32a81d1e16
When clang is enabled, also pass through --enable-libcpp to LLVM's configure command line to help it pick up the most recent c++ runtime library. This also changes the mklldeps.py script to pick up on whether LLVM was linked against stdc++ or c++ based on the --cxxflags that llvm-config prints. In an ongoing attempt to update LLVM, the bots need to update their C compilers to something that supports c++11 (LLVM recently switched). The OSX bots are running Lion (10.7), which only supports up to gcc 4.2 and clang 3.2. Apparently the libstdc++ is too old (even on the most updated command line tools) for LLVM, but using libc++ instead appears to work just fine.
105 lines
3.3 KiB
Python
105 lines
3.3 KiB
Python
# Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
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# file at the top-level directory of this distribution and at
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# http://rust-lang.org/COPYRIGHT.
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#
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# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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# option. This file may not be copied, modified, or distributed
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# except according to those terms.
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import os
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import sys
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import subprocess
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f = open(sys.argv[1], 'wb')
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components = sys.argv[2].split(' ')
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components = [i for i in components if i] # ignore extra whitespaces
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f.write("""// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// WARNING: THIS IS A GENERATED FILE, DO NOT MODIFY
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// take a look at src/etc/mklldeps.py if you're interested
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""")
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for llconfig in sys.argv[3:]:
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f.write("\n")
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proc = subprocess.Popen([llconfig, '--host-target'], stdout = subprocess.PIPE)
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out, err = proc.communicate()
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arch, os = out.split('-', 1)
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arch = 'x86' if arch == 'i686' or arch == 'i386' else arch
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if 'darwin' in os:
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os = 'macos'
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elif 'linux' in os:
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os = 'linux'
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elif 'freebsd' in os:
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os = 'freebsd'
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elif 'android' in os:
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os = 'android'
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elif 'win' in os or 'mingw' in os:
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os = 'win32'
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cfg = [
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"target_arch = \"" + arch + "\"",
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"target_os = \"" + os + "\"",
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]
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f.write("#[cfg(" + ', '.join(cfg) + ")]\n")
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# LLVM libs
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args = [llconfig, '--libs', '--system-libs']
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args.extend(components)
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proc = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = proc.communicate()
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if err:
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print("failed to run llconfig: args = `{}`".format(args))
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sys.exit(1)
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for lib in out.strip().replace("\n", ' ').split(' '):
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lib = lib.strip()[2:] # chop of the leading '-l'
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f.write("#[link(name = \"" + lib + "\"")
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# LLVM libraries are all static libraries
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if 'LLVM' in lib:
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f.write(", kind = \"static\"")
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f.write(")]\n")
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# LLVM ldflags
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args = [llconfig, '--ldflags']
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proc = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = proc.communicate()
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if err:
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print("failed to run llconfig: args = `{}`".format(args))
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sys.exit(1)
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for lib in out.strip().split(' '):
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if lib[:2] == "-l":
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f.write("#[link(name = \"" + lib[2:] + "\")]\n")
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# C++ runtime library
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args = [llconfig, '--cxxflags']
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proc = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = proc.communicate()
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if err:
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print("failed to run llconfig: args = `{}`".format(args))
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sys.exit(1)
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if 'stdlib=libc++' in out:
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f.write("#[link(name = \"c++\")]\n")
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else:
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f.write("#[link(name = \"stdc++\")]\n")
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# Attach everything to an extern block
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f.write("extern {}\n")
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