Generate mrbtest.a file for sparete from driver.o

Rakefile

@@ -62,9 +62,9 @@ task :all => depfiles do
 end
 
 desc "run all mruby tests"
-task :test => MRuby.targets.values.map { |t| t.exefile("#{t.build_dir}/test/mrbtest") } do
+task :test => MRuby.targets.values.map { |t| t.build_mrbtest_lib_only? ? t.libfile("#{t.build_dir}/test/mrbtest") : t.exefile("#{t.build_dir}/test/mrbtest") } do
   MRuby.each_target do
-    run_test
+    run_test unless build_mrbtest_lib_only?
   end
 end
 

build_config.rb

@@ -73,6 +73,8 @@ end
 #   
 #   conf.cc.flags << "-m32"
 #   conf.linker.flags << "-m32"
+#
+#   conf.build_mrbtest_lib_only
 #   
 #   conf.gem 'examples/mrbgems/c_and_ruby_extension_example'
 # end

doc/compile/README.md

@@ -160,6 +160,16 @@ Integrate GEMs in the build process.
 	# Integrate GEM without additional configuration
 	conf.gem 'path/to/another/gem'
 
+
+### Mrbtest
+
+Configuration Mrbtest build process.
+
+If you want mrbtest.a only, You should set ```conf.build_mrbtest_lib_only```
+
+	conf.build_mrbtest_lib_only
+
+
 ## Cross-Compilation
 
 mruby can also be cross-compiled from one platform to another. To

tasks/mrbgem_spec.rake

@@ -77,8 +77,8 @@ module MRuby
         "#{build.build_dir}/mrbgems/#{name}"
       end
 
-      def testlib
-        libfile("#{build_dir}/libmrb-#{name}-gem-test")
+      def test_rbireps
+        "#{build_dir}/gem_test.c"
       end
 
       def funcname

tasks/mrbgems_test.rake

@@ -2,15 +2,10 @@ MRuby.each_target do
   dir = File.dirname(__FILE__).relative_path_from(root)
 
   gems.each do |g|
-    test_rbc = "#{g.build_dir}/gem_test.c"
-    test_rbobj = test_rbc.ext(exts.object)
+    test_rbobj = g.test_rbireps.ext(exts.object)
 
-    file g.testlib => [g.test_objs, test_rbobj].flatten do |t|
-      g.build.archiver.run t.name, t.prerequisites
-    end
-
-    file test_rbobj => test_rbc
-    file test_rbc => [g.test_rbfiles].flatten + [g.build.mrbcfile, libfile("#{build_dir}/lib/libmruby")] do |t|
+    file test_rbobj => g.test_rbireps
+    file g.test_rbireps => [g.test_rbfiles].flatten + [g.build.mrbcfile, libfile("#{build_dir}/lib/libmruby")] do |t|
       open(t.name, 'w') do |f|
         g.print_gem_init_header(f)
         g.build.mrbc.run f, g.test_preload, "gem_test_irep_#{g.funcname}_preload"

tasks/mruby_build.rake

@@ -78,6 +78,7 @@ module MRuby
 
         @bins = %w(mruby mrbc mirb)
         @gems, @libmruby = [], []
+        @build_mrbtest_lib_only = false
 
         MRuby.targets[@name] = self
       end
@@ -149,6 +150,14 @@ module MRuby
       end
     end
 
+    def build_mrbtest_lib_only
+      @build_mrbtest_lib_only = true
+    end
+
+    def build_mrbtest_lib_only?
+      @build_mrbtest_lib_only
+    end
+
     def run_test
       puts ">>> Test #{name} <<<"
       mrbtest = exefile("#{build_dir}/test/mrbtest")

test/mrbtest.rake

@@ -8,20 +8,27 @@ MRuby.each_target do
   init = "#{dir}/init_mrbtest.c"
   asslib = "#{dir}/assert.rb"
 
-  objs = [objfile("#{build_dir}/#{dir}/driver"), mlib].flatten
+  mrbtest_lib = libfile("#{build_dir}/#{dir}/mrbtest")
+  file mrbtest_lib => [mlib, gems.map(&:test_objs), gems.map { |g| g.test_rbireps.ext(exts.object) }].flatten do |t|
+    archiver.run t.name, t.prerequisites
+  end
 
-  file exec => objs + gems.map(&:testlib).flatten + [libfile("#{build_dir}/lib/libmruby")] do |t|
-    gem_flags = gems.map { |g| g.linker.flags }
-    gem_flags_before_libraries = gems.map { |g| g.linker.flags_before_libraries }
-    gem_flags_after_libraries = gems.map { |g| g.linker.flags_after_libraries }
-    gem_libraries = gems.map { |g| g.linker.libraries }
-    gem_library_paths = gems.map { |g| g.linker.library_paths }
-    linker.run t.name, t.prerequisites, gem_libraries, gem_library_paths, gem_flags, gem_flags_before_libraries
+  unless build_mrbtest_lib_only?
+    driver_obj = objfile("#{build_dir}/#{dir}/driver")
+    file exec => [driver_obj, mrbtest_lib, libfile("#{build_dir}/lib/libmruby")] do |t|
+      gem_flags = gems.map { |g| g.linker.flags }
+      gem_flags_before_libraries = gems.map { |g| g.linker.flags_before_libraries }
+      gem_flags_after_libraries = gems.map { |g| g.linker.flags_after_libraries }
+      gem_libraries = gems.map { |g| g.linker.libraries }
+      gem_library_paths = gems.map { |g| g.linker.library_paths }
+      linker.run t.name, t.prerequisites, gem_libraries, gem_library_paths, gem_flags, gem_flags_before_libraries
+    end
   end
 
   file mlib => [clib]
   file clib => [mrbcfile, init, asslib] + mrbs do |t|
     _pp "GEN", "*.rb", "#{clib}"
+    FileUtils.mkdir_p File.dirname(__FILE__)
     open(clib, 'w') do |f|
       f.puts IO.read(init)
       mrbc.run f, [asslib] + mrbs, 'mrbtest_irep'