Import of the watch repository from Pebble

third_party/waf/waf-light/waflib/Tools/gxx.py

@@ -0,0 +1,152 @@
+#!/usr/bin/env python
+# encoding: utf-8
+# Thomas Nagy, 2006-2010 (ita)
+# Ralf Habacker, 2006 (rh)
+# Yinon Ehrlich, 2009
+
+"""
+g++/llvm detection.
+"""
+
+import os, sys
+from waflib import Configure, Options, Utils
+from waflib.Tools import ccroot, ar
+from waflib.Configure import conf
+
+@conf
+def find_gxx(conf):
+	"""
+	Find the program g++, and if present, try to detect its version number
+	"""
+	cxx = conf.find_program(['g++', 'c++'], var='CXX')
+	cxx = conf.cmd_to_list(cxx)
+	conf.get_cc_version(cxx, gcc=True)
+	conf.env.CXX_NAME = 'gcc'
+	conf.env.CXX      = cxx
+
+@conf
+def gxx_common_flags(conf):
+	"""
+	Common flags for g++ on nearly all platforms
+	"""
+	v = conf.env
+
+	v['CXX_SRC_F']           = []
+	v['CXX_TGT_F']           = ['-c', '-o']
+
+	# linker
+	if not v['LINK_CXX']: v['LINK_CXX'] = v['CXX']
+	v['CXXLNK_SRC_F']        = []
+	v['CXXLNK_TGT_F']        = ['-o']
+	v['CPPPATH_ST']          = '-I%s'
+	v['DEFINES_ST']          = '-D%s'
+
+	v['LIB_ST']              = '-l%s' # template for adding libs
+	v['LIBPATH_ST']          = '-L%s' # template for adding libpaths
+	v['STLIB_ST']            = '-l%s'
+	v['STLIBPATH_ST']        = '-L%s'
+	v['RPATH_ST']            = '-Wl,-rpath,%s'
+
+	v['SONAME_ST']           = '-Wl,-h,%s'
+	v['SHLIB_MARKER']        = '-Wl,-Bdynamic'
+	v['STLIB_MARKER']        = '-Wl,-Bstatic'
+
+	# program
+	v['cxxprogram_PATTERN']  = '%s'
+
+	# shared library
+	v['CXXFLAGS_cxxshlib']   = ['-fPIC']
+	v['LINKFLAGS_cxxshlib']  = ['-shared']
+	v['cxxshlib_PATTERN']    = 'lib%s.so'
+
+	# static lib
+	v['LINKFLAGS_cxxstlib']  = ['-Wl,-Bstatic']
+	v['cxxstlib_PATTERN']    = 'lib%s.a'
+
+	# osx stuff
+	v['LINKFLAGS_MACBUNDLE'] = ['-bundle', '-undefined', 'dynamic_lookup']
+	v['CXXFLAGS_MACBUNDLE']  = ['-fPIC']
+	v['macbundle_PATTERN']   = '%s.bundle'
+
+@conf
+def gxx_modifier_win32(conf):
+	"""Configuration flags for executing gcc on Windows"""
+	v = conf.env
+	v['cxxprogram_PATTERN']  = '%s.exe'
+
+	v['cxxshlib_PATTERN']    = '%s.dll'
+	v['implib_PATTERN']      = 'lib%s.dll.a'
+	v['IMPLIB_ST']           = '-Wl,--out-implib,%s'
+
+	v['CXXFLAGS_cxxshlib']   = []
+
+	# Auto-import is enabled by default even without this option,
+	# but enabling it explicitly has the nice effect of suppressing the rather boring, debug-level messages
+	# that the linker emits otherwise.
+	v.append_value('LINKFLAGS', ['-Wl,--enable-auto-import'])
+
+@conf
+def gxx_modifier_cygwin(conf):
+	"""Configuration flags for executing g++ on Cygwin"""
+	gxx_modifier_win32(conf)
+	v = conf.env
+	v['cxxshlib_PATTERN']    = 'cyg%s.dll'
+	v.append_value('LINKFLAGS_cxxshlib', ['-Wl,--enable-auto-image-base'])
+	v['CXXFLAGS_cxxshlib']   = []
+
+@conf
+def gxx_modifier_darwin(conf):
+	"""Configuration flags for executing g++ on MacOS"""
+	v = conf.env
+	v['CXXFLAGS_cxxshlib']   = ['-fPIC']
+	v['LINKFLAGS_cxxshlib']  = ['-dynamiclib', '-Wl,-compatibility_version,1', '-Wl,-current_version,1']
+	v['cxxshlib_PATTERN']    = 'lib%s.dylib'
+	v['FRAMEWORKPATH_ST']    = '-F%s'
+	v['FRAMEWORK_ST']        = ['-framework']
+	v['ARCH_ST']             = ['-arch']
+
+	v['LINKFLAGS_cxxstlib']  = []
+
+	v['SHLIB_MARKER']        = []
+	v['STLIB_MARKER']        = []
+	v['SONAME_ST']           = []
+
+@conf
+def gxx_modifier_aix(conf):
+	"""Configuration flags for executing g++ on AIX"""
+	v = conf.env
+	v['LINKFLAGS_cxxprogram']= ['-Wl,-brtl']
+
+	v['LINKFLAGS_cxxshlib']  = ['-shared', '-Wl,-brtl,-bexpfull']
+	v['SHLIB_MARKER']        = []
+
+@conf
+def gxx_modifier_hpux(conf):
+	v = conf.env
+	v['SHLIB_MARKER']        = []
+	v['STLIB_MARKER']        = '-Bstatic'
+	v['CFLAGS_cxxshlib']     = ['-fPIC','-DPIC']
+	v['cxxshlib_PATTERN']    = 'lib%s.sl'
+
+@conf
+def gxx_modifier_platform(conf):
+	"""Execute platform-specific functions based on *gxx_modifier_+NAME*"""
+	# * set configurations specific for a platform.
+	# * the destination platform is detected automatically by looking at the macros the compiler predefines,
+	#   and if it's not recognised, it fallbacks to sys.platform.
+	gxx_modifier_func = getattr(conf, 'gxx_modifier_' + conf.env.DEST_OS, None)
+	if gxx_modifier_func:
+		gxx_modifier_func()
+
+def configure(conf):
+	"""
+	Configuration for g++
+	"""
+	conf.find_gxx()
+	conf.find_ar()
+	conf.gxx_common_flags()
+	conf.gxx_modifier_platform()
+	conf.cxx_load_tools()
+	conf.cxx_add_flags()
+	conf.link_add_flags()
+