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Diffstat (limited to 'share/cmake-3.16/Modules/FindFLEX.cmake')
| -rw-r--r-- | share/cmake-3.16/Modules/FindFLEX.cmake | 221 |
1 files changed, 0 insertions, 221 deletions
diff --git a/share/cmake-3.16/Modules/FindFLEX.cmake b/share/cmake-3.16/Modules/FindFLEX.cmake deleted file mode 100644 index d22b7ec..0000000 --- a/share/cmake-3.16/Modules/FindFLEX.cmake +++ /dev/null @@ -1,221 +0,0 @@ -# Distributed under the OSI-approved BSD 3-Clause License. See accompanying -# file Copyright.txt or https://cmake.org/licensing for details. - -#[=======================================================================[.rst: -FindFLEX --------- - -Find Fast Lexical Analyzer (Flex) executable and provides a macro -to generate custom build rules - - - -The module defines the following variables: - -:: - - FLEX_FOUND - True is flex executable is found - FLEX_EXECUTABLE - the path to the flex executable - FLEX_VERSION - the version of flex - FLEX_LIBRARIES - The flex libraries - FLEX_INCLUDE_DIRS - The path to the flex headers - - - -The minimum required version of flex can be specified using the -standard syntax, e.g. :command:`find_package(FLEX 2.5.13)` - - - -If flex is found on the system, the module provides the macro: - -:: - - FLEX_TARGET(Name FlexInput FlexOutput - [COMPILE_FLAGS <string>] - [DEFINES_FILE <string>] - ) - -which creates a custom command to generate the ``FlexOutput`` file from -the ``FlexInput`` file. If ``COMPILE_FLAGS`` option is specified, the next -parameter is added to the flex command line. If flex is configured to -output a header file, the ``DEFINES_FILE`` option may be used to specify its -name. Name is an alias used to get details of this custom command. -Indeed the macro defines the following variables: - -:: - - FLEX_${Name}_DEFINED - true is the macro ran successfully - FLEX_${Name}_OUTPUTS - the source file generated by the custom rule, an - alias for FlexOutput - FLEX_${Name}_INPUT - the flex source file, an alias for ${FlexInput} - FLEX_${Name}_OUTPUT_HEADER - the header flex output, if any. - - - -Flex scanners often use tokens defined by Bison: the code generated -by Flex depends of the header generated by Bison. This module also -defines a macro: - -:: - - ADD_FLEX_BISON_DEPENDENCY(FlexTarget BisonTarget) - -which adds the required dependency between a scanner and a parser -where ``FlexTarget`` and ``BisonTarget`` are the first parameters of -respectively ``FLEX_TARGET`` and ``BISON_TARGET`` macros. - -:: - - ==================================================================== - Example: - - - -:: - - find_package(BISON) - find_package(FLEX) - - - -:: - - BISON_TARGET(MyParser parser.y ${CMAKE_CURRENT_BINARY_DIR}/parser.cpp) - FLEX_TARGET(MyScanner lexer.l ${CMAKE_CURRENT_BINARY_DIR}/lexer.cpp) - ADD_FLEX_BISON_DEPENDENCY(MyScanner MyParser) - - - -:: - - include_directories(${CMAKE_CURRENT_BINARY_DIR}) - add_executable(Foo - Foo.cc - ${BISON_MyParser_OUTPUTS} - ${FLEX_MyScanner_OUTPUTS} - ) - target_link_libraries(Foo ${FLEX_LIBRARIES}) - ==================================================================== -#]=======================================================================] - -find_program(FLEX_EXECUTABLE NAMES flex win_flex DOC "path to the flex executable") -mark_as_advanced(FLEX_EXECUTABLE) - -find_library(FL_LIBRARY NAMES fl - DOC "Path to the fl library") - -find_path(FLEX_INCLUDE_DIR FlexLexer.h - DOC "Path to the flex headers") - -mark_as_advanced(FL_LIBRARY FLEX_INCLUDE_DIR) - -set(FLEX_INCLUDE_DIRS ${FLEX_INCLUDE_DIR}) -set(FLEX_LIBRARIES ${FL_LIBRARY}) - -if(FLEX_EXECUTABLE) - - execute_process(COMMAND ${FLEX_EXECUTABLE} --version - OUTPUT_VARIABLE FLEX_version_output - ERROR_VARIABLE