development/cmake/modules/LyXMacros.cmake

   1 #
   2 #  Copyright (c) 2006-2011 Peter Kümmel, <syntheticpp@gmx.net>
   3 #
   4 #  Redistribution and use in source and binary forms, with or without
   5 #  modification, are permitted provided that the following conditions
   6 #  are met:
   7 #
   8 #  1. Redistributions of source code must retain the copyright
   9 #         notice, this list of conditions and the following disclaimer.
  10 #  2. Redistributions in binary form must reproduce the copyright
  11 #         notice, this list of conditions and the following disclaimer in the
  12 #         documentation and/or other materials provided with the distribution.
  13 #  3. The name of the author may not be used to endorse or promote products
  14 #         derived from this software without specific prior written permission.
  15 #
  16 #  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17 #  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18 #  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19 #  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20 #  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21 #  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22 #  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23 #  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24 #  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25 #  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26 #
  27
  28 include (MacroAddFileDependencies)
  29
  30 set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
  31
  32 macro(lyx_add_path _list _prefix)
  33         set(_tmp)
  34         foreach(_current ${${_list}})
  35                 set(_tmp ${_tmp} ${_prefix}/${_current})
  36         endforeach(_current)
  37         set(${_list} ${_tmp})
  38 endmacro(lyx_add_path _out _prefix)
  39
  40
  41 #create the implementation files from the ui files and add them
  42 #to the list of sources
  43 #usage: LYX_ADD_UI_FILES(foo_SRCS ${ui_files})
  44 macro(LYX_ADD_UI_FILES _sources _ui_files)
  45         set(uifiles})
  46         foreach (_current_FILE ${ARGN})
  47                 get_filename_component(_tmp_FILE ${_current_FILE} ABSOLUTE)
  48                 get_filename_component(_basename ${_tmp_FILE} NAME_WE)
  49                 set(_header ${CMAKE_CURRENT_BINARY_DIR}/ui_${_basename}.h)
  50
  51                 # we need to run uic and replace some things in the generated file
  52                 # this is done by executing the cmake script LyXuic.cmake
  53                 # ######
  54                 # Latest test showed on linux and windows show no bad consequeces,
  55                 # so we removed the call to LyXuic.cmake
  56                 qt_wrap_uifiles(${_header} ${_tmp_FILE} OPTIONS -tr lyx::qt_)
  57                 list(APPEND uifiles ${_header})
  58         endforeach()
  59         set(${_ui_files} ${uifiles})
  60 endmacro(LYX_ADD_UI_FILES)
  61
  62
  63
  64 macro(LYX_AUTOMOC)
  65         set(_matching_FILES)
  66         foreach (_current_FILE ${ARGN})
  67
  68                 get_filename_component(_abs_FILE ${_current_FILE} ABSOLUTE)
  69                 # if "SKIP_AUTOMOC" is set to true, we will not handle this file here.
  70                 # here. this is required to make bouic work correctly:
  71                 # we need to add generated .cpp files to the sources (to compile them),
  72                 # but we cannot let automoc handle them, as the .cpp files don't exist yet when
  73                 # cmake is run for the very first time on them -> however the .cpp files might
  74                 # exist at a later run. at that time we need to skip them, so that we don't add two
  75                 # different rules for the same moc file
  76                 get_source_file_property(_skip ${_abs_FILE} SKIP_AUTOMOC)
  77
  78                 if (EXISTS ${_abs_FILE} AND NOT _skip)
  79
  80                         file(READ ${_abs_FILE} _contents)
  81
  82                         get_filename_component(_abs_PATH ${_abs_FILE} PATH)
