Change build process to create meaningful Archive file instead of gem.a

mrbgems/Makefile4gem

@@ -24,6 +24,8 @@ ifeq ($(strip $(LIBR)),)
   LIBR := $(MRUBY_ROOT)lib/libmruby.a
 endif
 
+GEM_PACKAGE := mrb-$(GEM)-gem.a
+
 # Default rules which are calling the
 # gem specific gem-all and gem-clean
 # implementations of a gem
@@ -36,7 +38,7 @@ gem-info:
 
 # Building target for C and Ruby files
 gem-c-and-rb-files : gem_mixlib.o
-	$(AR) rs gem.a $(GEM_OBJECTS) $^
+	$(AR) rs $(GEM_PACKAGE) $(GEM_OBJECTS) $^
 
 gem_mixlib.c : gem_mrblib_header.ctmp gem_mrblib_irep.ctmp gem_mixlib_init.ctmp
 	cat $^ > $@
@@ -46,14 +48,14 @@ gem_mixlib_init.ctmp :
 
 # Building target for C files
 gem-c-files : gem_srclib.o
-	$(AR) rs gem.a $(GEM_OBJECTS) $<
+	$(AR) rs $(GEM_PACKAGE) $(GEM_OBJECTS) $<
 
 gem_srclib.c :
 	$(MRUBY_ROOT)mrbgems/generator gem_srclib $(GEM) > $@
 
 # Building target for Ruby Files
 gem-rb-files : gem_mrblib.o
-	$(AR) rs gem.a $<
+	$(AR) rs $(GEM_PACKAGE) $<
 
 gem_mrblib.c : gem_mrblib_header.ctmp gem_mrblib_irep.ctmp gem_mrblib_init.ctmp
 	cat $^ > $@
@@ -71,13 +73,13 @@ gem_mrblib.rbtmp :
 	cat $(GEM_RB_FILES) > $@
 
 gem-clean-c-and-rb-files :
-	-$(RM) gem.a gem_mixlib.o gem_mixlib.c gem_mrblib_header.ctmp gem_mrblib_irep.ctmp gem_mixlib_init.ctmp gem_mrblib.rbtmp
+	-$(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.a gem_srclib.c gem_srclib.o $(GEM_OBJECTS)
+	-$(RM) $(GEM_PACKAGE) gem_srclib.c gem_srclib.o $(GEM_OBJECTS)
 
 gem-clean-rb-files :
-	-$(RM) gem.a gem_mrblib.o gem_mrblib.c gem_mrblib_header.ctmp gem_mrblib_init.ctmp gem_mrblib_irep.ctmp gem_mrblib.rbtmp
+	-$(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

mrbgems/generator.c

@@ -13,6 +13,39 @@ char *get_file_name(char *path)
     return base ? base+1 : path;
 }
 
+char *replace(const char *s, const char *old, const char *new)
+{
+  char *ret;
+  int i, count = 0;
+  size_t newlen = strlen(new);
+  size_t oldlen = strlen(old);
+
+  for (i = 0; s[i] != '\0'; i++) {
+    if (strstr(&s[i], old) == &s[i]) {
+      count++;
+      i += oldlen - 1;
+    }
+  }
+
+  ret = malloc(i + count * (newlen - oldlen));
+  if (ret == NULL)
+    exit(EXIT_FAILURE);
+
+  i = 0;
+  while (*s) {
+    if (strstr(s, old) == s) {
+      strcpy(&ret[i], new);
+      i += newlen;
+      s += oldlen;
+    }
+    else
+      ret[i++] = *s++;
+  }
+  ret[i] = '\0';
+
+  return ret;
+}
+
 /*
  * Template generator for each active GEM
  *
@@ -25,8 +58,8 @@ char *get_file_name(char *path)
  *     String at the start of the template
  *   end:
  *     String at the end of the template
- *   dir_to_skip:
- *     Name of a directory which will be skipped
+ *   full_path
+ *     Should the full path of the GEM be used?
  *
  */
 static char*
@@ -76,7 +109,7 @@ for_each_gem (char before[1024], char after[1024],
       strcat(complete_line, gem_list[i]);
     else
       strcat(complete_line, get_file_name(gem_list[i]));
-    strcat(complete_line, after);
+    strcat(complete_line, replace(after, "#GEMNAME#", get_file_name(gem_list[i])));
   }
 
   strcat(complete_line, end);
@@ -161,10 +194,10 @@ void
 make_gem_makefile_list()
 {
   printf("%s",
-         for_each_gem(" ", "", "GEM_LIST := ", "\n", TRUE)
+         for_each_gem(" ", "/mrb-#GEMNAME#-gem.a", "GEM_LIST := ", "\n", TRUE)
         );
 
-  printf("GEM_ARCHIVE_FILES := $(addsuffix /gem.a, $(GEM_LIST))\n"
+  printf("GEM_ARCHIVE_FILES := $(GEM_LIST)\n"
          "GEM_ARCHIVE_FILES += $(MRUBY_ROOT)/mrbgems/gem_init.a\n\n");
 }