[英]Converting Makefile to CMake using Flex and Bison
我正在學習 Bison/Flex 並想下載已經制作的 C++ 代碼。我發現這篇( http://www.jonathanbeard.io/tutorials/FlexBisonC++ )文章已經創建了解析器。 現在我想轉換這個(工作)Makefile
CC ?= clang
CXX ?= clang++
EXE = my_wc
CDEBUG = -g -Wall
CXXDEBUG = -g -Wall
CSTD = -std=c99
CXXSTD = -std=c++14
CFLAGS = -Wno-deprecated-register -O0 $(CDEBUG) $(CSTD)
CXXFLAGS = -Wno-deprecated-register -O0 $(CXXDEBUG) $(CXXSTD)
CPPOBJ = main mc_driver
SOBJ = parser lexer
FILES = $(addsuffix .cpp, $(CPPOBJ))
OBJS = $(addsuffix .o, $(CPPOBJ))
CLEANLIST = $(addsuffix .o, $(OBJ)) $(OBJS) \
mc_parser.tab.cc mc_parser.tab.hh \
location.hh position.hh \
stack.hh mc_parser.output parser.o \
lexer.o mc_lexer.yy.cc $(EXE)\
.PHONY: all
all: wc
wc: $(FILES)
$(MAKE) $(SOBJ)
$(MAKE) $(OBJS)
$(CXX) $(CXXFLAGS) -o $(EXE) $(OBJS) parser.o lexer.o $(LIBS)
parser: mc_parser.yy
bison -d -v mc_parser.yy
$(CXX) $(CXXFLAGS) -c -o parser.o mc_parser.tab.cc
lexer: mc_lexer.l
flex --outfile=mc_lexer.yy.cc $<
$(CXX) $(CXXFLAGS) -c mc_lexer.yy.cc -o lexer.o
.PHONY: test
test:
cd test && ./test0.pl
.PHONY: clean
clean:
rm -rf $(CLEANLIST)
到 CMake 文件
PROJECT(CTM)
CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
SET(CMAKE_CXX_STANDARD 11)
FIND_PACKAGE(BISON)
FIND_PACKAGE(FLEX)
BISON_TARGET(
CTMParser
mc_parser.yy ${CMAKE_CURRENT_BINARY_DIR}/mc_parser.tab.cpp
)
FLEX_TARGET(
CTMLexer
mc_lexer.l ${CMAKE_CURRENT_BINARY_DIR}/mc_lexer.cpp
)
ADD_FLEX_BISON_DEPENDENCY(CTMLexer CTMParser)
INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
ADD_EXECUTABLE(ctm
main.cpp
mc_driver.cpp
${BISON_CTMParser_OUTPUTS}
${FLEX_CTMLexer_OUTPUTS}
)
Makefile 工作正常,但 CMake 以未定義的引用錯誤結束。
CMakeFiles/ctm.dir/mc_driver.cpp.o: In function `MC::MC_Driver::parse_helper(std::istream&)':
mc_driver.cpp:(.text+0x323): undefined reference to `MC::MC_Parser::MC_Parser(MC::MC_Scanner&, MC::MC_Driver&)'
有人可以幫助我嗎? 感謝您的任何回答。
編輯:更改錯字后,得到這個
stack.hh:47:9: error: redefinition of default argument for ‘class S’
class stack
通過更改 C++ 版本解決了問題 :) 我錯過了在 Makefile 中定義的 C++14 而我在 CMake C++11 中定義了 ..
PROJECT(CTM)
CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
>>SET(CMAKE_CXX_STANDARD 11)
<<SET(CMAKE_CXX_STANDARD 14)
FIND_PACKAGE(BISON)
FIND_PACKAGE(FLEX)
BISON_TARGET(
CTMParser
mc_parser.yy ${CMAKE_CURRENT_BINARY_DIR}/mc_parser.tab.cpp
)
FLEX_TARGET(
CTMLexer
mc_lexer.l ${CMAKE_CURRENT_BINARY_DIR}/mc_lexer.cpp
)
ADD_FLEX_BISON_DEPENDENCY(CTMLexer CTMParser)
INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
ADD_EXECUTABLE(ctm
main.cpp
mc_driver.cpp
${BISON_CTMParser_OUTPUTS}
${FLEX_CTMLexer_OUTPUTS}
)
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