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cmake_minimum_required(VERSION 3.0.2 FATAL_ERROR)
# Generates files for MIME type <-> extension conversions
# DEPENDS ON: gperf grep bash/powershell
file(MAKE_DIRECTORY auto)
set(TDMIME_SOURCE
${CMAKE_CURRENT_SOURCE_DIR}/auto/mime_type_to_extension.cpp
${CMAKE_CURRENT_SOURCE_DIR}/auto/extension_to_mime_type.cpp
)
set(TDMIME_AUTO
${TDMIME_SOURCE}
PARENT_SCOPE
)
add_custom_target(tdmime_auto DEPENDS ${TDMIME_SOURCE})
if (NOT CMAKE_CROSSCOMPILING)
find_program(GPERF_EXECUTABLE gperf)
if (NOT GPERF_EXECUTABLE)
message(FATAL_ERROR "Could NOT find gperf. Path to gperf needs to be specified manually, i.e. 'cmake -DGPERF_EXECUTABLE:FILEPATH=\"<path to gperf executable>\" .')")
endif()
set(GPERF_FILES
${CMAKE_CURRENT_SOURCE_DIR}/auto/mime_type_to_extension.gperf
${CMAKE_CURRENT_SOURCE_DIR}/auto/extension_to_mime_type.gperf
)
set(GPERF_GEN_SOURCE generate_mime_types_gperf.cpp)
add_executable(generate_mime_types_gperf ${GPERF_GEN_SOURCE})
add_custom_command(
OUTPUT ${GPERF_FILES}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMAND generate_mime_types_gperf mime_types.txt ${GPERF_FILES}
DEPENDS generate_mime_types_gperf mime_types.txt
)
if (WIN32)
set(MIME_TYPE_TO_EXTENSION_CMD ${GPERF_EXECUTABLE} -m100 --output-file=auto/mime_type_to_extension.cpp auto/mime_type_to_extension.gperf)
else()
set(MIME_TYPE_TO_EXTENSION_CMD ${GPERF_EXECUTABLE} -m100 auto/mime_type_to_extension.gperf | grep -v __gnu_inline__ > auto/mime_type_to_extension.cpp)
endif()
add_custom_command(
OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/auto/mime_type_to_extension.cpp
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMAND ${MIME_TYPE_TO_EXTENSION_CMD}
DEPENDS auto/mime_type_to_extension.gperf
)
if (WIN32)
set(EXTENSION_TO_MIME_TYPE_CMD ${GPERF_EXECUTABLE} -m100 --output-file=auto/extension_to_mime_type.cpp auto/extension_to_mime_type.gperf)
else()
set(EXTENSION_TO_MIME_TYPE_CMD ${GPERF_EXECUTABLE} -m100 auto/extension_to_mime_type.gperf | grep -v __gnu_inline__ > auto/extension_to_mime_type.cpp)
endif()
add_custom_command(
OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/auto/extension_to_mime_type.cpp
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMAND ${EXTENSION_TO_MIME_TYPE_CMD}
DEPENDS auto/extension_to_mime_type.gperf
)
endif()
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