  83
  84                         string(REGEX MATCHALL "#include +[\"<]moc_[^ ]+\\.cpp[\">]" _match "${_contents}")
  85                         if (_match)
  86                                 foreach (_current_MOC_INC ${_match})
  87                                         string(REGEX MATCH "moc_[^ <\"]+\\.cpp" _current_MOC "${_current_MOC_INC}")
  88
  89                                         get_filename_component(_basename ${_current_MOC} NAME_WE)
  90
  91                                         string(LENGTH ${_basename} _length)
  92                                         MATH(EXPR _mocless_length ${_length}-4)
  93                                         STRING(SUBSTRING  ${_basename} 4 ${_mocless_length} _mocless_name )
  94
  95                                         set(_header ${_abs_PATH}/${_mocless_name}.h)
  96
  97                                         #message(STATUS "moc : ${_header}")
  98                                         #set(_header ${CMAKE_CURRENT_SOURCE_DIR}/${_basename}.h)
  99                                         #set(_header ${_abs_PATH}/${_basename}.h)
 100
 101                                         set(_moc  ${CMAKE_CURRENT_BINARY_DIR}/${_current_MOC})
 102                                         if (WIN32)
 103                                                 set(_def -D_WIN32)
 104                                         else()
 105                                                 set(_def)
 106                                         endif()
 107                                         #set(_moc ${_abs_PATH}/${_current_MOC})
 108                                         add_custom_command(OUTPUT ${_moc}
 109                                                           COMMAND ${QT_MOC_EXECUTABLE}
 110                                                           ARGS "-DQT_VERSION=${QTx_VERSION}" ${_def} ${_moc_INCS} ${_header} -o ${_moc}
 111                                                           MAIN_DEPENDENCY ${_header})
 112                                         macro_add_file_dependencies(${_abs_FILE} ${_moc})
 113                                         SET_SOURCE_FILES_PROPERTIES(${_moc} GENERATED)
 114                                 endforeach (_current_MOC_INC)
 115                         else()
 116                                 #message(STATUS "moc not found : ${_abs_FILE} ")
 117                         endif()
 118                 endif()
 119         endforeach (_current_FILE)
 120 endmacro (LYX_AUTOMOC)
 121
 122
 123 macro(lyx_const_touched_files _allinone_name _list)
 124         set(_file_list ${_allinone_name}_files)
 125         set(_file_const ${CMAKE_CURRENT_BINARY_DIR}/${_allinone_name}_const.C)
 126         set(_file_touched ${CMAKE_CURRENT_BINARY_DIR}/${_allinone_name}_touched.C)
 127
 128         # don't touch exisiting or non-empty file,
 129         # so a cmake re-run doesn't touch all created files
 130         set(_rebuild_file_const 0)
 131         if (NOT EXISTS ${_file_const})
 132                 set(_rebuild_file_const 1)
 133         else()
 134                 FILE(READ ${_file_const} _file_content)
 135                 if (NOT _file_content)
 136                         set(_rebuild_file_const 1)
 137                 endif()
 138         endif()
 139
 140         set(_rebuild_file_touched 0)
 141         if (NOT EXISTS ${_file_touched})
 142                 set(_rebuild_file_touched 1)
 143         else()
 144                 FILE(READ ${_file_touched} _file_content)
 145                 if (NOT _file_content)
 146                         set(_rebuild_file_touched 1)
 147                 endif()
 148         endif()
 149
 150         if (LYX_MERGE_REBUILD)
 151                 #message(STATUS "Merge files build: rebuilding generated files")
 152                 set(_rebuild_file_const 1)
 153                 set(_rebuild_file_touched 1)
 154         endif()
 155
 156         if (_rebuild_file_const)
 157                 file(WRITE  ${_file_const} "// autogenerated file \n//\n")
