我试图在 linux 机器上安装 Boost(CentOs,Linux 版本 2.6.9-67.ELsmp)。我按照 Boost Getting Started网页上的说明进行操作。下载并提取文件,然后我添加前缀,因为我不是 root 用户。
./bootstrap.sh --prefix=/my_path/boost-1.49.0
./b2 install
我去 /my_path/boost-1.49.0 并检查那里有 /include/boost/ 和 /lib/ 包含文件。
我还将 LD_LIBRARY_PATH 设置为 /my_path/boost-1.49.0/lib/。
为了测试我是否安装成功,我编译了以下代码:
主文件
#include <boost/regex.hpp>
#include <iostream>
#include <string>
using namespace boost;
using namespace std;
int main(int argc, char *argv[])
{
string line = "12345";
regex pattern("^123");
if (regex_match(line, pattern)) cout << "match." << endl;
else cout << "not match." << endl;
return 1;
}
并通过命令编译:
g++ -v -I /my_path/boost-1.49.0/include/boost -L /my_path/boost-1.49.0/lib main.cpp -lboost_regex -o example
并产生以下错误:
Reading specs from /usr/lib/gcc/x86_64-redhat-linux/3.4.6/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --disable-checking --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-java-awt=gtk --host=x86_64-redhat-linux
Thread model: posix
gcc version 3.4.6 20060404 (Red Hat 3.4.6-9)
/usr/libexec/gcc/x86_64-redhat-linux/3.4.6/cc1plus -quiet -v -I /my_path/boost-1.49.0/include/boost/ -D_GNU_SOURCE main.cpp -quiet -dumpbase main.cpp -mtune=k8 -auxbase main -version -o /tmp/ccW0ON8y.s
ignoring nonexistent directory "/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../x86_64-redhat-linux/include"
#include "..." search starts here:
#include <...> search starts here:
/my_path/boost-1.49.0/include/boost/
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6/x86_64-redhat-linux
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6/backward
/usr/local/include
/usr/lib/gcc/x86_64-redhat-linux/3.4.6/include
/usr/include
End of search list.
GNU C++ version 3.4.6 20060404 (Red Hat 3.4.6-9) (x86_64-redhat-linux)
compiled by GNU C version 3.4.6 20060404 (Red Hat 3.4.6-9).
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
as -V -Qy -o /tmp/ccpu82sB.o /tmp/ccW0ON8y.s
GNU assembler version 2.15.92.0.2 (x86_64-redhat-linux) using BFD version 2.15.92.0.2 20040927
/usr/libexec/gcc/x86_64-redhat-linux/3.4.6/collect2 --eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 -o example /usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../lib64/crt1.o /usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../lib64/crti.o /usr/lib/gcc/x86_64-redhat-linux/3.4.6/crtbegin.o -L /my_path/boost-1.49.0/lib/ -L/usr/lib/gcc/x86_64-redhat-linux/3.4.6 -L/usr/lib/gcc/x86_64-redhat-linux/3.4.6 -L/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../lib64 -L/usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../.. -L/lib/../lib64 -L/usr/lib/../lib64 /tmp/ccpu82sB.o -lboost_regex -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc /usr/lib/gcc/x86_64-redhat-linux/3.4.6/crtend.o /usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../lib64/crtn.o
/tmp/ccpu82sB.o(.gnu.linkonce.t._ZN5boost11basic_regexIcNS_12regex_
traitsIcEESaIcEEC1EPKcjRKS3_+0x27): In function `boost::basic_regex<char,
boost::regex_traits<char>, std::allocator<char> >::basic_regex(char const*,
unsigned int, std::allocator<char> const&)'::
undefined reference to `boost::reg_expression<char, boost::regex_traits<char>,
std::allocator<char> >::reg_expression(char const*, unsigned int,
std::allocator<char> const&)'
/tmp/ccpu82sB.o(.gnu.linkonce.t.
_ZN5boost11basic_regexIcNS_12regex_traitsIcEESaIcEED1Ev+0x11): In function
`boost::basic_regex<char, boost::regex_traits<char>,
std::allocator<char>>::~basic_regex()':
: undefined reference to `boost::reg_expression<char, boost::regex_traits<char>,
std::allocator<char> >::~reg_expression()'
/tmp/ccpu82sB.o(.gnu.linkonce.t.
_ZN5boost9re_detail12perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcSsEESaINS_9sub
_matchIS6_EEENS_12regex_traitsIcEESaIcEEC1ES6_S6_RNS_13match_resultsIS6_S9_EERKNS_
14reg_expressionIcSB_SC_EENS_15regex_constants12_match_flagsE+0xa1): In function
`boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<char const*,
std::basic_string<char, std::char_traits<char>, std::allocator<char> > >,
std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*,
std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >,
boost::regex_traits<char>, std::allocator<char>>
::perl_matcher(__gnu_cxx::__normal_iterator<char const*, std::basic_string<char,
std::char_traits<char>, std::allocator<char> > >, __gnu_cxx::__normal_iterator<char
const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >,
boost::match_results<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char,
std::char_traits<char>, std::allocator<char> > >,
std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*,
std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > >&,
boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> > const&,
boost::regex_constants::_match_flags)':
但是,如果我只是使用系统管理员安装的默认 boost 进行编译
g++ -v main.cpp -lboost_regex -o example
然后就好了。
我得到的 ldd 例子
libboost_regex.so.1 => /usr/lib64/libboost_regex.so.1 (0x0000002a95557000)
由于某种原因,我被要求不要更新 /usr/include/boost 中的 boost。有什么可以帮助我解决这个问题的方法,即在本地文件夹中安装 boost 并更改路径如何包含和链接以使用不同的版本?
我不确定这个问题是否愚蠢,但我确实用谷歌搜索过,但大多数相关问题都没有在 gcc 命令中正确设置 -I、-L 和 -l。我不知道上面的错误信息,真的让我发疯。任何帮助表示赞赏。
感谢您的耐心和时间。