Fix dependencies.

mrbgems/mruby-bin-mruby-config/mrbgem.rake

@@ -19,9 +19,10 @@ MRuby.each_target do
   mruby_config_path = "#{build_dir}/bin/#{mruby_config}"
   @bins << mruby_config
 
-  file mruby_config_path => libfile("#{build_dir}/lib/libmruby") do |t|
+  make_cfg = "#{build_dir}/lib/libmruby.flags.mak"
+  file mruby_config_path => [libfile("#{build_dir}/lib/libmruby"), make_cfg] do |t|
     FileUtils.copy "#{File.dirname(__FILE__)}/#{mruby_config}", t.name
-    config = Hash[open("#{build_dir}/lib/libmruby.flags.mak").read.split("\n").map {|x| a = x.split(/\s*=\s*/, 2); [a[0], a[1].gsub('\\"', '"') ]}]
+    config = Hash[open(make_cfg).read.split("\n").map {|x| a = x.split(/\s*=\s*/, 2); [a[0], a[1].gsub('\\"', '"') ]}]
     IO.write(t.name, File.open(t.name) {|f|
       f.read.gsub (/echo (MRUBY_CFLAGS|MRUBY_LIBS|MRUBY_LDFLAGS_BEFORE_LIBS|MRUBY_LDFLAGS|MRUBY_LIBMRUBY_PATH)/) {|x| config[$1].empty? ? '' : "echo #{config[$1]}"}
     })

mrbgems/mruby-compiler/mrbgem.rake

@@ -23,10 +23,9 @@ MRuby::Gem::Specification.new 'mruby-compiler' do |spec|
       cc.run t.name, t.prerequisites.first, [], ["#{current_dir}/core"]
     end
   end
-  file objfile("#{current_build_dir}/core/y.tab") => lex_def
 
   # Parser
-  file "#{current_build_dir}/core/y.tab.c" => ["#{current_dir}/core/parse.y"] do |t|
+  file "#{current_build_dir}/core/y.tab.c" => ["#{current_dir}/core/parse.y", lex_def] do |t|
     FileUtils.mkdir_p File.dirname t.name
     yacc.run t.name, t.prerequisites.first
   end

mrbgems/mruby-test/mrbgem.rake

@@ -31,7 +31,7 @@ MRuby::Gem::Specification.new('mruby-test') do |spec|
   mrbtest_objs << assert_lib
 
   file assert_lib => assert_c
-  file assert_c => assert_rb do |t|
+  file assert_c => [assert_rb, build.mrbcfile] do |t|
     open(t.name, 'w') do |f|
       mrbc.run f, assert_rb, 'mrbtest_assert_irep'
     end
@@ -45,7 +45,7 @@ MRuby::Gem::Specification.new('mruby-test') do |spec|
     dep_list = build.gems.tsort_dependencies(g.test_dependencies, gem_table).select(&:generate_functions)
 
     file test_rbobj => g.test_rbireps
-    file g.test_rbireps => [g.test_rbfiles].flatten do |t|
+    file g.test_rbireps => [g.test_rbfiles, build.mrbcfile].flatten do |t|
       FileUtils.mkdir_p File.dirname(t.name)
       open(t.name, 'w') do |f|
         g.print_gem_test_header(f)
@@ -169,7 +169,7 @@ MRuby::Gem::Specification.new('mruby-test') do |spec|
   file clib => active_gems_path
 
   file mlib => clib
-  file clib => init do |t|
+  file clib => [init, build.mrbcfile] do |t|
     _pp "GEN", "*.rb", "#{clib.relative_path}"
     FileUtils.mkdir_p File.dirname(clib)
     open(clib, 'w') do |f|