 158                 file(APPEND ${_file_const} "//   * clear or delete this file to build it again by cmake \n//\n\n")
 159         endif()
 160
 161         if (_rebuild_file_touched)
 162                 file(WRITE  ${_file_touched} "// autogenerated file \n//\n")
 163                 file(APPEND ${_file_touched} "//         * clear or delete this file to build it again by cmake \n//\n")
 164                 file(APPEND ${_file_touched} "//         * don't touch this file \n//\n\n")
 165                 file(APPEND ${_file_touched} "#define DONT_INCLUDE_CONST_FILES\n")
 166                 file(APPEND ${_file_touched} "#include \"${_file_const}\"\n\n\n")
 167         endif()
 168
 169         #add merged files also to the project so they become editable
 170                 if(${GROUP_CODE} MATCHES "flat")
 171                 lyx_add_info_files_no_group(${${_list}})
 172         else()
 173                 lyx_add_info_files(MergedFiles ${${_list}})
 174         endif()
 175
 176         set(${_file_list} ${_file_const} ${_file_touched} ${lyx_${groupname}_info_files})
 177
 178         foreach (_current_FILE ${${_list}})
 179                 get_filename_component(_abs_FILE ${_current_FILE} ABSOLUTE)
 180                 # don't include any generated files in the final-file
 181                 # because then cmake will not know the dependencies
 182                 get_source_file_property(_isGenerated ${_abs_FILE} GENERATED)
 183                 if (_isGenerated)
 184                         list(APPEND ${_file_list} ${_abs_FILE})
 185                 else()
 186                   GET_FILENAME_COMPONENT(_file_name ${_abs_FILE} NAME_WE)
 187                   STRING(REGEX REPLACE "-" "_" _file_name "${_file_name}")
 188                   set(__macro_name ${_file_name}___ASSUME_CONST)
 189
 190                   if (_rebuild_file_const)
 191                           file(APPEND ${_file_const}  "#define ${__macro_name}\n")
 192                           file(APPEND ${_file_const}  "#if defined(${__macro_name}) && !defined(DONT_INCLUDE_CONST_FILES)\n")
 193                           file(APPEND ${_file_const}  "#include \"${_abs_FILE}\"\n")
 194                           file(APPEND ${_file_const}  "#endif\n\n")
 195                   endif()
 196
 197                   if (_rebuild_file_touched)
 198                           file(APPEND ${_file_touched}  "#ifndef ${__macro_name}\n")
 199                           file(APPEND ${_file_touched}  "#include \"${_abs_FILE}\"\n")
 200                           file(APPEND ${_file_touched}  "#endif\n\n")
 201                   endif()
 202                 endif()
 203         endforeach (_current_FILE)
 204 endmacro(lyx_const_touched_files)
 205
 206 macro(LYX_OPTION_INIT)
 207         set(LYX_OPTIONS)
 208         set(LYX_OPTION_STRINGS)
 209 endmacro()
 210
 211
 212 macro(LYX_OPTION _name _description _default _sys)
 213         set(_msg OFF)
 214         if(${_sys} MATCHES "GCC")
 215                 set(_system CMAKE_COMPILER_IS_GNUCXX)
 216         elseif(${_sys} MATCHES "MAC")
 217                 set(_system APPLE)
 218         else()
 219                 set(_system ${_sys})
 220         endif()
 221         if(${_system} MATCHES "ALL")
 222                 option(LYX_${_name} ${_description} ${_default})
 223                 set(_msg ON)
 224         else()
 225                 if(${${_system}})
 226                         option(LYX_${_name} ${_description} ${_default})
 227                         set(_msg ON)
 228                 endif()
 229         endif()
 230         list(APPEND LYX_OPTIONS LYX_${_name})
 231         set(LYX_${_name}_description ${_description})
 232         set(LYX_${_name}_show_message ${_msg})
 233 endmacro()
 234
 235 macro(LYX_COMBO _name _description _default)
 236   set(_lyx_name "LYX_${_name}")
 237   set(${_lyx_name} ${_default} CACHE STRING "${_description}")
 238   set(_combo_list ${_default} ${ARGN})
 239   set_property(CACHE ${_lyx_name} PROPERTY STRINGS ${_combo_list})
