我从github下载了libconfig的版本，并尝试编译它。我在解压缩包的目录中运行以下命令：
mkdir build
cd build
cmake ..
make
然后终端输出
/usr/include/c++/5/cstdlib:118:11: error: ‘::div_t’ has not been declared
using ::div_t;
^
/usr/include/c++/5/cstdlib:119:11: error: ‘::ldiv_t’ has not been declared
using ::ldiv_t;
^
/usr/include/c++/5/cstdlib:121:11: error: ‘::abort’ has not been declared
using ::abort;
^
/usr/include/c++/5/cstdlib:122:11: error: ‘::abs’ has not been declared
using ::abs;
^
/usr/include/c++/5/cstdlib:123:11: error: ‘::atexit’ has not been declared
using ::atexit;
^
/usr/include/c++/5/cstdlib:129:11: error: ‘::atof’ has not been declared
using ::atof;
^
/usr/include/c++/5/cstdlib:130:11: error: ‘::atoi’ has not been declared
using ::atoi;
^
/usr/include/c++/5/cstdlib:131:11: error: ‘::atol’ has not been declared
using ::atol;
^
/usr/include/c++/5/cstdlib:132:11: error: ‘::bsearch’ has not been declared
using ::bsearch;
^
/usr/include/c++/5/cstdlib:133:11: error: ‘::calloc’ has not been declared
using ::calloc;
^
/usr/include/c++/5/cstdlib:134:11: error: ‘::div’ has not been declared
using ::div;
^
/usr/include/c++/5/cstdlib:135:11: error: ‘::exit’ has not been declared
using ::exit;
^
/usr/include/c++/5/cstdlib:136:11: error: ‘::free’ has not been declared
using ::free;
^
/usr/include/c++/5/cstdlib:137:11: error: ‘::getenv’ has not been declared
using ::getenv;
^
/usr/include/c++/5/cstdlib:138:11: error: ‘::labs’ has not been declared
using ::labs;
^
/usr/include/c++/5/cstdlib:139:11: error: ‘::ldiv’ has not been declared
using ::ldiv;
^
/usr/include/c++/5/cstdlib:140:11: error: ‘::malloc’ has not been declared
using ::malloc;
^
/usr/include/c++/5/cstdlib:142:11: error: ‘::mblen’ has not been declared
using ::mblen;
^
/usr/include/c++/5/cstdlib:143:11: error: ‘::mbstowcs’ has not been declared
using ::mbstowcs;
^
/usr/include/c++/5/cstdlib:144:11: error: ‘::mbtowc’ has not been declared
using ::mbtowc;
^
/usr/include/c++/5/cstdlib:146:11: error: ‘::qsort’ has not been declared
using ::qsort;
^
/usr/include/c++/5/cstdlib:152:11: error: ‘::rand’ has not been declared
using ::rand;
^
/usr/include/c++/5/cstdlib:153:11: error: ‘::realloc’ has not been declared
using ::realloc;
^
/usr/include/c++/5/cstdlib:154:11: error: ‘::srand’ has not been declared
using ::srand;
^
/usr/include/c++/5/cstdlib:155:11: error: ‘::strtod’ has not been declared
using ::strtod;
^
/usr/include/c++/5/cstdlib:156:11: error: ‘::strtol’ has not been declared
using ::strtol;
^
/usr/include/c++/5/cstdlib:157:11: error: ‘::strtoul’ has not been declared
using ::strtoul;
^
/usr/include/c++/5/cstdlib:158:11: error: ‘::system’ has not been declared
using ::system;
^
/usr/include/c++/5/cstdlib:160:11: error: ‘::wcstombs’ has not been declared
using ::wcstombs;
^
/usr/include/c++/5/cstdlib:161:11: error: ‘::wctomb’ has not been declared
using ::wctomb;
^
/usr/include/c++/5/cstdlib:168:10: error: ‘ldiv_t’ does not name a type
inline ldiv_t
^
/usr/include/c++/5/cstdlib:214:11: error: ‘::lldiv_t’ has not been declared
using ::lldiv_t;
^
/usr/include/c++/5/cstdlib:220:11: error: ‘::_Exit’ has not been declared
using ::_Exit;
^
