cmake/FindGem.cmake

   1 #=============================================================================
   2 # Copyright (c) 2019 Harald Sitter <sitter@kde.org>
   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 # In this scope it's the dir we are in, in the function scope it will be the
  29 # caller's dir. So, keep our dir in a var.
  30 set(FINDGEM_MODULES_DIR ${CMAKE_CURRENT_LIST_DIR})
  31
  32 function(find_gem GEM_NAME)
  33     set(GEM_PACKAGE "Gem:${GEM_NAME}")
  34
  35     configure_file(${FINDGEM_MODULES_DIR}/FindGem.cmake.in Find${GEM_PACKAGE}.cmake @ONLY)
  36
  37     set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_BINARY_DIR}" ${CMAKE_MODULE_PATH})
  38     find_package(${GEM_PACKAGE} ${ARGN})
  39 endfunction()