lldb/cmake/modules/LLDBGenerateConfig.cmake

   1 # This file contains all the logic for running configure-time checks
   2
   3 include(CheckSymbolExists)
   4 include(CheckIncludeFile)
   5 include(CheckIncludeFiles)
   6 include(CheckLibraryExists)
   7
   8 set(CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE)
   9 check_symbol_exists(ppoll poll.h HAVE_PPOLL)
  10 check_symbol_exists(ptsname_r stdlib.h HAVE_PTSNAME_R)
  11 set(CMAKE_REQUIRED_DEFINITIONS)
  12 check_cxx_symbol_exists(accept4 "sys/socket.h" HAVE_ACCEPT4)
  13
  14 check_include_file(termios.h HAVE_TERMIOS_H)
  15 check_include_files("sys/types.h;sys/event.h" HAVE_SYS_EVENT_H)
  16
  17 check_cxx_symbol_exists(process_vm_readv "sys/uio.h" HAVE_PROCESS_VM_READV)
  18 check_cxx_symbol_exists(__NR_process_vm_readv "sys/syscall.h" HAVE_NR_PROCESS_VM_READV)
  19
  20 check_library_exists(compression compression_encode_buffer "" HAVE_LIBCOMPRESSION)
  21
  22 set(LLDB_INSTALL_LIBDIR_BASENAME "lib${LLDB_LIBDIR_SUFFIX}")
  23
  24 # These checks exist in LLVM's configuration, so I want to match the LLVM names
  25 # so that the check isn't duplicated, but we translate them into the LLDB names
  26 # so that I don't have to change all the uses at the moment.
  27 set(LLDB_ENABLE_TERMIOS ${HAVE_TERMIOS_H})
  28 if (UNIX)
  29   set(LLDB_ENABLE_POSIX ON)
  30 else()
  31   set(LLDB_ENABLE_POSIX OFF)
  32 endif()
  33
  34 if(NOT LLDB_CONFIG_HEADER_INPUT)
  35  set(LLDB_CONFIG_HEADER_INPUT ${LLDB_INCLUDE_ROOT}/lldb/Host/Config.h.cmake)
  36 endif()
  37
  38 if(NOT LLDB_CONFIG_HEADER_OUTPUT)
  39  set(LLDB_CONFIG_HEADER_OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/include/lldb/Host/Config.h)
  40 endif()
  41
  42 # This should be done at the end
  43 configure_file(
  44   ${LLDB_CONFIG_HEADER_INPUT}
  45   ${LLDB_CONFIG_HEADER_OUTPUT}
  46   )