9db3116226
Ancient versions of CMake required else(), endif(), and similar block
termination commands to have arguments matching the command starting the
block. This is no longer the preferred style.
Run the following shell code:
for c in else endif endforeach endfunction endmacro endwhile; do
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done >convert.sed &&
git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' |
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xargs -0 sed -i -f convert.sed &&
rm convert.sed
176 lines
7.1 KiB
CMake
176 lines
7.1 KiB
CMake
# - Find bison executable and provides macros to generate custom build rules
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# The module defines the following variables:
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#
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# BISON_EXECUTABLE - path to the bison program
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# BISON_VERSION - version of bison
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# BISON_FOUND - true if the program was found
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#
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# The minimum required version of bison can be specified using the
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# standard CMake syntax, e.g. find_package(BISON 2.1.3)
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#
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# If bison is found, the module defines the macros:
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# BISON_TARGET(<Name> <YaccInput> <CodeOutput> [VERBOSE <file>]
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# [COMPILE_FLAGS <string>])
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# which will create a custom rule to generate a parser. <YaccInput> is
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# the path to a yacc file. <CodeOutput> is the name of the source file
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# generated by bison. A header file is also be generated, and contains
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# the token list. If COMPILE_FLAGS option is specified, the next
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# parameter is added in the bison command line. if VERBOSE option is
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# specified, <file> is created and contains verbose descriptions of the
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# grammar and parser. The macro defines a set of variables:
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# BISON_${Name}_DEFINED - true is the macro ran successfully
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# BISON_${Name}_INPUT - The input source file, an alias for <YaccInput>
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# BISON_${Name}_OUTPUT_SOURCE - The source file generated by bison
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# BISON_${Name}_OUTPUT_HEADER - The header file generated by bison
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# BISON_${Name}_OUTPUTS - The sources files generated by bison
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# BISON_${Name}_COMPILE_FLAGS - Options used in the bison command line
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#
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# ====================================================================
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# Example:
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#
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# find_package(BISON)
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# BISON_TARGET(MyParser parser.y ${CMAKE_CURRENT_BINARY_DIR}/parser.cpp)
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# add_executable(Foo main.cpp ${BISON_MyParser_OUTPUTS})
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# ====================================================================
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#=============================================================================
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# Copyright 2009 Kitware, Inc.
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# Copyright 2006 Tristan Carel
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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find_program(BISON_EXECUTABLE bison DOC "path to the bison executable")
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mark_as_advanced(BISON_EXECUTABLE)
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if(BISON_EXECUTABLE)
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# the bison commands should be executed with the C locale, otherwise
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# the message (which are parsed) may be translated
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set(_Bison_SAVED_LC_ALL "$ENV{LC_ALL}")
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set(ENV{LC_ALL} C)
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execute_process(COMMAND ${BISON_EXECUTABLE} --version
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OUTPUT_VARIABLE BISON_version_output
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ERROR_VARIABLE BISON_version_error
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RESULT_VARIABLE BISON_version_result
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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set(ENV{LC_ALL} ${_Bison_SAVED_LC_ALL})
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if(NOT ${BISON_version_result} EQUAL 0)
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message(SEND_ERROR "Command \"${BISON_EXECUTABLE} --version\" failed with output:\n${BISON_version_error}")
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else()
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# Bison++
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if("${BISON_version_output}" MATCHES "^bison\\+\\+")
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string(REGEX REPLACE "^bison\\+\\+ Version ([^,]+).*" "\\1"
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BISON_VERSION "${BISON_version_output}")
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# GNU Bison
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elseif("${BISON_version_output}" MATCHES "^bison[^+]")
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string(REGEX REPLACE "^bison \\(GNU Bison\\) ([^\n]+)\n.*" "\\1"
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BISON_VERSION "${BISON_version_output}")
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elseif("${BISON_version_output}" MATCHES "^GNU Bison ")
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string(REGEX REPLACE "^GNU Bison (version )?([^\n]+).*" "\\2"
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BISON_VERSION "${BISON_version_output}")
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endif()
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endif()
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# internal macro
