Question

命令行是

g++ -c -Wall -I "C:/cygwin/usr/include/" test.cpp

以下是错误消息：

C:/cygwin/usr/include/stdint.h:62:22: error: conflicting declaration 'typedef unsigned int uintptr_t'
c:/python27/egg-info/mingw/usr/lib/gcc/../../x86_64-w64-mingw32/include/_mingw.h:352:44: error: 'uintptr_t' has a previous declaration as 'typedef long long unsigned int uintptr_t'
In file included from C:/cygwin/usr/include/boost/assert.hpp:81:0,
                 from C:/cygwin/usr/include/boost/system/error_code.hpp:16,
                 from C:/cygwin/usr/include/boost/filesystem/v3/path_traits.hpp:23,
                 from C:/cygwin/usr/include/boost/filesystem/v3/path.hpp:25,
                 from C:/cygwin/usr/include/boost/filesystem.hpp:35,

c:/python27/egg-info/mingw/usr/lib/gcc/../../x86_64-w64-mingw32/include/c++/4.5.2/cstdlib:195:11: error: '::strtold' has
 not been declared
c:/python27/egg-info/mingw/usr/lib/gcc/../../x86_64-w64-mingw32/include/c++/4.5.2/cstdlib:215:22: error: '__gnu_cxx::str
told' has not been declared
In file included from c:/python27/egg-info/mingw/usr/lib/gcc/../../x86_64-w64-mingw32/include/c++/4.5.2/bits/postypes.h:
42:0,
                 from c:/python27/egg-info/mingw/usr/lib/gcc/../../x86_64-w64-mingw32/include/c++/4.5.2/iosfwd:42,
                 from c:/python27/egg-info/mingw/usr/lib/gcc/../../x86_64-w64-mingw32/include/c++/4.5.2/ios:39,
                 from c:/python27/egg-info/mingw/usr/lib/gcc/../../x86_64-w64-mingw32/include/c++/4.5.2/ostream:40,
                 from c:/python27/egg-info/mingw/usr/lib/gcc/../../x86_64-w64-mingw32/include/c++/4.5.2/iostream:40,
                 from C:/cygwin/usr/include/boost/assert.hpp:82,
                 from C:/cygwin/usr/include/boost/system/error_code.hpp:16,
                 from C:/cygwin/usr/include/boost/filesystem/v3/path_traits.hpp:23,
                 from C:/cygwin/usr/include/boost/filesystem/v3/path.hpp:25,
                 from C:/cygwin/usr/include/boost/filesystem.hpp:35,

任何帮助，我都不明白为什么要检查python27目录。

Answer 1

看起来python27文件夹包含mingw - 这是cygwin替代方案。可能默认标题搜索路径设置为mingw的目录（c：/ python27 / egg-info / mingw / usr / lib / gcc /../../ x86_64-w64-mingw32 / include /）。

检查以下环境变量集：

CPATH
C_INCLUDE_PATH
CPLUS_INCLUDE_PATH
OBJC_INCLUDE_PATH

你也可以尝试编译： 1）-nostdinc选项忽略默认包括dirs 2）-v详细g++输出

在cygwin错误下提升

1 个答案: