Waf - 如何将库添加到wscript文件?

时间:2016-10-29 14:53:36

标签: c++ shared-libraries dynamic-linking wsh waf

我想将c ++库cpp-netlib添加到wscript中。 然后,如果我运行dpkg -l libcppnetlib0,我获得:

libcppnetlib0: 0.11.0-1     amd64        C++ Network Library

跑步:dpkg -L libcppnetlib0,我获得:

/.
/usr
/usr/lib
/usr/lib/x86_64-linux-gnu
/usr/lib/x86_64-linux-gnu/cppnetlib-uri.so.0.11.0
/usr/lib/x86_64-linux-gnu/cppnetlib-server-parsers.so.0.11.0
/usr/lib/x86_64-linux-gnu/cppnetlib-client-connections.so.0.11.0
/usr/share
/usr/share/lintian
/usr/share/lintian/overrides
/usr/share/lintian/overrides/libcppnetlib0
/usr/share/doc
/usr/share/doc/libcppnetlib0
/usr/share/doc/libcppnetlib0/copyright
/usr/share/doc/libcppnetlib0/changelog.Debian.gz
/usr/lib/x86_64-linux-gnu/libcppnetlib-server-parsers.so.0
/usr/lib/x86_64-linux-gnu/libcppnetlib-client-connections.so.0
/usr/lib/x86_64-linux-gnu/libcppnetlib-uri.so.0

因为我需要libcppnetlib-uri, libcppnetlib-server-parsers, libcppnetlib-client-connections,所以在wscript中添加以下字段:

conf.check_cxx(lib='cppnetlib-uri',uselib_store='CPPNETLIBU', define_name='HAVE_CPPNETLIBU',mandatory=True)
conf.check_cxx(lib='cppnetlib-server-parsers',uselib_store='CPPNETLIBS', define_name='HAVE_CPPNETLIBS',mandatory=True)
conf.check_cxx(lib='cppnetlib-client-connections',uselib_store='CPPNETLIBC', define_name='HAVE_CPPNETLIBC',mandatory=True)

然后我在这里添加了三个引用(CPPNETLIBU,CPPNETLIBC,CPPNETLIBS):

libndn_cxx = dict(
        target="ndn-cxx",
        name="ndn-cxx",
        source=bld.path.ant_glob('src/**/*.cpp',
                                 excl=['src/security/**/*-osx.cpp',
                                       'src/**/*-sqlite3.cpp']),
        headers='src/common-pch.hpp',
        use='version BOOST CRYPTOPP OPENSSL SQLITE3 RT PTHREAD CPPNETLIBC CPPNETLIBU CPPNETLIBS',
        includes=". src",
        export_includes="src",
        install_path='${LIBDIR}')

但是,当我启动./waf configure时,它失败了,它找不到我指定的库。

错误是:

[199/200] Linking build/examples/clientMat
examples/clientMat.cpp.2.o: In function `construct<boost::network::http::impl::normal_delegate, asio::io_service&>':
/usr/include/c++/4.9/ext/new_allocator.h:120: undefined reference to `boost::network::http::impl::normal_delegate::normal_delegate(asio::io_service&)'
/usr/lib/gcc/x86_64-linux-gnu/4.9/../../../x86_64-linux-gnu/libcppnetlib-client-connections.so: undefined reference to `boost::system::system_category()'
/usr/lib/gcc/x86_64-linux-gnu/4.9/../../../x86_64-linux-gnu/libcppnetlib-client-connections.so: undefined reference to `boost::system::generic_category()'
collect2: error: ld returned 1 exit status

我(也许?)在/ usr / local / lib / pkgconfig中没有任何引用时发现了问题。确实,运行:ls /usr/local/lib/pkgconfig,我有一些.pc文件,但没有关于cppnetlib的文件。我试着写自己没有成功。

如果问题出现在这里,实际上我需要有关如何正确编写.pc文件的帮助。

这个问题是一个很好的起点,但我没有成功:waf -how to add external library to wscript_build file

1 个答案:

答案 0 :(得分:1)

您可以按照https://waf.io/book/

中的说明使用 bld.read_shlib()

示例代码(main.c):

#include <stdio.h>
#include <math.h>

int main(int argc, char* argv[]) {
    printf("cos(0.123456)=%f\n", cos(0.123456));
    return 0;
}

使用数学库构建脚本:

#!/usr/bin/env python
# -*- encoding: utf-8 -*-

top = '.'
out = 'build'

VERSION = '0.0.0'
APPNAME = 'app'

def options(opt):
    opt.load('compiler_c')

def configure(conf):
    conf.load('compiler_c')
    conf.check_cc(lib='m', cflags='-Wall', uselib_store='M')
    conf.check(header_name='math.h', features='c cprogram')

def build(bld):
    bld.read_shlib('m')
    bld.program(target='app', source='main.c')