sakura_lang.diff

diff --git a/sakura_lang_en_US/Makefile b/sakura_lang_en_US/Makefile
index 0949faa3..4de6510b 100644
--- a/sakura_lang_en_US/Makefile
+++ b/sakura_lang_en_US/Makefile
@@ -23,6 +23,9 @@ endif
 # If empty, it will be output to the default directory.
 OUTDIR =
 
+# The directory where sakura_core is built.
+COREBUILDDIR =
+
 ifeq ($(SHELL),sh.exe)
 # If cmd.exe is used as a shell.
 MKDIR = md
@@ -68,10 +71,10 @@ DEFINES= \
 LIBS= \
  -static \
  -shared \
- -mwindows
+ -s
 
 dll = $(or $(OUTDIR),.)/sakura_lang_en_US.dll
-sakura_rc = ../sakura_core/sakura_rc.o
+sakura_rc = $(or $(COREBUILDDIR),$(SRCDIR)/../sakura_core)/sakura_rc.o
 
 SRCS = $(wildcard $(SRCDIR)/*.rc)
 OBJS = $(SRCS:$(SRCDIR)/%.rc=%.o)
@@ -81,14 +84,11 @@ all: $(dll)
 $(dll): $(OBJS)
 	$(CC) $(OBJS) $(LIBS) -o $@
 
-$(sakura_rc): ../sakura_core/Makefile
-ifneq ($(SRCDIR),.)
-	-$(MKDIR) $(subst /,$(DIRSEP),$(@D)) > $(DEVNULL) 2>&1
-endif
-	$(MAKE) -f $< -C $(@D) $(@F)
+$(sakura_rc): $(SRCDIR)/../sakura_core/Makefile
+	$(MAKE) -f $< -C $(realpath $(@D)) $(@F)
 
 sakura_lang_rc.o: sakura_lang_rc.rc $(sakura_rc)
-	$(RC) -c utf-8 --language=0409 $(DEFINES) -I../sakura_core -I$(SRCDIR)/../sakura_core $< -o $@
+	$(RC) -c utf-8 --language=0409 $(DEFINES) -I$(COREBUILDDIR) -I$(SRCDIR)/../sakura_core $< -o $@
 
 clean:
 	-$(RM) $(subst /,$(DIRSEP),$(dll) $(OBJS))