third_party/waf/waflib/extras/clangxx_cross.py

   1 #!/usr/bin/env python
   2 # encoding: utf-8
   3 # Thomas Nagy 2009-2018 (ita)
   4 # DragoonX6 2018
   5
   6 """
   7 Detect the Clang++ C++ compiler
   8 This version is an attempt at supporting the -target and -sysroot flag of Clang++.
   9 """
  10
  11 from waflib.Tools import ccroot, ar, gxx
  12 from waflib.Configure import conf
  13 import waflib.extras.clang_cross_common
  14
  15 def options(opt):
  16         """
  17         Target triplet for clang++::
  18                         $ waf configure --clangxx-target-triple=x86_64-pc-linux-gnu
  19         """
  20         cxx_compiler_opts = opt.add_option_group('Configuration options')
  21         cxx_compiler_opts.add_option('--clangxx-target-triple', default=None,
  22                 help='Target triple for clang++',
  23                 dest='clangxx_target_triple')
  24         cxx_compiler_opts.add_option('--clangxx-sysroot', default=None,
  25                 help='Sysroot for clang++',
  26                 dest='clangxx_sysroot')
  27
  28 @conf
  29 def find_clangxx(conf):
  30         """
  31         Finds the program clang++, and executes it to ensure it really is clang++
  32         """
  33
  34         import os
  35
  36         cxx = conf.find_program('clang++', var='CXX')
  37
  38         if conf.options.clangxx_target_triple != None:
  39                 conf.env.append_value('CXX', ['-target', conf.options.clangxx_target_triple])
  40
  41         if conf.options.clangxx_sysroot != None:
  42                 sysroot = str()
  43
  44                 if os.path.isabs(conf.options.clangxx_sysroot):
  45                         sysroot = conf.options.clangxx_sysroot
  46                 else:
  47                         sysroot = os.path.normpath(os.path.join(os.getcwd(), conf.options.clangxx_sysroot))
  48
  49                 conf.env.append_value('CXX', ['--sysroot', sysroot])
  50
  51         conf.get_cc_version(cxx, clang=True)
  52         conf.env.CXX_NAME = 'clang'
  53
  54 @conf
  55 def clangxx_modifier_x86_64_w64_mingw32(conf):
  56         conf.gcc_modifier_win32()
  57
  58 @conf
  59 def clangxx_modifier_i386_w64_mingw32(conf):
  60         conf.gcc_modifier_win32()
  61
  62 @conf
  63 def clangxx_modifier_msvc(conf):
  64         v = conf.env
  65         v.cxxprogram_PATTERN = v.cprogram_PATTERN
  66         v.cxxshlib_PATTERN   = v.cshlib_PATTERN
  67
  68         v.CXXFLAGS_cxxshlib  = []
  69         v.LINKFLAGS_cxxshlib = v.LINKFLAGS_cshlib
  70         v.cxxstlib_PATTERN   = v.cstlib_PATTERN
  71
  72         v.LINK_CXX           = v.CXX + ['-fuse-ld=lld', '-nostdlib']
  73         v.CXXLNK_TGT_F       = v.CCLNK_TGT_F
  74
  75 @conf
  76 def clangxx_modifier_x86_64_windows_msvc(conf):
  77         conf.clang_modifier_msvc()
  78         conf.clangxx_modifier_msvc()
  79
  80         # Allow the user to override any flags if they so desire.
  81         clang_modifier_user_func = getattr(conf, 'clangxx_modifier_x86_64_windows_msvc_user', None)
  82         if clang_modifier_user_func:
  83                 clang_modifier_user_func()
  84
  85 @conf
  86 def clangxx_modifier_i386_windows_msvc(conf):
  87         conf.clang_modifier_msvc()
  88         conf.clangxx_modifier_msvc()
  89
  90         # Allow the user to override any flags if they so desire.
  91         clang_modifier_user_func = getattr(conf, 'clangxx_modifier_i386_windows_msvc_user', None)
  92         if clang_modifier_user_func:
  93                 clang_modifier_user_func()
  94
  95 def configure(conf):
  96         conf.find_clangxx()
  97         conf.find_program(['llvm-ar', 'ar'], var='AR')
  98         conf.find_ar()
  99         conf.gxx_common_flags()
 100         # Allow the user to provide flags for the target platform.
 101         conf.gxx_modifier_platform()
 102         # And allow more fine grained control based on the compiler's triplet.
 103         conf.clang_modifier_target_triple(cpp=True)
 104         conf.cxx_load_tools()
 105         conf.cxx_add_flags()
 106         conf.link_add_flags()