mirror of https://gitlab.com/ita1024/waf.git
143 lines
3.2 KiB
Python
143 lines
3.2 KiB
Python
#!/usr/bin/env python
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# encoding: utf-8
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# vim: sw=4 ts=4 noexpandtab
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"""
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LLVM Clang-CL support.
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Clang-CL is supposed to be a drop-in replacement for MSVC CL, but also serves
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well as a cross compiler for Windows from Linux (provided you have set up the
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environment). Requires Visual Studio 2015+ to be installed.
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On Windows it uses (most) MSVC tools.
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See waflib/Tools/msvc.py and waflib/Tools/msvc_common.py for more details.
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Usage:
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$ waf configure
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Or:
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$ LLVM_PATH=C:\Program Files\LLVM\bin waf configure
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Or:
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def configure(conf):
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conf.env.LLVM_PATH = 'C:\Program Files\LLVM\bin'
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conf.load('clang_cl')
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"""
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import sys, os
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from waflib import Utils, Errors, Logs
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from waflib.Configure import conf
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def options(opt):
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from waflib.Tools.msvc import options as msvc_opt
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msvc_opt(opt)
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@conf
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def find_clang_cl(conf):
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"""
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Find the program clang-cl.
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"""
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v = conf.env
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del(v.CC)
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del(v.CXX)
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llvm_path = str()
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if sys.platform == 'win32':
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try:
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llvm_key = Utils.winreg.OpenKey( \
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Utils.winreg.HKEY_LOCAL_MACHINE, \
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'SOFTWARE\\Wow6432Node\\LLVM\\LLVM')
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except OSError:
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llvm_key = Utils.winreg.OpenKey( \
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Utils.winreg.HKEY_LOCAL_MACHINE, \
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'SOFTWARE\\LLVM\\LLVM')
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llvm_path,type = Utils.winreg.QueryValueEx(llvm_key, '')
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llvm_path = os.path.join(llvm_path, 'bin')
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llvm_env_path = conf.environ.get('LLVM_PATH')
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if llvm_env_path:
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llvm_path = llvm_env_path
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elif 'LLVM_PATH' in v:
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llvm_path = v['LLVM_PATH']
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paths = v.PATH
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if llvm_path != 'bin' and llvm_path != str():
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paths = [llvm_path] + v.PATH
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cc = conf.find_program('clang-cl', var='CC', path_list=paths)
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v.CC = v.CXX = cc
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v.CC_NAME_SECONDARY = v.CXX_NAME_SECONDARY = 'clang'
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if sys.platform != 'win32':
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v.MSVC_COMPILER = 'msvc'
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v.MSVC_VERSION = 19
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if not v.LINK_CXX:
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conf.find_program( \
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'lld-link', \
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path_list=paths, \
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errmsg='lld-link was not found (linker)', \
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var='LINK_CXX')
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if not v.LINK_CC:
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v.LINK_CC = v.LINK_CXX
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@conf
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def find_llvm_tools(conf):
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"""
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Find the librarian, manifest tool, and resource compiler.
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"""
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v = conf.env
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v.CC_NAME = v.CXX_NAME = 'msvc'
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llvm_env_path = conf.environ.get('LLVM_PATH')
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llvm_path = None
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if llvm_env_path:
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llvm_path = llvm_env_path
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elif 'LLVM_PATH' in v:
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llvm_path = v['LLVM_PATH']
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paths = v.PATH
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if llvm_path:
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paths = [llvm_path] + v.PATH
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if not v.AR:
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stliblink = conf.find_program('llvm-lib', path_list=paths, var='AR')
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if not stliblink:
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conf.fatal('Unable to find required program "llvm-lib"')
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v.ARFLAGS = ['/nologo']
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# We assume clang_cl to only be used with relatively new MSVC installations.
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v.MSVC_MANIFEST = True
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conf.find_program('llvm-mt', path_list=paths, var='MT')
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v.MTFLAGS = ['/nologo']
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try:
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conf.load('winres')
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except Errors.ConfigurationError:
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Logs.warn('Resource compiler not found. Compiling resource file is disabled')
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def configure(conf):
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from waflib.Tools.msvc import autodetect, find_msvc, msvc_common_flags
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if sys.platform == 'win32':
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conf.autodetect(True)
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conf.find_msvc()
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else:
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conf.find_llvm_tools()
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conf.find_clang_cl()
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conf.msvc_common_flags()
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conf.cc_load_tools()
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conf.cxx_load_tools()
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conf.cc_add_flags()
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conf.cxx_add_flags()
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conf.link_add_flags()
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conf.visual_studio_add_flags()
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