Add a first implementation of mrbgems with one fixed MD5 gem

mrbgems/Makefile

@@ -0,0 +1,22 @@
+# makefile description.
+# add gems to the ruby library
+
+LIBRGEMS := ../lib/libmruby_gems.a
+INIT := init_gems
+RM_F := rm -f
+CC_FLAGS := -Wall -Werror-implicit-function-declaration -g -O3 -MMD -I. -I./../include
+
+##############################
+# generic build targets, rules
+
+.PHONY : all
+all : $(INIT).o
+
+$(INIT).o : $(INIT).c
+	gcc $(CC_FLAGS) -c $(INIT).c -o $(INIT).o
+	@$(MAKE) -C md5
+
+.PHONY : clean
+clean :
+	$(RM_F) $(INIT).o $(INIT).d $(LIBRGEMS)
+	@$(MAKE) clean -C md5

mrbgems/init_gems.c

@@ -0,0 +1,16 @@
+/*
+ * This file will contain a list of all
+ * initializing methods necessary to
+ * bootstrap every gem.
+ *
+ */
+
+#include "mruby.h"
+
+void mrb_md5_gem_init(mrb_state*);
+
+void
+mrb_init_mrbgems(mrb_state *mrb)
+{
+  mrb_md5_gem_init(mrb);
+}

mrbgems/md5/Makefile

@@ -0,0 +1,20 @@
+MRUBY_ROOT = ../..
+
+INCLUDES = -I$(MRUBY_ROOT)/include -I$(MRUBY_ROOT)/src -I.
+CFLAGS = $(INCLUDES) -O3 -g -Wall -Werror-implicit-function-declaration
+
+CC = gcc
+LL = gcc
+AR = ar
+
+all : md5.o mrb_md5.o
+	@echo done
+
+md5.o : md5.c md5.h
+	gcc -c -I. md5.c
+
+mrb_md5.o : mrb_md5.c mrb_md5.h
+	gcc -c $(CFLAGS) mrb_md5.c
+
+clean :
+	rm -f *.o

mrbgems/md5/README.md

@@ -0,0 +1,4 @@
+mruby-md5
+=========
+
+MD5 digest function