FLEX_version_error - RESULT_VARIABLE FLEX_version_result - OUTPUT_STRIP_TRAILING_WHITESPACE) - if(NOT ${FLEX_version_result} EQUAL 0) - if(FLEX_FIND_REQUIRED) - message(SEND_ERROR "Command \"${FLEX_EXECUTABLE} --version\" failed with output:\n${FLEX_version_output}\n${FLEX_version_error}") - else() - message("Command \"${FLEX_EXECUTABLE} --version\" failed with output:\n${FLEX_version_output}\n${FLEX_version_error}\nFLEX_VERSION will not be available") - endif() - else() - # older versions of flex printed "/full/path/to/executable version X.Y" - # newer versions use "basename(executable) X.Y" - get_filename_component(FLEX_EXE_NAME_WE "${FLEX_EXECUTABLE}" NAME_WE) - get_filename_component(FLEX_EXE_EXT "${FLEX_EXECUTABLE}" EXT) - string(REGEX REPLACE "^.*${FLEX_EXE_NAME_WE}(${FLEX_EXE_EXT})?\"? (version )?([0-9]+[^ ]*)( .*)?$" "\\3" - FLEX_VERSION "${FLEX_version_output}") - unset(FLEX_EXE_EXT) - unset(FLEX_EXE_NAME_WE) - endif() - - #============================================================ - # FLEX_TARGET (public macro) - #============================================================ - # - macro(FLEX_TARGET Name Input Output) - set(FLEX_TARGET_outputs "${Output}") - set(FLEX_EXECUTABLE_opts "") - - set(FLEX_TARGET_PARAM_OPTIONS) - set(FLEX_TARGET_PARAM_ONE_VALUE_KEYWORDS - COMPILE_FLAGS - DEFINES_FILE - ) - set(FLEX_TARGET_PARAM_MULTI_VALUE_KEYWORDS) - - cmake_parse_arguments( - FLEX_TARGET_ARG - "${FLEX_TARGET_PARAM_OPTIONS}" - "${FLEX_TARGET_PARAM_ONE_VALUE_KEYWORDS}" - "${FLEX_TARGET_MULTI_VALUE_KEYWORDS}" - ${ARGN} - ) - - set(FLEX_TARGET_usage "FLEX_TARGET(<Name> <Input> <Output> [COMPILE_FLAGS <string>] [DEFINES_FILE <string>]") - - if(NOT "${FLEX_TARGET_ARG_UNPARSED_ARGUMENTS}" STREQUAL "") - message(SEND_ERROR ${FLEX_TARGET_usage}) - else() - if(NOT "${FLEX_TARGET_ARG_COMPILE_FLAGS}" STREQUAL "") - set(FLEX_EXECUTABLE_opts "${FLEX_TARGET_ARG_COMPILE_FLAGS}") - separate_arguments(FLEX_EXECUTABLE_opts) - endif() - if(NOT "${FLEX_TARGET_ARG_DEFINES_FILE}" STREQUAL "") - list(APPEND FLEX_TARGET_outputs "${FLEX_TARGET_ARG_DEFINES_FILE}") - list(APPEND FLEX_EXECUTABLE_opts --header-file=${FLEX_TARGET_ARG_DEFINES_FILE}) - endif() - - add_custom_command(OUTPUT ${FLEX_TARGET_outputs} - COMMAND ${FLEX_EXECUTABLE} ${FLEX_EXECUTABLE_opts} -o${Output} ${Input} - VERBATIM - DEPENDS ${Input} - COMMENT "[FLEX][${Name}] Building scanner with flex ${FLEX_VERSION}" - WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}) - - set(FLEX_${Name}_DEFINED TRUE) - set(FLEX_${Name}_OUTPUTS ${Output}) - set(FLEX_${Name}_INPUT ${Input}) - set(FLEX_${Name}_COMPILE_FLAGS ${FLEX_EXECUTABLE_opts}) - if("${FLEX_TARGET_ARG_DEFINES_FILE}" STREQUAL "") - set(FLEX_${Name}_OUTPUT_HEADER "") - else() - set(FLEX_${Name}_OUTPUT_HEADER ${FLEX_TARGET_ARG_DEFINES_FILE}) - endif() - endif() - endmacro() - #============================================================ - - - #============================================================ - # ADD_FLEX_BISON_DEPENDENCY (public macro) - #============================================================ - # - macro(ADD_FLEX_BISON_DEPENDENCY FlexTarget BisonTarget) - - if(NOT FLEX_${FlexTarget}_OUTPUTS) - message(SEND_ERROR "Flex target `${FlexTarget}' does not exist.") - endif() - - if(NOT BISON_${BisonTarget}_OUTPUT_HEADER) - message(SEND_ERROR "Bison target `${BisonTarget}' does not exist.") - endif() - - set_source_files_properties(${FLEX_${FlexTarget}_OUTPUTS} - PROPERTIES OBJECT_DEPENDS ${BISON_${BisonTarget}_OUTPUT_HEADER}) - endmacro() - #============================================================ - -endif() - -include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) -FIND_PACKAGE_HANDLE_STANDARD_ARGS(FLEX REQUIRED_VARS FLEX_EXECUTABLE - VERSION_VAR FLEX_VERSION) |