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macro(BISON_TARGET_option_verbose Name BisonOutput filename)
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list(APPEND BISON_TARGET_cmdopt "--verbose")
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get_filename_component(BISON_TARGET_output_path "${BisonOutput}" PATH)
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get_filename_component(BISON_TARGET_output_name "${BisonOutput}" NAME_WE)
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add_custom_command(OUTPUT ${filename}
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COMMAND ${CMAKE_COMMAND}
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ARGS -E copy
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"${BISON_TARGET_output_path}/${BISON_TARGET_output_name}.output"
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"${filename}"
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DEPENDS
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"${BISON_TARGET_output_path}/${BISON_TARGET_output_name}.output"
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COMMENT "[BISON][${Name}] Copying bison verbose table to ${filename}"
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WORKING_DIRECTORY ${CMAKE_SOURCE_DIR})
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set(BISON_${Name}_VERBOSE_FILE ${filename})
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list(APPEND BISON_TARGET_extraoutputs
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"${BISON_TARGET_output_path}/${BISON_TARGET_output_name}.output")
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endmacro()
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# internal macro
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macro(BISON_TARGET_option_extraopts Options)
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set(BISON_TARGET_extraopts "${Options}")
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separate_arguments(BISON_TARGET_extraopts)
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list(APPEND BISON_TARGET_cmdopt ${BISON_TARGET_extraopts})
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endmacro()
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#============================================================
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# BISON_TARGET (public macro)
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#============================================================
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#
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macro(BISON_TARGET Name BisonInput BisonOutput)
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set(BISON_TARGET_output_header "")
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set(BISON_TARGET_cmdopt "")
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set(BISON_TARGET_outputs "${BisonOutput}")
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if(NOT ${ARGC} EQUAL 3 AND NOT ${ARGC} EQUAL 5 AND NOT ${ARGC} EQUAL 7)
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message(SEND_ERROR "Usage")
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else()
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# Parsing parameters
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if(${ARGC} GREATER 5 OR ${ARGC} EQUAL 5)
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if("${ARGV3}" STREQUAL "VERBOSE")
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BISON_TARGET_option_verbose(${Name} ${BisonOutput} "${ARGV4}")
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endif()
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if("${ARGV3}" STREQUAL "COMPILE_FLAGS")
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BISON_TARGET_option_extraopts("${ARGV4}")
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endif()
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endif()
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if(${ARGC} EQUAL 7)
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if("${ARGV5}" STREQUAL "VERBOSE")
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BISON_TARGET_option_verbose(${Name} ${BisonOutput} "${ARGV6}")
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endif()
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if("${ARGV5}" STREQUAL "COMPILE_FLAGS")
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BISON_TARGET_option_extraopts("${ARGV6}")
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endif()
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endif()
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# Header's name generated by bison (see option -d)
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list(APPEND BISON_TARGET_cmdopt "-d")
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string(REGEX REPLACE "^(.*)(\\.[^.]*)$" "\\2" _fileext "${ARGV2}")
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string(REPLACE "c" "h" _fileext ${_fileext})
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string(REGEX REPLACE "^(.*)(\\.[^.]*)$" "\\1${_fileext}"
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BISON_${Name}_OUTPUT_HEADER "${ARGV2}")
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list(APPEND BISON_TARGET_outputs "${BISON_${Name}_OUTPUT_HEADER}")
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add_custom_command(OUTPUT ${BISON_TARGET_outputs}
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${BISON_TARGET_extraoutputs}
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COMMAND ${BISON_EXECUTABLE}
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ARGS ${BISON_TARGET_cmdopt} -o ${ARGV2} ${ARGV1}
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DEPENDS ${ARGV1}
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COMMENT "[BISON][${Name}] Building parser with bison ${BISON_VERSION}"
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
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# define target variables
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set(BISON_${Name}_DEFINED TRUE)
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set(BISON_${Name}_INPUT ${ARGV1})
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set(BISON_${Name}_OUTPUTS ${BISON_TARGET_outputs})
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set(BISON_${Name}_COMPILE_FLAGS ${BISON_TARGET_cmdopt})
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set(BISON_${Name}_OUTPUT_SOURCE "${BisonOutput}")
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endif()
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endmacro()
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#
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#============================================================
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endif()
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(BISON REQUIRED_VARS BISON_EXECUTABLE
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VERSION_VAR BISON_VERSION)
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# FindBISON.cmake ends here
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