Add HOST_CC and use it in tools/fontmaker

Author: hikalium

scripts/gen_tool_defs_linux.sh

@@ -8,6 +8,7 @@ if [ ! -f "${FILE}" ]; then
 fi
 echo "LLVM_CC:=`which clang-8`"
 echo "LLVM_CXX:=`which clang++-8`"
+echo "HOST_CC:=`which clang-8`"
 echo "HOST_CXX:=`which clang++-8`"
 echo "LLVM_LLD_LINK:=`which lld-link-8`"
 echo "LLVM_LD_LLD:=`which ld.lld-8`"

scripts/gen_tool_defs_macos.sh

@@ -1,6 +1,7 @@
 LLVM_PREFIX=`brew --prefix llvm`
 echo "LLVM_CC:=${LLVM_PREFIX}/bin/clang"
 echo "LLVM_CXX:=${LLVM_PREFIX}/bin/clang++"
+echo "HOST_CC:=clang"
 echo "HOST_CXX:=clang++"
 echo "LLVM_LLD_LINK:=${LLVM_PREFIX}/bin/lld-link"
 echo "LLVM_LD_LLD:=${LLVM_PREFIX}/bin/ld.lld"

tools/Makefile

@@ -6,7 +6,7 @@ default: fontmaker
 include ../common.mk
 
 fontmaker: Makefile fontmaker.c
-	$(LLVM_CC) -o $@ fontmaker.c
+	$(HOST_CC) -o $@ fontmaker.c
 
 clean:
 	-rm fontmaker