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FindFLEX: Add a DEFINES_FILE option to specify flex-generated header (#15781)

This commit is contained in:
Chris Davies 2015-10-17 17:51:51 +01:00 committed by Brad King
parent c26ff8a90b
commit db3d85059c
1 changed files with 22 additions and 6 deletions
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28
Modules/FindFLEX.cmake
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@ -27,13 +27,17 @@
# #
# :: # ::
# #
# FLEX_TARGET(Name FlexInput FlexOutput [COMPILE_FLAGS <string>]) # FLEX_TARGET(Name FlexInput FlexOutput
# [COMPILE_FLAGS <string>]
# [DEFINES_FILE <string>]
# )
# #
# which creates a custom command to generate the <FlexOutput> file from # which creates a custom command to generate the <FlexOutput> file from
# the <FlexInput> file. If COMPILE_FLAGS option is specified, the next # the <FlexInput> file. If COMPILE_FLAGS option is specified, the next
# parameter is added to the flex command line. Name is an alias used to # parameter is added to the flex command line. If flex is configured to
# get details of this custom command. Indeed the macro defines the # output a header file, the DEFINES_FILE option may be used to specify its
# following variables: # name. Name is an alias used to get details of this custom command.
# Indeed the macro defines the following variables:
# #
# :: # ::
# #
@ -41,6 +45,7 @@
# FLEX_${Name}_OUTPUTS - the source file generated by the custom rule, an # FLEX_${Name}_OUTPUTS - the source file generated by the custom rule, an
# alias for FlexOutput # alias for FlexOutput
# FLEX_${Name}_INPUT - the flex source file, an alias for ${FlexInput} # FLEX_${Name}_INPUT - the flex source file, an alias for ${FlexInput}
# FLEX_${Name}_OUTPUT_HEADER - the header flex output, if any.
# #
# #
# #
@ -147,11 +152,13 @@ if(FLEX_EXECUTABLE)
#============================================================ #============================================================
# #
macro(FLEX_TARGET Name Input Output) macro(FLEX_TARGET Name Input Output)
set(FLEX_TARGET_outputs "${Output}")
set(FLEX_EXECUTABLE_opts "") set(FLEX_EXECUTABLE_opts "")
set(FLEX_TARGET_PARAM_OPTIONS) set(FLEX_TARGET_PARAM_OPTIONS)
set(FLEX_TARGET_PARAM_ONE_VALUE_KEYWORDS set(FLEX_TARGET_PARAM_ONE_VALUE_KEYWORDS
COMPILE_FLAGS COMPILE_FLAGS
DEFINES_FILE
) )
set(FLEX_TARGET_PARAM_MULTI_VALUE_KEYWORDS) set(FLEX_TARGET_PARAM_MULTI_VALUE_KEYWORDS)
@ -163,7 +170,7 @@ if(FLEX_EXECUTABLE)
${ARGN} ${ARGN}
) )
set(FLEX_TARGET_usage "FLEX_TARGET(<Name> <Input> <Output> [COMPILE_FLAGS <string>]") set(FLEX_TARGET_usage "FLEX_TARGET(<Name> <Input> <Output> [COMPILE_FLAGS <string>] [DEFINES_FILE <string>]")
if(NOT "${FLEX_TARGET_ARG_UNPARSED_ARGUMENTS}" STREQUAL "") if(NOT "${FLEX_TARGET_ARG_UNPARSED_ARGUMENTS}" STREQUAL "")
message(SEND_ERROR ${FLEX_TARGET_usage}) message(SEND_ERROR ${FLEX_TARGET_usage})
@ -172,8 +179,12 @@ if(FLEX_EXECUTABLE)
set(FLEX_EXECUTABLE_opts "${FLEX_TARGET_ARG_COMPILE_FLAGS}") set(FLEX_EXECUTABLE_opts "${FLEX_TARGET_ARG_COMPILE_FLAGS}")
separate_arguments(FLEX_EXECUTABLE_opts) separate_arguments(FLEX_EXECUTABLE_opts)
endif() endif()
if(NOT "${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 ${Output} add_custom_command(OUTPUT ${FLEX_TARGET_outputs}
COMMAND ${FLEX_EXECUTABLE} COMMAND ${FLEX_EXECUTABLE}
ARGS ${FLEX_EXECUTABLE_opts} -o${Output} ${Input} ARGS ${FLEX_EXECUTABLE_opts} -o${Output} ${Input}
DEPENDS ${Input} DEPENDS ${Input}
@ -184,6 +195,11 @@ if(FLEX_EXECUTABLE)
set(FLEX_${Name}_OUTPUTS ${Output}) set(FLEX_${Name}_OUTPUTS ${Output})
set(FLEX_${Name}_INPUT ${Input}) set(FLEX_${Name}_INPUT ${Input})
set(FLEX_${Name}_COMPILE_FLAGS ${FLEX_EXECUTABLE_opts}) set(FLEX_${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() endif()
endmacro() endmacro()
#============================================================ #============================================================