 240   list(APPEND LYX_OPTIONS ${_lyx_name})
 241   set(${_lyx_name}_show_message ON)
 242   string(REGEX REPLACE ";" " " _use_list "${_combo_list}")
 243   set(${_lyx_name}_description "${_description} (${_use_list})")
 244   list(APPEND LYX_OPTION_STRINGS ${_lyx_name})
 245   # Now check the value
 246   list(FIND _combo_list ${${_lyx_name}} _idx)
 247   if (_idx LESS 0)
 248     message(FATAL_ERROR "${_lyx_name} set to \"${${_lyx_name}}\", but has to be only one of (${_use_list})")
 249   endif()
 250 endmacro()
 251
 252 macro(LYX_STRING _name _description _default)
 253   set(_lyx_name "LYX_${_name}")
 254   list(APPEND LYX_OPTIONS ${_lyx_name})
 255   set(${_lyx_name}_show_message ON)
 256   set(${_lyx_name}_description "${_description}")
 257   list(APPEND LYX_OPTION_STRINGS ${_lyx_name})
 258   # Now check the value
 259   # Should not contain ' '
 260   set(tmp_lyx_name ${${_lyx_name}})
 261   if (NOT "${${_lyx_name}}" STREQUAL "")
 262     if (NOT "${tmp_lyx_name}" MATCHES "^\\..*$")
 263       set(tmp_lyx_name ".${tmp_lyx_name}")
 264     endif()
 265     if (NOT "${tmp_lyx_name}" MATCHES "^\\.[a-zA-Z_0-9\\.]+$")
 266       message(FATAL_ERROR "Invalid string for lyx suffix (${tmp_lyx_name})")
 267     endif()
 268   endif()
 269   set(${_lyx_name} "${tmp_lyx_name}" CACHE STRING "${_description}" FORCE)
 270 endmacro()
 271
 272 macro(LYX_OPTION_LIST_ALL)
 273         if(UNIX)
 274                 set(run_cmake ${CMAKE_BINARY_DIR}/run_cmake.sh)
 275                 file(WRITE ${run_cmake} "#!/bin/bash \n")
 276                 execute_process(COMMAND chmod 755 ${run_cmake})
 277                 set(cont "\\\n")
 278         elseif(WIN32)
 279                 set(run_cmake ${CMAKE_BINARY_DIR}/run_cmake.bat)
 280                 file(WRITE ${run_cmake} "")
 281                 set(cont "<nul ^\n")
 282         endif()
 283         file(APPEND ${run_cmake} "cmake ${CMAKE_SOURCE_DIR}  ${cont}")
 284         file(APPEND ${run_cmake} " -G\"${CMAKE_GENERATOR}\"  ${cont}")
 285         foreach(_option ${LYX_OPTIONS})
 286                 if(${_option}_show_message OR ${ARGV0} STREQUAL "help")
 287                         get_property(_prop CACHE ${_option} PROPERTY STRINGS)
 288                         list(FIND LYX_OPTION_STRINGS ${_option} _index)
 289                         set(_type "BOOL")
 290                         if (${_index} GREATER -1)
 291                           #message(STATUS "${_option} is of type string")
 292                           set(_isset ${${_option}})
 293                           set(_type "STRING")
 294                         elseif(${_option})
 295                                 set(_isset ON)
 296                         else()
 297                                 set(_isset OFF)
 298                         endif()
 299                         string(SUBSTRING "${_option}:${_type}                            " 0 35 _var)
 300                         string(SUBSTRING "${_isset}           " 0 7 _val)
 301                         message(STATUS "${_var}= ${_val}: ${${_option}_description}")
 302                         file(APPEND ${run_cmake} " -D${_option}:${_type}=${${_option}}  ${cont}")
 303                 endif()
 304         endforeach()
 305         file(APPEND ${run_cmake} "\n")
 306         message(STATUS)
 307         message(STATUS "CMake command with options is available in shell script")
 308         message(STATUS "    '${run_cmake}'")
 309 endmacro()
 310
 311 macro(lyx_add_info_files group)
 312         foreach(_it ${ARGN})
 313                 if(NOT IS_DIRECTORY ${_it})
 314                         get_filename_component(name ${_it} NAME)
 315                         if(NOT ${_it} MATCHES "^/\\\\..*$;~$")
 316                                 set_source_files_properties(${_it} PROPERTIES HEADER_FILE_ONLY TRUE)
 317                                 set(lyx_${group}_info_files ${lyx_${group}_info_files} ${_it})
 318                         endif()
 319                 endif()
 320         endforeach()
 321         set(check_group ${group}) #cmake bug?
