Flex/Bison 目标不存在

Question

我的项目中有一个子目录结构，其中有两个 cmake 文件。其中之一应该是一个编译器，使用flex和bison，但是cmake给了我一个我不太明白的错误：

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cmake_minimum_required(VERSION 2.8)\n\nproject(leaf)\n\nadd_subdirectory(leafc)\n

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并在目录中leafc：

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find_package(BISON)\nfind_package(FLEX)\n\nBISON_TARGET(LeafParser ${CMAKE_CURRENT_SOURCE_DIR}/parser.y ${CMAKE_CURRENT_BINARY_DIR}/parser.cpp)\nFLEX_TARGET(LeafScanner ${CMAKE_CURRENT_SOURCE_DIR}/lexer.l  ${CMAKE_CURRENT_BIANRY_DIR}/lexer.cpp)\nADD_FLEX_BISON_DEPENDENCY(LeafParser LeafScanner)\n\ninclude_directories(${CMAKE_CURRENT_BINARY_DIR})\nadd_executable(leafc main.cpp ${BISON_LeafParser_OUTPUTS} ${FLEX_LeafScanner_OUTPUTS})\n

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但我在尝试时收到此错误cmake .

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CMake Error at /usr/share/cmake-2.8/Modules/FindFLEX.cmake:132 (MESSAGE):\n  Flex target `LeafParser' does not exists.\nCall Stack (most recent call first):\n  leafc/CMakeLists.txt:6 (ADD_FLEX_BISON_DEPENDENCY)\n\nCMake Error at /usr/share/cmake-2.8/Modules/FindFLEX.cmake:136 (MESSAGE):\n  Bison target `LeafScanner' does not exists.\nCall Stack (most recent call first):\n  leafc/CMakeLists.txt:6 (ADD_FLEX_BISON_DEPENDENCY)\n\nCMake Error at /usr/share/cmake-2.8/Modules/FindFLEX.cmake:139 (SET_SOURCE_FILES_PROPERTIES):\n  set_source_files_properties called with incorrect number of arguments.\nCall Stack (most recent call first):\n  leafc/CMakeLists.txt:6 (ADD_FLEX_BISON_DEPENDENCY)\n\n-- Configuring incomplete, errors occurred!\n

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文件在那里：

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\xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 CMakeLists.txt\n\xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 leafc\n\xe2\x94\x82\xc2\xa0\xc2\xa0 \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 CMakeLists.txt\n\xe2\x94\x82\xc2\xa0\xc2\xa0 \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 lexer.l\n\xe2\x94\x82\xc2\xa0\xc2\xa0 \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 main.cpp\n\xe2\x94\x82\xc2\xa0\xc2\xa0 \xe2\x94\x94\xe2\x94\x80\xe2\x94\x80 parser.y\n\xe2\x94\x94\xe2\x94\x80\xe2\x94\x80 README\n

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那么我做错了什么？

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Answer 1

看来你只是把论点搞混ADD_FLEX_BISON_DEPENDENCY了。尝试：

ADD_FLEX_BISON_DEPENDENCY(LeafScanner LeafParser)

此外，您的通话中存在拼写错误FLEX_TARGET（CMAKE_CURRENT_BIANRY_DIR ）。