Remove github and git related files from extracted bundled gems

common.mk

@@ -1358,12 +1358,13 @@ update-gems$(gnumake:yes=-nongnumake): PHONY
 extract-gems$(gnumake:yes=-nongnumake): PHONY
 	$(ECHO) Extracting bundled gem files...
 	$(Q) $(RUNRUBY) -C "$(srcdir)" \
-	    -Itool -rgem-unpack -answ \
+	    -Itool -rfileutils -rgem-unpack -answ \
 	    -e 'BEGIN {FileUtils.mkdir_p(d = ".bundle/gems")}' \
 	    -e 'gem, ver = *$$F' \
 	    -e 'next if !ver or /^#/=~gem' \
 	    -e 'g = "#{gem}-#{ver}"' \
 	    -e 'File.directory?("#{d}/#{g}") or Gem.unpack("gems/#{g}.gem", d)' \
+	    -e 'FileUtils.rm_rf("#{d}/#{g}/.github")' \
 	    gems/bundled_gems
 
 update-bundled_gems: PHONY

defs/gmake.mk

@@ -296,6 +296,7 @@ extract-gems: | $(patsubst %,.bundle/gems/%,$(bundled-gems))
 	$(Q) $(BASERUBY) -C "$(srcdir)" \
 	    -Itool -rgem-unpack \
 	    -e 'Gem.unpack("gems/$(@F).gem", ".bundle/gems")'
+	$(RMALL) "$(srcdir)/$(@:.gem=)/".git*
 
 $(srcdir)/.bundle/gems:
 	$(MAKEDIRS) $@