 322         if(check_group)
 323                 source_group(${group} FILES ${lyx_${group}_info_files})
 324         endif()
 325         set(lyx_info_files ${lyx_info_files} ${lyx_${group}_info_files})
 326 endmacro()
 327
 328 macro(lyx_add_info_files_no_group)
 329         lyx_add_info_files( "" ${ARGN})
 330 endmacro()
 331
 332 macro(lyx_find_info_files group files)
 333         file(GLOB _filelist ${files})
 334         lyx_add_info_files(${group} ${_filelist})
 335 endmacro()
 336
 337 macro(settestlabel testname)
 338   get_property(_lab_list TEST ${testname} PROPERTY LABELS)
 339   if(_lab_list)
 340     list(APPEND _lab_list "${ARGN}")
 341   else()
 342     set(_lab_list "${ARGN}")
 343   endif()
 344   list(REMOVE_DUPLICATES _lab_list)
 345   set_tests_properties(${testname} PROPERTIES LABELS "${_lab_list}")
 346 endmacro()
 347
 348 macro(sortlabellist listout)
 349   set(tmplist "")
 350   foreach(_lab ${ARGN})
 351     list(APPEND tmplist "${depth_${_lab}}${_lab}")
 352   endforeach()
 353   list(SORT tmplist)
 354   string(REGEX REPLACE ";[-0-9]+" ";" ${listout} ";${tmplist}")
 355 endmacro()
 356
 357 macro(createlabel reslabel first)
 358   set(${reslabel} ${first})
 359   foreach(_lab ${ARGN})
 360     set(${reslabel} "${${reslabel}}:${_lab}")
 361   endforeach()
 362 endmacro()
 363
 364 macro(setmarkedtestlabel testname)
 365   sortlabellist(mynewlablelist ${ARGN})
 366   createlabel(mynewlabel ${mynewlablelist})
 367   settestlabel(${testname} ${mynewlabel})
 368 endmacro()
 369
 370 macro(lyx_target_link_libraries _target)
 371   foreach(_lib ${ARGN})
 372     string(TOUPPER ${_lib} _ulib)
 373     if(${_ulib}_FOUND)
 374       #message(STATUS "target_link_libraries(${_target} ${${_lib}_LIBRARY})")
 375       target_link_libraries(${_target} ${${_lib}_LIBRARY})
 376     endif()
 377   endforeach()
 378 endmacro()
 379
 380 # Check if python module exists
 381 # Idea stolen from http://public.kitware.com/pipermail/cmake/2011-January/041666.html
 382 function(find_python_module module)
 383   string(TOUPPER ${module} module_upper)
 384   if(NOT LYX_PY_${module_upper})
 385     if(ARGC GREATER 1 AND ARGV1 STREQUAL "REQUIRED")
 386       set(LYX_PY_${module}_FIND_REQUIRED TRUE)
 387     endif()
 388     # A module's location is usually a directory, but for binary modules
 389     # it's a .so file.
 390     execute_process(COMMAND "${LYX_PYTHON_EXECUTABLE}" "-c"
 391       "import re, ${module}; print(re.compile('/__init__.py.*').sub('',${module}.__file__))"
 392       RESULT_VARIABLE _${module}_status
 393       OUTPUT_VARIABLE _${module}_location
 394       ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)
 395     if(NOT _${module}_status)
 396       set(LYX_PY_${module_upper} ${_${module}_location} CACHE STRING
 397         "Location of Python module ${module}")
 398     endif()
 399   endif()
 400   find_package_handle_standard_args(LYX_PY_${module} DEFAULT_MSG LYX_PY_${module_upper})
 401 endfunction(find_python_module)
 402
 403 macro(setstripped _varname)
 404         if(${ARGC} GREATER 1)
 405                 string(STRIP "${ARGV1}" _v)
 406                 if (_v MATCHES "^\\[\(.+\)\\]$")
 407                   set(_v ${CMAKE_MATCH_1})
 408                 endif()
 409                 if(USE_POSIX_PACKAGING)
 410                         string(TOLOWER ${_v} ${_varname})
 411                 else()
 412                         set(${_varname} ${_v})
 413                 endif()
 414         else()
 415                 set(${_varname})
 416         endif()
 417 endmacro(setstripped)