/usr/include/c++/5/cstdlib:224:11: error: ‘::llabs’ has not been declared
using ::llabs;
^
/usr/include/c++/5/cstdlib:226:10: error: ‘lldiv_t’ does not name a type
inline lldiv_t
^
/usr/include/c++/5/cstdlib:230:11: error: ‘::lldiv’ has not been declared
using ::lldiv;
^
/usr/include/c++/5/cstdlib:241:11: error: ‘::atoll’ has not been declared
using ::atoll;
^
/usr/include/c++/5/cstdlib:242:11: error: ‘::strtoll’ has not been declared
using ::strtoll;
^
/usr/include/c++/5/cstdlib:243:11: error: ‘::strtoull’ has not been declared
using ::strtoull;
^
/usr/include/c++/5/cstdlib:245:11: error: ‘::strtof’ has not been declared
using ::strtof;
^
/usr/include/c++/5/cstdlib:246:11: error: ‘::strtold’ has not been declared
using ::strtold;
^
/usr/include/c++/5/cstdlib:254:22: error: ‘__gnu_cxx::lldiv_t’ has not been declared
using ::__gnu_cxx::lldiv_t;
^
/usr/include/c++/5/cstdlib:256:22: error: ‘__gnu_cxx::_Exit’ has not been declared
using ::__gnu_cxx::_Exit;
^
/usr/include/c++/5/cstdlib:258:22: error: ‘__gnu_cxx::llabs’ has not been declared
using ::__gnu_cxx::llabs;
^
/usr/include/c++/5/cstdlib:259:22: error: ‘__gnu_cxx::div’ has not been declared
using ::__gnu_cxx::div;
^
/usr/include/c++/5/cstdlib:260:22: error: ‘__gnu_cxx::lldiv’ has not been declared
using ::__gnu_cxx::lldiv;
^
/usr/include/c++/5/cstdlib:262:22: error: ‘__gnu_cxx::atoll’ has not been declared
using ::__gnu_cxx::atoll;
^
/usr/include/c++/5/cstdlib:263:22: error: ‘__gnu_cxx::strtof’ has not been declared
using ::__gnu_cxx::strtof;
^
/usr/include/c++/5/cstdlib:264:22: error: ‘__gnu_cxx::strtoll’ has not been declared
using ::__gnu_cxx::strtoll;
^
/usr/include/c++/5/cstdlib:265:22: error: ‘__gnu_cxx::strtoull’ has not been declared
using ::__gnu_cxx::strtoull;
^
/usr/include/c++/5/cstdlib:266:22: error: ‘__gnu_cxx::strtold’ has not been declared
using ::__gnu_cxx::strtold;
^
In file included from /home/panfeng/downloads/libconfig-1.7.1/lib/libconfigcpp.cc:23:0:
/home/panfeng/downloads/libconfig-1.7.1/lib/libconfigcpp.c++: In destructor ‘virtual libconfig::ParseException::~ParseException()’:
/home/panfeng/downloads/libconfig-1.7.1/lib/libconfigcpp.c++:70:3: error: ‘::free’ has not been declared
::free((void *)_file);
^
/home/panfeng/downloads/libconfig-1.7.1/lib/libconfigcpp.c++: In member function ‘libconfig::SettingException& libconfig::SettingException::operator=(const libconfig::SettingException&)’:
/home/panfeng/downloads/libconfig-1.7.1/lib/libconfigcpp.c++:206:3: error: ‘::free’ has not been declared
::free(_path);
^
/home/panfeng/downloads/libconfig-1.7.1/lib/libconfigcpp.c++: In destructor ‘virtual libconfig::SettingException::~SettingException()’:
/home/panfeng/downloads/libconfig-1.7.1/lib/libconfigcpp.c++:223:3: error: ‘::free’ has not been declared
::free(_path);
^
lib/CMakeFiles/libconfig++.dir/build.make:230: recipe for target 'lib/CMakeFiles/libconfig++.dir/libconfigcpp.cc.o' failed
阅读installation instructions后。我试图在同一目录中运行./configure，但终端警告bash: ./configure: no such files or directories exist。谁可以帮忙？
答案 0 :(得分：1)
github版本不适合最终用户。从这里下载发布 tarball：
https://hyperrealm.github.io/libconfig/
然后使用configure脚本构建：
cd libconfig-1.7.1
./configure
make