在VS2012项目上编译Boost C ++库

Question

I am trying to build a project which has Boost and OpenCV dependencies. Other projects having similar dependencies seem to work fine but this throws the following errors:

1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/detail/round_fwd.hpp(42): error C2143: syntax error : missing ';' before '&'
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/detail/round_fwd.hpp(42): error C2734: 'boost::math::T' : const object must be initialized if not extern
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/detail/round_fwd.hpp(42): error C2365: 'T' : redefinition; previous definition was 'template parameter'
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/detail/round_fwd.hpp(42): error C2143: syntax error : missing ';' before '>='
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/detail/round_fwd.hpp(44): error C2065: 'T' : undeclared identifier
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/detail/round_fwd.hpp(44): error C2923: 'boost::math::tools::promote_args' : 'T' is not a valid template type argument for parameter 'T1'
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/detail/round_fwd.hpp(44): error C2988: unrecognizable template declaration/definition
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/detail/round_fwd.hpp(44): error C2059: syntax error : '<cv-qualifer>'
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/detail/round_fwd.hpp(44): error C2062: type 'int' unexpected
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/detail/round_fwd.hpp(44): error C2059: syntax error : ')'
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/round.hpp(20): warning C4002: too many actual parameters for macro 'round'
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/round.hpp(20): error C2143: syntax error : missing ';' before '&'
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/round.hpp(20): error C2433: 'T' : 'inline' not permitted on data declarations
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/round.hpp(20): error C2734: 'boost::math::T' : const object must be initialized if not extern
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/round.hpp(20): error C2365: 'T' : redefinition; previous definition was 'template parameter'
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/round.hpp(20): error C2143: syntax error : missing ';' before '>='
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/round.hpp(29): error C2065: 'T' : undeclared identifier
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/round.hpp(29): error C2923: 'boost::math::tools::promote_args' : 'T' is not a valid template type argument for parameter 'T1'
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/round.hpp(29): error C2988: unrecognizable template declaration/definition
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/round.hpp(29): error C2059: syntax error : '<cv-qualifer>'
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/round.hpp(29): error C2062: type 'int' unexpected
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/round.hpp(29): error C2059: syntax error : ')'
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/round.hpp(30): error C2143: syntax error : missing ';' before '{'
1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/round.hpp(30): error C2447: '{' : missing function header (old-style formal list?)

What is the probable issue here?

I have changed the name of the macro round to something else and now its past these errors. But now, another error has sprung up: Actually this was a linux implementation. I am trying to run it in Windows and thereby I added the timeoftheday implementation in windows to the code.

1>eval_ffd.obj : error LNK2005: main already defined in demo.obj
1>eval_ffd.obj : error LNK2005: "void __cdecl eval_forest(struct FaceForestOptions,class std::vector<struct FaceAnnotation,class std::allocator<struct FaceAnnotation> > &)" (?eval_forest@@YAXUFaceForestOptions@@AEAV?$vector@UFaceAnnotation@@V?$allocator@UFaceAnnotation@@@std@@@std@@@Z) already defined in demo.obj
1>eval_ffd.obj : error LNK2005: "int __cdecl gettimeofday(struct timeval *,struct timezone *)" (?gettimeofday@@YAHPEAUtimeval@@PEAUtimezone@@@Z) already defined in demo.obj
1>face_forest.obj : error LNK2005: "int __cdecl gettimeofday(struct timeval *,struct timezone *)" (?gettimeofday@@YAHPEAUtimeval@@PEAUtimezone@@@Z) already defined in demo.obj
1>face_utils.obj : error LNK2005: "int __cdecl gettimeofday(struct timeval *,struct timezone *)" (?gettimeofday@@YAHPEAUtimeval@@PEAUtimezone@@@Z) already defined in demo.obj
1>head_pose_sample.obj : error LNK2005: "int __cdecl gettimeofday(struct timeval *,struct timezone *)" (?gettimeofday@@YAHPEAUtimeval@@PEAUtimezone@@@Z) already defined in demo.obj
1>image_sample.obj : error LNK2005: "int __cdecl gettimeofday(struct timeval *,struct timezone *)" (?gettimeofday@@YAHPEAUtimeval@@PEAUtimezone@@@Z) already defined in demo.obj
1>multi_part_sample.obj : error LNK2005: "int __cdecl gettimeofday(struct timeval *,struct timezone *)" (?gettimeofday@@YAHPEAUtimeval@@PEAUtimezone@@@Z) already defined in demo.obj
1>train_ffd.obj : error LNK2005: main already defined in demo.obj
1>train_ffd.obj : error LNK2005: "int __cdecl gettimeofday(struct timeval *,struct timezone *)" (?gettimeofday@@YAHPEAUtimeval@@PEAUtimezone@@@Z) already defined in demo.obj
1>train_headpose.obj : error LNK2005: main already defined in demo.obj
1>train_headpose.obj : error LNK2005: "int __cdecl gettimeofday(struct timeval *,struct timezone *)" (?gettimeofday@@YAHPEAUtimeval@@PEAUtimezone@@@Z) already defined in demo.obj
1>LINK : fatal error LNK1104: cannot open file 'libboost_system-vc110-mt-1_54.lib'

Answer 1

It looks like something is declaring a macro called 'round'.

In your errors, see the line:

1>C:\boost_1_54_0\boost_1_54_0\boost/math/special_functions/round.hpp(20): warning C4002: too many actual parameters for macro 'round'

Do a file wide search for #define round in any library dependencies and in your own code.

Depending upon what defines it, you may have a few options for fixing the problem:

• Don't include the header
• See if the header does not define round if there is some predefined macro that you can include in your build settings.
• #undef round before including boost
• #include the header in your precompiled header and #undef round