I'm trying to bind a C++ library that comes with a SWIG interface file. However, when I try to compile the wrapper code that is generated by

swig -c++ -perl5 pwiz_swigbindings.i

I get ~ 3k lines of warnings and errors. The first 50 lines are included here:

In file included from pwiz_swigbindings_wrap.cxx:745:0:
/usr/lib/x86_64-linux-gnu/perl/5.20/CORE/XSUB.h:126:39: error: referen
+ce to ‘CV’ is ambiguous
 #define XSPROTO(name) void name(pTHX_ CV* cv)
                                       ^
/usr/lib/x86_64-linux-gnu/perl/5.20/CORE/XSUB.h:145:44: note: in expan
+sion of macro ‘XSPROTO’
 #      define XS_EXTERNAL(name) extern "C" XSPROTO(name)
                                            ^
/usr/lib/x86_64-linux-gnu/perl/5.20/CORE/XSUB.h:156:18: note: in expan
+sion of macro ‘XS_EXTERNAL’
 #define XS(name) XS_EXTERNAL(name)
                  ^
pwiz_swigbindings_wrap.cxx:2149:1: note: in expansion of macro ‘XS’
 XS(_wrap_new_vectord__SWIG_0) {
 ^
In file included from pwiz_swigbindings_wrap.cxx:744:0:
/usr/lib/x86_64-linux-gnu/perl/5.20/CORE/perl.h:2317:19: note: candida
+tes are: typedef struct cv CV
 typedef struct cv CV;
                   ^
In file included from pwiz_swigbindings_wrap.cxx:1862:0:
../../../data/common/cv.hpp:12996:22: note:                 struct pwi
+z::cv::CV
 struct PWIZ_API_DECL CV
                      ^
In file included from pwiz_swigbindings_wrap.cxx:745:0:
/usr/lib/x86_64-linux-gnu/perl/5.20/CORE/XSUB.h:126:39: error: ‘CV’ ha
+s not been declared
 #define XSPROTO(name) void name(pTHX_ CV* cv)
                                       ^
/usr/lib/x86_64-linux-gnu/perl/5.20/CORE/XSUB.h:145:44: note: in expan
+sion of macro ‘XSPROTO’
 #      define XS_EXTERNAL(name) extern "C" XSPROTO(name)
                                            ^
/usr/lib/x86_64-linux-gnu/perl/5.20/CORE/XSUB.h:156:18: note: in expan
+sion of macro ‘XS_EXTERNAL’
 #define XS(name) XS_EXTERNAL(name)
                  ^
pwiz_swigbindings_wrap.cxx:2149:1: note: in expansion of macro ‘XS’
 XS(_wrap_new_vectord__SWIG_0) {
 ^
/usr/lib/x86_64-linux-gnu/perl/5.20/CORE/XSUB.h:126:39: error: referen
+ce to ‘CV’ is ambiguous
 #define XSPROTO(name) void name(pTHX_ CV* cv)
                                       ^
/usr/lib/x86_64-linux-gnu/perl/5.20/CORE/XSUB.h:145:44: note: in expan
+sion of macro ‘XSPROTO’
 #      define XS_EXTERNAL(name) extern "C" XSPROTO(name)
                                            ^
/usr/lib/x86_64-linux-gnu/perl/5.20/CORE/XSUB.h:156:18: note: in expan
+sion of macro ‘XS_EXTERNAL’
 #define XS(name) XS_EXTERNAL(name)
                  ^
pwiz_swigbindings_wrap.cxx:2177:1: note: in expansion of macro ‘XS’
 XS(_wrap_new_vectord__SWIG_1) {
 ^
In file included from pwiz_swigbindings_wrap.cxx:744:0:
/usr/lib/x86_64-linux-gnu/perl/5.20/CORE/perl.h:2317:19: note: candida
+tes are: typedef struct cv CV
 typedef struct cv CV;

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Please bear with me - I'm not much into C/C++ or the Perl internals - but it seems like CV is a core Perl symbol as well as being defined as a class by the library I'm binding, which is causing problems. The rest of the errors/warnings seems to relate to 'CV' as well. In the external library, 'CV' is defined within the "pwiz::cv::" namespace, but it still seems to be conflicting.

Has anyone dealt with a similar issue or have any guidance on how to get around this?

In reply to SWIG and conflicting definitions by jdv

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