| --- a/Makefile.real | 
 | +++ b/Makefile.real | 
 | @@ -6,6 +6,18 @@ else | 
 |  export BACKPORTS_GIT_TRACKER_DEF= | 
 |  endif | 
 |   | 
 | +ifneq ($(LLVM),) | 
 | +ifneq ($(filter %/,$(LLVM)),) | 
 | +LLVM_PREFIX := $(LLVM) | 
 | +else ifneq ($(filter -%,$(LLVM)),) | 
 | +LLVM_SUFFIX := $(LLVM) | 
 | +endif | 
 | + | 
 | +HOSTCC	= $(LLVM_PREFIX)clang$(LLVM_SUFFIX) | 
 | +else | 
 | +HOSTCC	= gcc | 
 | +endif | 
 | + | 
 |  # disable built-in rules for this file | 
 |  .SUFFIXES: | 
 |   | 
 | @@ -24,21 +36,21 @@ listnewconfig oldaskconfig oldconfig \ | 
 |  silentoldconfig olddefconfig oldnoconfig \ | 
 |  allnoconfig allyesconfig allmodconfig \ | 
 |  alldefconfig randconfig: | 
 | -	@$(MAKE) -C kconf conf | 
 | +	@$(MAKE) -C kconf CC=$(HOSTCC) conf | 
 |  	@./kconf/conf --$@ Kconfig | 
 |   | 
 |  .PHONY: usedefconfig | 
 |  usedefconfig: | 
 | -	@$(MAKE) -C kconf conf | 
 | +	@$(MAKE) -C kconf CC=$(HOSTCC) conf | 
 |  	@./kconf/conf --defconfig=defconfig Kconfig | 
 |   | 
 |  .PHONY: savedefconfig | 
 |  savedefconfig: | 
 | -	@$(MAKE) -C kconf conf | 
 | +	@$(MAKE) -C kconf CC=$(HOSTCC) conf | 
 |  	@./kconf/conf --savedefconfig=defconfig Kconfig | 
 |   | 
 |  defconfig-%:: | 
 | -	@$(MAKE) -C kconf conf | 
 | +	@$(MAKE) -C kconf CC=$(HOSTCC) conf | 
 |  	@./kconf/conf --defconfig=defconfigs/$(@:defconfig-%=%) Kconfig | 
 |   | 
 |  .config: |