 418
 419 # Determine the version and build-type
 420 function(determineversionandbuildtype configfile package version dirs date buildtype)
 421   file(STRINGS "${configfile}" _config_lines)
 422   foreach(_c_l ${_config_lines} )
 423     if(_c_l MATCHES "^AC_INIT\\(\([^,]+\),\([^,]+\), *\\[\([^,]+\)\\] *,\(.*\)")
 424       # Not using CMAKE_MATCH_ directly is needed, because
 425       # its value is now changed inside macro setstripped
 426       set(_PB ${CMAKE_MATCH_1})
 427       set(_PV ${CMAKE_MATCH_2})
 428       set(_PBU ${CMAKE_MATCH_3})
 429       setstripped(PACKAGE_BASE ${_PB})
 430       setstripped(PACKAGE_VERSION ${_PV})
 431       setstripped(PACKAGE_BUGREPORT ${_PBU})
 432       set(${package} ${PACKAGE_BASE} ${PACKAGE_VERSION} ${PACKAGE_BUGREPORT} PARENT_SCOPE)
 433       if(PACKAGE_VERSION MATCHES "^\([0-9]+\)\\.\([0-9]+\)\(\\.\([0-9]+\)\(\\.\([0-9]+\)\)?\)?[-~]?\([A-Za-z]+[0-9]*\).*$")
 434         set(LYX_MAJOR_VERSION ${CMAKE_MATCH_1})
 435         set(LYX_MINOR_VERSION ${CMAKE_MATCH_2})
 436         set(LYX_RELEASE_LEVEL ${CMAKE_MATCH_4})
 437         set(LYX_RELEASE_PATCH ${CMAKE_MATCH_6})
 438         set(LYX_BUILD_TYPE_MATCH ${CMAKE_MATCH_7})
 439         string(TOLOWER "${LYX_BUILD_TYPE_MATCH}" LYX_BUILD_TYPE)
 440         set(LYX_DIR_VER "LYX_DIR_${CMAKE_MATCH_1}${CMAKE_MATCH_2}x")
 441         set(LYX_USERDIR_VER "LYX_USERDIR_${CMAKE_MATCH_1}${CMAKE_MATCH_2}x")
 442         if (NOT LYX_RELEASE_LEVEL)
 443           set(LYX_RELEASE_LEVEL 0)
 444         endif()
 445         if (NOT LYX_RELEASE_PATCH)
 446           set(LYX_RELEASE_PATCH 0)
 447         endif()
 448         set(LYX_VERSION "${LYX_MAJOR_VERSION}.${LYX_MINOR_VERSION}")
 449       endif()
 450     endif()
 451     if(_c_l MATCHES "^AC_SUBST\\( *LYX_DATE *, *\\[\\\"(.*)\\\"\\].*")
 452       set(LYX_DATE "${CMAKE_MATCH_1}")
 453     endif()
 454   endforeach(_c_l)
 455   set(${version} ${LYX_VERSION} ${LYX_MAJOR_VERSION} ${LYX_MINOR_VERSION} ${LYX_RELEASE_LEVEL} ${LYX_RELEASE_PATCH} PARENT_SCOPE)
 456   set(${dirs} ${LYX_DIR_VER} ${LYX_USERDIR_VER} PARENT_SCOPE)
 457   set(${date} ${LYX_DATE} PARENT_SCOPE)
 458   if(LYX_BUILD_TYPE MATCHES "^\(dev(el)?\)$")
 459     set(${buildtype} "development" PARENT_SCOPE)
 460   elseif(LYX_BUILD_TYPE MATCHES "^\(alpha|beta|rc|pre\)[0-9]*$")
 461     set(${buildtype} "prerelease" PARENT_SCOPE)
 462   elseif(LYX_BUILD_TYPE MATCHES "^$")
 463     set(${buildtype} "release" PARENT_SCOPE)
 464   else()
 465     set(${buildtype} "unknown" PARENT_SCOPE)
 466     message(FATAL_ERROR "\"${configfile}\": Unable to determine build-type from suffix \"${LYX_BUILD_TYPE}\" in AC_INIT macro")
 467   endif()
 468 endfunction(determineversionandbuildtype)
 469
 470 # determine known cmake cxx_std features but only if not greater than ${max_desired}
 471 function(lyxgetknowncmakestd max_desired result)
 472   set(tmp_list)
 473   set(CXX_STD_LIST)
 474   math(EXPR max_desired "${max_desired}+1")
 475   if (CMAKE_VERSION VERSION_LESS "3.9")
 476     list(APPEND tmp_list 98 11 14)
 477   else()
 478     foreach(_e ${CMAKE_CXX_COMPILE_FEATURES})
 479       if (_e MATCHES "^cxx_std_\(.*)")
 480         list(APPEND tmp_list ${CMAKE_MATCH_1})
 481       endif()
 482     endforeach()
 483   endif()
 484   list(REVERSE tmp_list)
 485   # Filter undesired from list
 486   foreach(i ${tmp_list})
 487     if (i LESS ${max_desired} OR i GREATER 89)
 488       list(APPEND CXX_STD_LIST ${i})
 489     endif()
 490   endforeach()
 491   set(${result} ${CXX_STD_LIST} PARENT_SCOPE)
 492 endfunction()
 493