From fa87543e7d6bb243ff068c64069fc43342041073 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Mon, 14 Oct 2019 11:01:21 +0200
Subject: Upgrade to waf 2.0.18

---
 extras/clang_cross.py | 92 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 extras/clang_cross.py

(limited to 'extras/clang_cross.py')

diff --git a/extras/clang_cross.py b/extras/clang_cross.py
new file mode 100644
index 0000000..1b51e28
--- /dev/null
+++ b/extras/clang_cross.py
@@ -0,0 +1,92 @@
+#!/usr/bin/env python
+# encoding: utf-8
+# Krzysztof Kosiński 2014
+# DragoonX6 2018
+
+"""
+Detect the Clang C compiler
+This version is an attempt at supporting the -target and -sysroot flag of Clang.
+"""
+
+from waflib.Tools import ccroot, ar, gcc
+from waflib.Configure import conf
+import waflib.Context
+import waflib.extras.clang_cross_common
+
+def options(opt):
+	"""
+	Target triplet for clang::
+			$ waf configure --clang-target-triple=x86_64-pc-linux-gnu
+	"""
+	cc_compiler_opts = opt.add_option_group('Configuration options')
+	cc_compiler_opts.add_option('--clang-target-triple', default=None,
+		help='Target triple for clang',
+		dest='clang_target_triple')
+	cc_compiler_opts.add_option('--clang-sysroot', default=None,
+		help='Sysroot for clang',
+		dest='clang_sysroot')
+
+@conf
+def find_clang(conf):
+	"""
+	Finds the program clang and executes it to ensure it really is clang
+	"""
+
+	import os
+
+	cc = conf.find_program('clang', var='CC')
+
+	if conf.options.clang_target_triple != None:
+		conf.env.append_value('CC', ['-target', conf.options.clang_target_triple])
+
+	if conf.options.clang_sysroot != None:
+		sysroot = str()
+
+		if os.path.isabs(conf.options.clang_sysroot):
+			sysroot = conf.options.clang_sysroot
+		else:
+			sysroot = os.path.normpath(os.path.join(os.getcwd(), conf.options.clang_sysroot))
+
+		conf.env.append_value('CC', ['--sysroot', sysroot])
+
+	conf.get_cc_version(cc, clang=True)
+	conf.env.CC_NAME = 'clang'
+
+@conf
+def clang_modifier_x86_64_w64_mingw32(conf):
+	conf.gcc_modifier_win32()
+
+@conf
+def clang_modifier_i386_w64_mingw32(conf):
+	conf.gcc_modifier_win32()
+
+@conf
+def clang_modifier_x86_64_windows_msvc(conf):
+	conf.clang_modifier_msvc()
+
+	# Allow the user to override any flags if they so desire.
+	clang_modifier_user_func = getattr(conf, 'clang_modifier_x86_64_windows_msvc_user', None)
+	if clang_modifier_user_func:
+		clang_modifier_user_func()
+
+@conf
+def clang_modifier_i386_windows_msvc(conf):
+	conf.clang_modifier_msvc()
+
+	# Allow the user to override any flags if they so desire.
+	clang_modifier_user_func = getattr(conf, 'clang_modifier_i386_windows_msvc_user', None)
+	if clang_modifier_user_func:
+		clang_modifier_user_func()
+
+def configure(conf):
+	conf.find_clang()
+	conf.find_program(['llvm-ar', 'ar'], var='AR')
+	conf.find_ar()
+	conf.gcc_common_flags()
+	# Allow the user to provide flags for the target platform.
+	conf.gcc_modifier_platform()
+	# And allow more fine grained control based on the compiler's triplet.
+	conf.clang_modifier_target_triple()
+	conf.cc_load_tools()
+	conf.cc_add_flags()
+	conf.link_add_flags()
-- 
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