import from github

tools/preproc/Makefile

@@ -0,0 +1,26 @@
+CXX ?= g++
+
+CXXFLAGS := -std=c++11 -O2 -Wall -Wno-switch -Werror
+
+SRCS := asm_file.cpp c_file.cpp charmap.cpp preproc.cpp string_parser.cpp \
+	utf8.cpp
+
+HEADERS := asm_file.h c_file.h char_util.h charmap.h preproc.h string_parser.h \
+	utf8.h
+
+ifeq ($(OS),Windows_NT)
+EXE := .exe
+else
+EXE :=
+endif
+
+.PHONY: all clean
+
+all: preproc$(EXE)
+	@:
+
+preproc$(EXE): $(SRCS) $(HEADERS)
+	$(CXX) $(CXXFLAGS) $(SRCS) -o $@ $(LDFLAGS)
+
+clean:
+	$(RM) preproc preproc.exe