cmake/Languages.cmake

   1 set(CMAKE_EXPORT_COMPILE_COMMANDS 1 CACHE BOOL "Enable/Disable output of compile commands during generation.")
   2 mark_as_advanced(CMAKE_EXPORT_COMPILE_COMMANDS)
   3 if(NOT DEFINED CACHE{LIBA_CXX})
   4   file(GLOB_RECURSE has_cxx *.cc *.hh *.cpp *.hpp *.cxx *.hxx *.ixx *.ipp *.txx *.tpp *.mpp *.cppm)
   5   if(has_cxx)
   6     option(LIBA_CXX "Enable/Disable C++" 1)
   7   else()
   8     option(LIBA_CXX "Enable/Disable C++" 0)
   9   endif()
  10   set(has_cxx)
  11 endif()
  12 list(FIND LANGUAGES CXX index)
  13 if(${index} EQUAL -1 AND LIBA_CXX)
  14   list(INSERT LANGUAGES 0 CXX)
  15 endif()
  16 list(FIND LANGUAGES C index)
  17 if(${index} EQUAL -1)
  18   list(INSERT LANGUAGES 0 C)
  19 endif()
  20 # default C standard
  21 if(NOT CMAKE_C_STANDARD)
  22   set(CMAKE_C_STANDARD 11)
  23 endif()
  24 if(NOT CMAKE_C_EXTENSIONS)
  25   set(CMAKE_C_EXTENSIONS 0)
  26 endif()
  27 if(NOT CMAKE_C_STANDARD_REQUIRED)
  28   set(CMAKE_C_STANDARD_REQUIRED 0)
  29 endif()
  30 # default C++ standard
  31 if(NOT CMAKE_CXX_STANDARD)
  32   set(CMAKE_CXX_STANDARD 11)
  33 endif()
  34 if(NOT CMAKE_CXX_EXTENSIONS)
  35   set(CMAKE_CXX_EXTENSIONS 0)
  36 endif()
  37 if(NOT CMAKE_CXX_STANDARD_REQUIRED)
  38   set(CMAKE_CXX_STANDARD_REQUIRED 0)
  39 endif()
  40 if(CMAKE_C_COMPILER_ID MATCHES "TinyCC")
  41   string(FIND CMAKE_C_FLAGS "-std=c${CMAKE_C_STANDARD}" index)
  42   if(${index} EQUAL -1)
  43     string(STRIP "${CMAKE_C_FLAGS} -std=c${CMAKE_C_STANDARD}" CMAKE_C_FLAGS)
  44   endif()
  45 endif()
  46 set(index)