waflib/Tools/gxx.py

   1 #!/usr/bin/env python
   2 # encoding: utf-8
   3 # Thomas Nagy, 2006-2018 (ita)
   4 # Ralf Habacker, 2006 (rh)
   5 # Yinon Ehrlich, 2009
   6
   7 """
   8 g++/llvm detection.
   9 """
  10
  11 from waflib.Tools import ccroot, ar
  12 from waflib.Configure import conf
  13
  14 @conf
  15 def find_gxx(conf):
  16         """
  17         Finds the program g++, and if present, try to detect its version number
  18         """
  19         cxx = conf.find_program(['g++', 'c++'], var='CXX')
  20         conf.get_cc_version(cxx, gcc=True)
  21         conf.env.CXX_NAME = 'gcc'
  22
  23 @conf
  24 def gxx_common_flags(conf):
  25         """
  26         Common flags for g++ on nearly all platforms
  27         """
  28         v = conf.env
  29
  30         v.CXX_SRC_F           = []
  31         v.CXX_TGT_F           = ['-c', '-o']
  32
  33         if not v.LINK_CXX:
  34                 v.LINK_CXX = v.CXX
  35
  36         v.CXXLNK_SRC_F        = []
  37         v.CXXLNK_TGT_F        = ['-o']
  38         v.CPPPATH_ST          = '-I%s'
  39         v.DEFINES_ST          = '-D%s'
  40
  41         v.LIB_ST              = '-l%s' # template for adding libs
  42         v.LIBPATH_ST          = '-L%s' # template for adding libpaths
  43         v.STLIB_ST            = '-l%s'
  44         v.STLIBPATH_ST        = '-L%s'
  45         v.RPATH_ST            = '-Wl,-rpath,%s'
  46
  47         v.SONAME_ST           = '-Wl,-h,%s'
  48         v.SHLIB_MARKER        = '-Wl,-Bdynamic'
  49         v.STLIB_MARKER        = '-Wl,-Bstatic'
  50
  51         v.cxxprogram_PATTERN  = '%s'
  52
  53         v.CXXFLAGS_cxxshlib   = ['-fPIC']
  54         v.LINKFLAGS_cxxshlib  = ['-shared']
  55         v.cxxshlib_PATTERN    = 'lib%s.so'
  56
  57         v.LINKFLAGS_cxxstlib  = ['-Wl,-Bstatic']
  58         v.cxxstlib_PATTERN    = 'lib%s.a'
  59
  60         v.LINKFLAGS_MACBUNDLE = ['-bundle', '-undefined', 'dynamic_lookup']
  61         v.CXXFLAGS_MACBUNDLE  = ['-fPIC']
  62         v.macbundle_PATTERN   = '%s.bundle'
  63
  64 @conf
  65 def gxx_modifier_win32(conf):
  66         """Configuration flags for executing gcc on Windows"""
  67         v = conf.env
  68         v.cxxprogram_PATTERN  = '%s.exe'
  69
  70         v.cxxshlib_PATTERN    = '%s.dll'
  71         v.implib_PATTERN      = '%s.dll.a'
  72         v.IMPLIB_ST           = '-Wl,--out-implib,%s'
  73
  74         v.CXXFLAGS_cxxshlib   = []
  75
  76         # Auto-import is enabled by default even without this option,
  77         # but enabling it explicitly has the nice effect of suppressing the rather boring, debug-level messages
  78         # that the linker emits otherwise.
  79         v.append_value('LINKFLAGS', ['-Wl,--enable-auto-import'])
  80
  81 @conf
  82 def gxx_modifier_cygwin(conf):
  83         """Configuration flags for executing g++ on Cygwin"""
  84         gxx_modifier_win32(conf)
  85         v = conf.env
  86         v.cxxshlib_PATTERN    = 'cyg%s.dll'
  87         v.append_value('LINKFLAGS_cxxshlib', ['-Wl,--enable-auto-image-base'])
  88         v.CXXFLAGS_cxxshlib   = []
  89
  90 @conf
  91 def gxx_modifier_darwin(conf):
  92         """Configuration flags for executing g++ on MacOS"""
  93         v = conf.env
  94         v.CXXFLAGS_cxxshlib   = ['-fPIC']
  95         v.LINKFLAGS_cxxshlib  = ['-dynamiclib']
  96         v.cxxshlib_PATTERN    = 'lib%s.dylib'
  97         v.FRAMEWORKPATH_ST    = '-F%s'
  98         v.FRAMEWORK_ST        = ['-framework']
  99         v.ARCH_ST             = ['-arch']
 100
 101         v.LINKFLAGS_cxxstlib  = []
 102
 103         v.SHLIB_MARKER        = []
 104         v.STLIB_MARKER        = []
 105         v.SONAME_ST           = []
 106
 107 @conf
 108 def gxx_modifier_aix(conf):
 109         """Configuration flags for executing g++ on AIX"""
 110         v = conf.env
 111         v.LINKFLAGS_cxxprogram= ['-Wl,-brtl']
 112
 113         v.LINKFLAGS_cxxshlib  = ['-shared', '-Wl,-brtl,-bexpfull']
 114         v.SHLIB_MARKER        = []
 115
 116 @conf
 117 def gxx_modifier_hpux(conf):
 118         v = conf.env
 119         v.SHLIB_MARKER        = []
 120         v.STLIB_MARKER        = []
 121         v.CFLAGS_cxxshlib     = ['-fPIC','-DPIC']
 122         v.cxxshlib_PATTERN    = 'lib%s.sl'
 123
 124 @conf
 125 def gxx_modifier_openbsd(conf):
 126         conf.env.SONAME_ST = []
 127
 128 @conf
 129 def gcc_modifier_osf1V(conf):
 130         v = conf.env
 131         v.SHLIB_MARKER        = []
 132         v.STLIB_MARKER        = []
 133         v.SONAME_ST           = []
 134
 135 @conf
 136 def gxx_modifier_platform(conf):
 137         """Execute platform-specific functions based on *gxx_modifier_+NAME*"""
 138         # * set configurations specific for a platform.
 139         # * the destination platform is detected automatically by looking at the macros the compiler predefines,
 140         #   and if it's not recognised, it fallbacks to sys.platform.
 141         gxx_modifier_func = getattr(conf, 'gxx_modifier_' + conf.env.DEST_OS, None)
 142         if gxx_modifier_func:
 143                 gxx_modifier_func()
 144
 145 def configure(conf):
 146         """
 147         Configuration for g++
 148         """
 149         conf.find_gxx()
 150         conf.find_ar()
 151         conf.gxx_common_flags()
 152         conf.gxx_modifier_platform()
 153         conf.cxx_load_tools()
 154         conf.cxx_add_flags()
 155         conf.link_add_flags()
 156         conf.check_gcc_o_space('cxx')
 157