third_party/waf/waflib/Tools/gxx.py

   1 #! /usr/bin/env python
   2 # encoding: utf-8
   3 # WARNING! Do not edit! https://waf.io/book/index.html#_obtaining_the_waf_file
   4
   5 #!/usr/bin/env python
   6 # encoding: utf-8
   7 # Thomas Nagy, 2006-2016 (ita)
   8 # Ralf Habacker, 2006 (rh)
   9 # Yinon Ehrlich, 2009
  10
  11 """
  12 g++/llvm detection.
  13 """
  14
  15 from waflib.Tools import ccroot, ar
  16 from waflib.Configure import conf
  17
  18 @conf
  19 def find_gxx(conf):
  20         """
  21         Finds the program g++, and if present, try to detect its version number
  22         """
  23         cxx = conf.find_program(['g++', 'c++'], var='CXX')
  24         conf.get_cc_version(cxx, gcc=True)
  25         conf.env.CXX_NAME = 'gcc'
  26
  27 @conf
  28 def gxx_common_flags(conf):
  29         """
  30         Common flags for g++ on nearly all platforms
  31         """
  32         v = conf.env
  33
  34         v.CXX_SRC_F           = []
  35         v.CXX_TGT_F           = ['-c', '-o']
  36
  37         if not v.LINK_CXX:
  38                 v.LINK_CXX = v.CXX
  39
  40         v.CXXLNK_SRC_F        = []
  41         v.CXXLNK_TGT_F        = ['-o']
  42         v.CPPPATH_ST          = '-I%s'
  43         v.DEFINES_ST          = '-D%s'
  44
  45         v.LIB_ST              = '-l%s' # template for adding libs
  46         v.LIBPATH_ST          = '-L%s' # template for adding libpaths
  47         v.STLIB_ST            = '-l%s'
  48         v.STLIBPATH_ST        = '-L%s'
  49         v.RPATH_ST            = '-Wl,-rpath,%s'
  50
  51         v.SONAME_ST           = '-Wl,-h,%s'
  52         v.SHLIB_MARKER        = '-Wl,-Bdynamic'
  53         v.STLIB_MARKER        = '-Wl,-Bstatic'
  54
  55         v.cxxprogram_PATTERN  = '%s'
  56
  57         v.CXXFLAGS_cxxshlib   = ['-fPIC']
  58         v.LINKFLAGS_cxxshlib  = ['-shared']
  59         v.cxxshlib_PATTERN    = 'lib%s.so'
  60
  61         v.LINKFLAGS_cxxstlib  = ['-Wl,-Bstatic']
  62         v.cxxstlib_PATTERN    = 'lib%s.a'
  63
  64         v.LINKFLAGS_MACBUNDLE = ['-bundle', '-undefined', 'dynamic_lookup']
  65         v.CXXFLAGS_MACBUNDLE  = ['-fPIC']
  66         v.macbundle_PATTERN   = '%s.bundle'
  67
  68 @conf
  69 def gxx_modifier_win32(conf):
  70         """Configuration flags for executing gcc on Windows"""
  71         v = conf.env
  72         v.cxxprogram_PATTERN  = '%s.exe'
  73
  74         v.cxxshlib_PATTERN    = '%s.dll'
  75         v.implib_PATTERN      = 'lib%s.dll.a'
  76         v.IMPLIB_ST           = '-Wl,--out-implib,%s'
  77
  78         v.CXXFLAGS_cxxshlib   = []
  79
  80         # Auto-import is enabled by default even without this option,
  81         # but enabling it explicitly has the nice effect of suppressing the rather boring, debug-level messages
  82         # that the linker emits otherwise.
  83         v.append_value('LINKFLAGS', ['-Wl,--enable-auto-import'])
  84
  85 @conf
  86 def gxx_modifier_cygwin(conf):
  87         """Configuration flags for executing g++ on Cygwin"""
  88         gxx_modifier_win32(conf)
  89         v = conf.env
  90         v.cxxshlib_PATTERN    = 'cyg%s.dll'
  91         v.append_value('LINKFLAGS_cxxshlib', ['-Wl,--enable-auto-image-base'])
  92         v.CXXFLAGS_cxxshlib   = []
  93
  94 @conf
  95 def gxx_modifier_darwin(conf):
  96         """Configuration flags for executing g++ on MacOS"""
  97         v = conf.env
  98         v.CXXFLAGS_cxxshlib   = ['-fPIC']
  99         v.LINKFLAGS_cxxshlib  = ['-dynamiclib']
 100         v.cxxshlib_PATTERN    = 'lib%s.dylib'
 101         v.FRAMEWORKPATH_ST    = '-F%s'
 102         v.FRAMEWORK_ST        = ['-framework']
 103         v.ARCH_ST             = ['-arch']
 104
 105         v.LINKFLAGS_cxxstlib  = []
 106
 107         v.SHLIB_MARKER        = []
 108         v.STLIB_MARKER        = []
 109         v.SONAME_ST           = []
 110
 111 @conf
 112 def gxx_modifier_aix(conf):
 113         """Configuration flags for executing g++ on AIX"""
 114         v = conf.env
 115         v.LINKFLAGS_cxxprogram= ['-Wl,-brtl']
 116
 117         v.LINKFLAGS_cxxshlib  = ['-shared', '-Wl,-brtl,-bexpfull']
 118         v.SHLIB_MARKER        = []
 119
 120 @conf
 121 def gxx_modifier_hpux(conf):
 122         v = conf.env
 123         v.SHLIB_MARKER        = []
 124         v.STLIB_MARKER        = []
 125         v.CFLAGS_cxxshlib     = ['-fPIC','-DPIC']
 126         v.cxxshlib_PATTERN    = 'lib%s.sl'
 127
 128 @conf
 129 def gxx_modifier_openbsd(conf):
 130         conf.env.SONAME_ST = []
 131
 132 @conf
 133 def gcc_modifier_osf1V(conf):
 134         v = conf.env
 135         v.SHLIB_MARKER        = []
 136         v.STLIB_MARKER        = []
 137         v.SONAME_ST           = []
 138
 139 @conf
 140 def gxx_modifier_platform(conf):
 141         """Execute platform-specific functions based on *gxx_modifier_+NAME*"""
 142         # * set configurations specific for a platform.
 143         # * the destination platform is detected automatically by looking at the macros the compiler predefines,
 144         #   and if it's not recognised, it fallbacks to sys.platform.
 145         gxx_modifier_func = getattr(conf, 'gxx_modifier_' + conf.env.DEST_OS, None)
 146         if gxx_modifier_func:
 147                 gxx_modifier_func()
 148
 149 def configure(conf):
 150         """
 151         Configuration for g++
 152         """
 153         conf.find_gxx()
 154         conf.find_ar()
 155         conf.gxx_common_flags()
 156         conf.gxx_modifier_platform()
 157         conf.cxx_load_tools()
 158         conf.cxx_add_flags()
 159         conf.link_add_flags()