Update librustc build targets with correct flags

Author: brson

mk/stage1.mk

@@ -15,8 +15,8 @@ stage1/librustc.o: $(COMPILER_CRATE) $(COMPILER_INPUTS) $(SREQ0)
 
 stage1/$(CFG_RUSTCLIB): stage1/librustc.o stage1/glue.o
 	@$(call E, link: $@)
-	$(Q)gcc $(CFG_GCC_CFLAGS) stage1/glue.o $(CFG_GCC_LINK_FLAGS) -o $@ $< \
-		-Lstage1 -Lrt -lrustrt
+	$(Q)gcc $(CFG_GCCISH_CFLAGS) stage1/glue.o $(CFG_GCCISH_LINK_FLAGS) \
+	-o $@ $< -Lstage1 -Lrt -lrustrt
 
 stage1/rustc.o: $(COMPILER_CRATE) $(COMPILER_INPUTS) $(SREQ0)
 	@$(call E, compile: $@)

mk/stage2.mk

@@ -15,8 +15,8 @@ stage2/librustc.o: $(COMPILER_CRATE) $(COMPILER_INPUTS) $(SREQ1)
 
 stage2/$(CFG_RUSTCLIB): stage2/librustc.o stage2/glue.o
 	@$(call E, link: $@)
-	$(Q)gcc $(CFG_GCC_CFLAGS) stage2/glue.o $(CFG_GCC_LINK_FLAGS) -o $@ $< \
-		-Lstage2 -Lrt -lrustrt
+	$(Q)gcc $(CFG_GCCISH_CFLAGS) stage2/glue.o $(CFG_GCCISH_LINK_FLAGS) \
+	-o $@ $< -Lstage2 -Lrt -lrustrt
 
 stage2/rustc.o: $(COMPILER_CRATE) $(COMPILER_INPUTS) $(SREQ1)
 	@$(call E, compile: $@)

mk/stage3.mk

@@ -15,8 +15,8 @@ stage3/librustc.o: $(COMPILER_CRATE) $(COMPILER_INPUTS) $(SREQ2)
 
 stage3/$(CFG_RUSTCLIB): stage3/librustc.o stage3/glue.o
 	@$(call E, link: $@)
-	$(Q)gcc $(CFG_GCC_CFLAGS) stage3/glue.o $(CFG_GCC_LINK_FLAGS) -o $@ $< \
-		-Lstage3 -Lrt -lrustrt
+	$(Q)gcc $(CFG_GCCISH_CFLAGS) stage3/glue.o $(CFG_GCCISH_LINK_FLAGS) \
+	-o $@ $< -Lstage3 -Lrt -lrustrt
 
 stage3/rustc.o: $(COMPILER_CRATE) $(COMPILER_INPUTS) $(SREQ2)
 	@$(call E, compile: $@)