1 files changed, 91 insertions, 0 deletions
diff --git a/mrbgems/Makefile4gem b/mrbgems/Makefile4gem
new file mode 100644
index 000000000..763210659
--- /dev/null
+++ b/mrbgems/Makefile4gem
@@ -0,0 +1,91 @@
+# This is the default Makefile integrated
+# by each Gem. It integrates important constants
+# for usage inside of a Gem.
+
+ifeq ($(strip $(MRUBY_ROOT)),)
+  # mruby src root
+  MRUBY_ROOT := $(realpath ../../..)
+endif
+
+# Tools
+CC := gcc
+RM := rm -f
+AR := ar
+
+SRC_DIR := src
+MRB_DIR := mrblib
+
+INCLUDES := -I$(SRC_DIR) -I$(MRUBY_ROOT)/include -I$(MRUBY_ROOT)/src -I.
+CFLAGS := $(INCLUDES) -O3 -g -Wall -Werror-implicit-function-declaration
+
+# LIBR can be manipulated with command line arguments
+ifeq ($(strip $(LIBR)),)
+  # default mruby library
+  LIBR := $(MRUBY_ROOT)/lib/libmruby.a
+endif
+
+GEM_PACKAGE := mrb-$(GEM)-gem.a
+
+ifeq ($(strip $(ACTIVE_GEMS)),)
+  # the default file which contains the active GEMs
+  ACTIVE_GEMS = GEMS.active
+endif
+
+# Default rules which are calling the
+# gem specific gem-all and gem-clean
+# implementations of a gem
+
+.PHONY : all
+all : gem-info gem-all
+
+gem-info:
+	@echo "Building Gem '$(GEM)'"
+
+# Building target for C and Ruby files
+gem-c-and-rb-files : gem_mixlib.o
+	$(AR) rs $(GEM_PACKAGE) $(GEM_OBJECTS) $^
+
+gem_mixlib.c : gem_mrblib_header.ctmp gem_mrblib_irep.ctmp gem_mixlib_init.ctmp
+	cat $^ > $@
+
+gem_mixlib_init.ctmp :
+	$(MRUBY_ROOT)/mrbgems/generator gem_mixlib $(GEM) "$(ACTIVE_GEMS)" > $@
+
+# Building target for C files
+gem-c-files : gem_srclib.o
+	$(AR) rs $(GEM_PACKAGE) $(GEM_OBJECTS) $<
+
+gem_srclib.c :
+	$(MRUBY_ROOT)/mrbgems/generator gem_srclib $(GEM) "$(ACTIVE_GEMS)" > $@
+
+# Building target for Ruby Files
+gem-rb-files : gem_mrblib.o
+	$(AR) rs $(GEM_PACKAGE) $<
+
+gem_mrblib.c : gem_mrblib_header.ctmp gem_mrblib_irep.ctmp gem_mrblib_init.ctmp
+	cat $^ > $@
+
+gem_mrblib_header.ctmp :
+	$(MRUBY_ROOT)/mrbgems/generator gem_mrblib "$(ACTIVE_GEMS)" > $@
+
+gem_mrblib_init.ctmp :
+	$(MRUBY_ROOT)/mrbgems/generator gem_mrblib $(GEM) "$(ACTIVE_GEMS)" > $@
+
+gem_mrblib_irep.ctmp : gem_mrblib.rbtmp
+	$(MRUBY_ROOT)/bin/mrbc -Bgem_mrblib_irep_$(GEM) -o$@ $<
+
+gem_mrblib.rbtmp :
+	cat $(GEM_RB_FILES) > $@
+
+gem-clean-c-and-rb-files :
+	-$(RM) $(GEM_PACKAGE) gem_mixlib.o gem_mixlib.c gem_mrblib_header.ctmp gem_mrblib_irep.ctmp gem_mixlib_init.ctmp gem_mrblib.rbtmp
+
+gem-clean-c-files :
+	-$(RM) $(GEM_PACKAGE) gem_srclib.c gem_srclib.o $(GEM_OBJECTS)
+
+gem-clean-rb-files :
+	-$(RM) $(GEM_PACKAGE) gem_mrblib.o gem_mrblib.c gem_mrblib_header.ctmp gem_mrblib_init.ctmp gem_mrblib_irep.ctmp gem_mrblib.rbtmp
+
+.PHONY : clean
+clean : gem-clean
+	@echo "Gem '$(GEM)' is clean"