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
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')