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[waf] Make --llvm-config set RPATH and detect clang resource dir with $(llvm-config --bindir)/clang (#196)

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Fangrui Song 2017-12-27 14:52:32 -08:00 committed by GitHub
parent 9dde5041cb
commit 3c6cf1017c
1 changed files with 19 additions and 4 deletions
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17
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@ -145,6 +145,7 @@ def configure(ctx):
ctx.load('clang_compilation_database', tooldir='.')
ctx.env['use_system_clang'] = ctx.options.use_system_clang
ctx.env['llvm_config'] = ctx.options.llvm_config
ctx.env['bundled_clang'] = ctx.options.bundled_clang
def libname(lib):
# Newer MinGW and MSVC both wants full file name
@ -237,13 +238,27 @@ def build(bld):
lib.append('pthread')
if bld.env['use_system_clang']:
if bld.env['llvm_config']:
# If --llvm-config is specified, set RPATH and use $bindir/bin/clang -###
# to detect recource directory.
output = str(subprocess.check_output(
[bld.env['llvm_config'], '--bindir'],
stderr=subprocess.STDOUT).decode()).strip()
clang = os.path.join(output, 'clang')
rpath = str(subprocess.check_output(
[bld.env['llvm_config'], '--libdir'],
stderr=subprocess.STDOUT).decode()).strip()
else:
clang = 'clang'
if sys.platform == 'darwin':
rpath = bld.env['LIBPATH_clang'][0]
else:
rpath = []
devnull = '/dev/null' if sys.platform != 'win32' else 'NUL'
output = subprocess.check_output(['clang', '-###', '-xc', devnull], stderr=subprocess.STDOUT).decode()
output = subprocess.check_output(
[clang, '-###', '-xc', devnull],
stderr=subprocess.STDOUT).decode()
match = re.search(r'"-resource-dir" "([^"]*)"', output, re.M | re.I)
if match:
default_resource_directory = match.group(1)