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find-modules/FindGperf.cmake
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| 1 | #.rst: | ||||
|---|---|---|---|---|---|
| 2 | # FindGperf | ||||
| 3 | # ----------- | ||||
| 4 | # | ||||
| 5 | # Try to find GNU gperf. | ||||
| 6 | # | ||||
| 7 | # If the gperf executable is not in your PATH, you can provide | ||||
| 8 | # an alternative name or full path location with the ``Gperf_EXECUTABLE`` | ||||
| 9 | # variable. | ||||
| 10 | # | ||||
| 11 | # This will define the following variables: | ||||
| 12 | # | ||||
| 13 | # ``Gperf_FOUND`` | ||||
| 14 | # True if gperf is available. | ||||
| 15 | # | ||||
| 16 | # ``Gperf_EXECUTABLE`` | ||||
| 17 | # The gperf executable. | ||||
| 18 | # | ||||
| 19 | # If ``Gperf_FOUND`` is TRUE, it will also define the following imported | ||||
| 20 | # target: | ||||
| 21 | # | ||||
| 22 | # ``GPerf::Gperf`` | ||||
| 23 | # The gperf executable. | ||||
| 24 | # | ||||
| 25 | # and the following public function: | ||||
| 26 | # | ||||
| 27 | # ecm_gperf_generate(<GperfInput> <OutputFile> <OutputVariable> | ||||
| 28 | # [GENERATION_FLAGS <flags>]) | ||||
| 29 | # | ||||
| 30 | # Run ``gperf`` on ``<GperfInput>`` to generate ``<OutputFile>``, adding it to | ||||
| 31 | # the ``<OutputVariable>`` variable which contains the source for the target | ||||
| 32 | # where ``<OutputFile>`` is going to be built. The optional | ||||
| 33 | # ``GENERATION_FLAGS`` argument is needed to pass extra parameters to | ||||
| 34 | # ``gperf`` (note you cannot override that way the output file). | ||||
| 35 | # | ||||
| 36 | # A simple invocation would be: | ||||
| 37 | # | ||||
| 38 | # ecm_gperf_generate(simple.gperf simple.h MySources) | ||||
| 39 | # | ||||
| 40 | # Since 5.31.0. | ||||
| 41 | | ||||
| 42 | #============================================================================= | ||||
| 43 | # Copyright 2016 Pino Toscano <pino@kde.org> | ||||
| 44 | # | ||||
| 45 | # Redistribution and use in source and binary forms, with or without | ||||
| 46 | # modification, are permitted provided that the following conditions | ||||
| 47 | # are met: | ||||
| 48 | # | ||||
| 49 | # 1. Redistributions of source code must retain the copyright | ||||
| 50 | # notice, this list of conditions and the following disclaimer. | ||||
| 51 | # 2. Redistributions in binary form must reproduce the copyright | ||||
| 52 | # notice, this list of conditions and the following disclaimer in the | ||||
| 53 | # documentation and/or other materials provided with the distribution. | ||||
| 54 | # 3. The name of the author may not be used to endorse or promote products | ||||
| 55 | # derived from this software without specific prior written permission. | ||||
| 56 | # | ||||
| 57 | # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | ||||
| 58 | # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | ||||
| 59 | # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | ||||
| 60 | # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | ||||
| 61 | # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||||
| 62 | # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||||
| 63 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||||
| 64 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||||
| 65 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | ||||
| 66 | # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||||
| 67 | #============================================================================= | ||||
| 68 | | ||||
| 69 | include(${CMAKE_CURRENT_LIST_DIR}/ECMFindModuleHelpersStub.cmake) | ||||
| 70 | | ||||
| 71 | ecm_find_package_version_check(Gperf) | ||||
| 72 | | ||||
| 73 | # Find gperf | ||||
| 74 | find_program(Gperf_EXECUTABLE NAMES gperf) | ||||
| 75 | | ||||
| 76 | include(FindPackageHandleStandardArgs) | ||||
| 77 | find_package_handle_standard_args(Gperf | ||||
| 78 | FOUND_VAR | ||||
| 79 | Gperf_FOUND | ||||
| 80 | REQUIRED_VARS | ||||
| 81 | Gperf_EXECUTABLE | ||||
| 82 | ) | ||||
| 83 | | ||||
| 84 | mark_as_advanced(Gperf_EXECUTABLE) | ||||
| 85 | | ||||
| 86 | if (Gperf_FOUND) | ||||
| 87 | if (NOT TARGET GPerf::Gperf) | ||||
| 88 | add_executable(GPerf::Gperf IMPORTED) | ||||
| 89 | set_target_properties(GPerf::Gperf PROPERTIES | ||||
| 90 | IMPORTED_LOCATION "${Gperf_EXECUTABLE}" | ||||
| 91 | ) | ||||
| 92 | endif() | ||||
| 93 | endif() | ||||
| 94 | | ||||
| 95 | include(FeatureSummary) | ||||
| 96 | set_package_properties(Gperf PROPERTIES | ||||
| 97 | URL "http://www.gnu.org/software/gperf/" | ||||
| 98 | DESCRIPTION "Perfect hash function generator" | ||||
| 99 | ) | ||||
| 100 | | ||||
| 101 | | ||||
| 102 | include(CMakeParseArguments) | ||||
| 103 | | ||||
| 104 | function(ecm_gperf_generate input_file output_file out_var) | ||||
| 105 | # Parse arguments | ||||
| 106 | set(oneValueArgs GENERATION_FLAGS) | ||||
| 107 | cmake_parse_arguments(ARGS "" "${oneValueArgs}" "" ${ARGN}) | ||||
| 108 | | ||||
| 109 | if(ARGS_UNPARSED_ARGUMENTS) | ||||
| 110 | message(FATAL_ERROR "Unknown keywords given to ecm_gperf_generate(): \"${ARGS_UNPARSED_ARGUMENTS}\"") | ||||
| 111 | endif() | ||||
| 112 | | ||||
| 113 | get_filename_component(_infile ${input_file} ABSOLUTE) | ||||
| 114 | set(_extraopts "${ARGS_GENERATION_FLAGS}") | ||||
| 115 | separate_arguments(_extraopts) | ||||
| 116 | add_custom_command(OUTPUT ${output_file} | ||||
| 117 | COMMAND ${Gperf_EXECUTABLE} ${_extraopts} --output-file=${output_file} ${_infile} | ||||
| 118 | DEPENDS ${_infile} | ||||
| 119 | WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR} | ||||
| 120 | VERBATIM | ||||
| 121 | ) | ||||
| 122 | set(_outfile "${CMAKE_CURRENT_BINARY_DIR}/${output_file}") | ||||
| 123 | | ||||
| 124 | list(APPEND ${out_var} "${_outfile}") | ||||
| 125 | set(${out_var} ${${out_var}} PARENT_SCOPE) | ||||
| 126 | endfunction() | ||||