CMake/Modules/CMakeFindBinUtils.cmake

# search for additional tools required for C/C++ (and other languages ?)
#
# If the internal cmake variable _CMAKE_TOOLCHAIN_PREFIX is set, this is used
# as prefix for the tools (e.g. arm-elf-gcc etc.)
# If the cmake variable _CMAKE_TOOLCHAIN_LOCATION is set, the compiler is
# searched only there. The other tools are at first searched there, then
# also in the default locations.
#
# Sets the following variables:
#   CMAKE_AR
#   CMAKE_RANLIB
#   CMAKE_LINKER
#   CMAKE_STRIP
#   CMAKE_INSTALL_NAME_TOOL

# on UNIX, cygwin and mingw

#=============================================================================
# Copyright 2007-2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
#  License text for the above reference.)

# if it's the MS C/CXX compiler, search for link
if("${CMAKE_C_SIMULATE_ID}" STREQUAL "MSVC"
   OR "${CMAKE_CXX_SIMULATE_ID}" STREQUAL "MSVC"
   OR "${CMAKE_Fortran_SIMULATE_ID}" STREQUAL "MSVC"
   OR "${CMAKE_C_COMPILER_ID}" STREQUAL "MSVC"
   OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC"
   OR "${CMAKE_GENERATOR}" MATCHES "Visual Studio")

  find_program(CMAKE_LINKER NAMES link HINTS ${_CMAKE_TOOLCHAIN_LOCATION})

  mark_as_advanced(CMAKE_LINKER)

# in all other cases search for ar, ranlib, etc.
else()
  if(CMAKE_C_COMPILER_EXTERNAL_TOOLCHAIN)
    set(_CMAKE_TOOLCHAIN_LOCATION ${_CMAKE_TOOLCHAIN_LOCATION} ${CMAKE_C_COMPILER_EXTERNAL_TOOLCHAIN}/bin)
  endif()
  if(CMAKE_CXX_COMPILER_EXTERNAL_TOOLCHAIN)
    set(_CMAKE_TOOLCHAIN_LOCATION ${_CMAKE_TOOLCHAIN_LOCATION} ${CMAKE_CXX_COMPILER_EXTERNAL_TOOLCHAIN}/bin)
  endif()
  find_program(CMAKE_AR NAMES ${_CMAKE_TOOLCHAIN_PREFIX}ar${_CMAKE_TOOLCHAIN_SUFFIX} HINTS ${_CMAKE_TOOLCHAIN_LOCATION})

  find_program(CMAKE_RANLIB NAMES ${_CMAKE_TOOLCHAIN_PREFIX}ranlib HINTS ${_CMAKE_TOOLCHAIN_LOCATION})
  if(NOT CMAKE_RANLIB)
    set(CMAKE_RANLIB : CACHE INTERNAL "noop for ranlib")
  endif()

  find_program(CMAKE_STRIP NAMES ${_CMAKE_TOOLCHAIN_PREFIX}strip${_CMAKE_TOOLCHAIN_SUFFIX} HINTS ${_CMAKE_TOOLCHAIN_LOCATION})
  find_program(CMAKE_LINKER NAMES ${_CMAKE_TOOLCHAIN_PREFIX}ld HINTS ${_CMAKE_TOOLCHAIN_LOCATION})
  find_program(CMAKE_NM NAMES ${_CMAKE_TOOLCHAIN_PREFIX}nm HINTS ${_CMAKE_TOOLCHAIN_LOCATION})
  find_program(CMAKE_OBJDUMP NAMES ${_CMAKE_TOOLCHAIN_PREFIX}objdump HINTS ${_CMAKE_TOOLCHAIN_LOCATION})
  find_program(CMAKE_OBJCOPY NAMES ${_CMAKE_TOOLCHAIN_PREFIX}objcopy HINTS ${_CMAKE_TOOLCHAIN_LOCATION})

  mark_as_advanced(CMAKE_AR CMAKE_RANLIB CMAKE_STRIP CMAKE_LINKER CMAKE_NM CMAKE_OBJDUMP CMAKE_OBJCOPY)

endif()


# on Apple there really should be install_name_tool
if(APPLE)
  find_program(CMAKE_INSTALL_NAME_TOOL NAMES install_name_tool HINTS ${_CMAKE_TOOLCHAIN_LOCATION})

  if(NOT CMAKE_INSTALL_NAME_TOOL)
    message(FATAL_ERROR "Could not find install_name_tool, please check your installation.")
  endif()

  mark_as_advanced(CMAKE_INSTALL_NAME_TOOL)
endif()