From eede9648d50c3750f6f8d1319a79dd76d7f10b55 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Sat, 15 Sep 2018 14:51:02 +0200
Subject: Squashed 'waflib/' content from commit 982416b8

git-subtree-dir: waflib
git-subtree-split: 982416b8a6c6728e200243e1be3ab60435c08830
---
 Tools/gxx.py | 157 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 157 insertions(+)
 create mode 100644 Tools/gxx.py

(limited to 'Tools/gxx.py')

diff --git a/Tools/gxx.py b/Tools/gxx.py
new file mode 100644
index 00000000..22c5d26f
--- /dev/null
+++ b/Tools/gxx.py
@@ -0,0 +1,157 @@
+#!/usr/bin/env python
+# encoding: utf-8
+# Thomas Nagy, 2006-2018 (ita)
+# Ralf Habacker, 2006 (rh)
+# Yinon Ehrlich, 2009
+
+"""
+g++/llvm detection.
+"""
+
+from waflib.Tools import ccroot, ar
+from waflib.Configure import conf
+
+@conf
+def find_gxx(conf):
+	"""
+	Finds the program g++, and if present, try to detect its version number
+	"""
+	cxx = conf.find_program(['g++', 'c++'], var='CXX')
+	conf.get_cc_version(cxx, gcc=True)
+	conf.env.CXX_NAME = 'gcc'
+
+@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']
+
+	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'
+
+	v.cxxprogram_PATTERN  = '%s'
+
+	v.CXXFLAGS_cxxshlib   = ['-fPIC']
+	v.LINKFLAGS_cxxshlib  = ['-shared']
+	v.cxxshlib_PATTERN    = 'lib%s.so'
+
+	v.LINKFLAGS_cxxstlib  = ['-Wl,-Bstatic']
+	v.cxxstlib_PATTERN    = 'lib%s.a'
+
+	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      = '%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']
+	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        = []
+	v.CFLAGS_cxxshlib     = ['-fPIC','-DPIC']
+	v.cxxshlib_PATTERN    = 'lib%s.sl'
+
+@conf
+def gxx_modifier_openbsd(conf):
+	conf.env.SONAME_ST = []
+
+@conf
+def gcc_modifier_osf1V(conf):
+	v = conf.env
+	v.SHLIB_MARKER        = []
+	v.STLIB_MARKER        = []
+	v.SONAME_ST           = []
+
+@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()
+	conf.check_gcc_o_space('cxx')
+
-- 
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