk_version:    "10.11",
     libcurl_version:    "7.47.1",
     architectures:      %w(i386 armv7 armv7s arm64 x86_64),
+    bitcode:            true,
     xcode_home:         "/Applications/Xcode.app/Contents/Developer",
     run_on_dir:         Dir::pwd,
     work_dir:           "build",

lib/curl_builder/compiler.rb

@@ -102,12 +102,16 @@ def compilation_flags_for(platform, architecture)
         min_version = "-mmacosx-version-min=10.7"
       end
 
+      if setup(:bitcode)
+        embed_bitcode = "-fembed-bitcode"
+      end
+
       sdk_version = sdk_version_for platform
       sdk = "#{setup(:xcode_home)}/Platforms/#{platform}.platform/Developer/SDKs/#{platform}#{sdk_version}.sdk"
 
       {
         ldflags: "-arch #{architecture} -pipe -isysroot #{sdk}",
-        cflags:  "-arch #{architecture} -pipe -isysroot #{sdk} #{min_version}"
+        cflags:  "-arch #{architecture} -pipe -isysroot #{sdk} #{min_version} #{embed_bitcode}"
       }
     end
 

lib/curl_builder/parser.rb

@@ -67,6 +67,12 @@ def parse(args)
           setup[:architectures] = CurlBuilder.filter_valid_archs(archs)
         end
 
+        parser.on("--[no-]bitcode",
+                  "Use BITCODE flag when building",
+                  "  Defaults to #{param(setup[:bitcode])}") do |bitcode|
+          setup[:bitcode] = bitcode
+        end
+
         parser.on("--enable-protocols A,B,C",
                   Array,
                   "Enables a list of protocols",