>> Compiling Utilities/HepMC/src/IO_Ascii.cc
In file included from Utilities/HepMC/interface/GenEvent.h:123:0,
                 from Utilities/HepMC/interface/IO_BaseClass.h:23,
                 from Utilities/HepMC/interface/IO_Ascii.h:45,
                 from Utilities/HepMC/src/IO_Ascii.cc:8:
Utilities/HepMC/interface/GenVertex.h:173:71: error: ‘ptrdiff_t’ was
not declared in this scope
Utilities/HepMC/interface/GenVertex.h:173:71: note: suggested
alternatives:

/usr/local/lib/gcc/x86_64-apple-darwin10.7.0/4.6.0/../../../../include/c++/4.6.0/x86_64-apple-darwin10.7.0/bits/c++config.h:156:28:
note:   ‘std::ptrdiff_t’

/usr/local/lib/gcc/x86_64-apple-darwin10.7.0/4.6.0/../../../../include/c++/4.6.0/x86_64-apple-darwin10.7.0/bits/c++config.h:156:28:
note:   ‘std::ptrdiff_t’
Utilities/HepMC/interface/GenVertex.h:173:80: error: template argument
3 is invalid
Utilities/HepMC/interface/GenVertex.h:237:69: error: ‘ptrdiff_t’ was
not declared in this scope
Utilities/HepMC/interface/GenVertex.h:237:69: note: suggested
alternatives:

/usr/local/lib/gcc/x86_64-apple-darwin10.7.0/4.6.0/../../../../include/c++/4.6.0/x86_64-apple-darwin10.7.0/bits/c++config.h:156:28:
note:   ‘std::ptrdiff_t’

/usr/local/lib/gcc/x86_64-apple-darwin10.7.0/4.6.0/../../../../include/c++/4.6.0/x86_64-apple-darwin10.7.0/bits/c++config.h:156:28:
note:   ‘std::ptrdiff_t’
Utilities/HepMC/interface/GenVertex.h:237:78: error: template argument
3 is invalid
Utilities/HepMC/interface/GenVertex.h:307:64: error: ‘ptrdiff_t’ was
not declared in this scope
Utilities/HepMC/interface/GenVertex.h:307:64: note: suggested
alternatives:

/usr/local/lib/gcc/x86_64-apple-darwin10.7.0/4.6.0/../../../../include/c++/4.6.0/x86_64-apple-darwin10.7.0/bits/c++config.h:156:28:
note:   ‘std::ptrdiff_t’

/usr/local/lib/gcc/x86_64-apple-darwin10.7.0/4.6.0/../../../../include/c++/4.6.0/x86_64-apple-darwin10.7.0/bits/c++config.h:156:28:
note:   ‘std::ptrdiff_t’
Utilities/HepMC/interface/GenVertex.h:307:73: error: template argument
3 is invalid
In file included from Utilities/HepMC/interface/IO_BaseClass.h:23:0,
                 from Utilities/HepMC/interface/IO_Ascii.h:45,
                 from Utilities/HepMC/src/IO_Ascii.cc:8:
Utilities/HepMC/interface/GenEvent.h:288:69: error: ‘ptrdiff_t’ was
not declared in this scope
Utilities/HepMC/interface/GenEvent.h:288:69: note: suggested alternatives:

/usr/local/lib/gcc/x86_64-apple-darwin10.7.0/4.6.0/../../../../include/c++/4.6.0/x86_64-apple-darwin10.7.0/bits/c++config.h:156:28:
note:   ‘std::ptrdiff_t’

/usr/local/lib/gcc/x86_64-apple-darwin10.7.0/4.6.0/../../../../include/c++/4.6.0/x86_64-apple-darwin10.7.0/bits/c++config.h:156:28:
note:   ‘std::ptrdiff_t’
Utilities/HepMC/interface/GenEvent.h:288:78: error: template argument
3 is invalid
Utilities/HepMC/interface/GenEvent.h:340:69: error: ‘ptrdiff_t’ was
not declared in this scope
Utilities/HepMC/interface/GenEvent.h:340:69: note: suggested alternatives:

/usr/local/lib/gcc/x86_64-apple-darwin10.7.0/4.6.0/../../../../include/c++/4.6.0/x86_64-apple-darwin10.7.0/bits/c++config.h:156:28:
note:   ‘std::ptrdiff_t’

/usr/local/lib/gcc/x86_64-apple-darwin10.7.0/4.6.0/../../../../include/c++/4.6.0/x86_64-apple-darwin10.7.0/bits/c++config.h:156:28:
note:   ‘std::ptrdiff_t’
Utilities/HepMC/interface/GenEvent.h:340:78: error: template argument
3 is invalid
Utilities/HepMC/interface/GenEvent.h:407:71: error: ‘ptrdiff_t’ was
not declared in this scope
Utilities/HepMC/interface/GenEvent.h:407:71: note: suggested alternatives:

/usr/local/lib/gcc/x86_64-apple-darwin10.7.0/4.6.0/../../../../include/c++/4.6.0/x86_64-apple-darwin10.7.0/bits/c++config.h:156:28:
note:   ‘std::ptrdiff_t’

/usr/local/lib/gcc/x86_64-apple-darwin10.7.0/4.6.0/../../../../include/c++/4.6.0/x86_64-apple-darwin10.7.0/bits/c++config.h:156:28:
note:   ‘std::ptrdiff_t’
Utilities/HepMC/interface/GenEvent.h:407:80: error: template argument
3 is invalid
Utilities/HepMC/interface/GenEvent.h:458:71: error: ‘ptrdiff_t’ was
not declared in this scope
Utilities/HepMC/interface/GenEvent.h:458:71: note: suggested alternatives:

/usr/local/lib/gcc/x86_64-apple-darwin10.7.0/4.6.0/../../../../include/c++/4.6.0/x86_64-apple-darwin10.7.0/bits/c++config.h:156:28:
note:   ‘std::ptrdiff_t’

/usr/local/lib/gcc/x86_64-apple-darwin10.7.0/4.6.0/../../../../include/c++/4.6.0/x86_64-apple-darwin10.7.0/bits/c++config.h:156:28:
note:   ‘std::ptrdiff_t’
Utilities/HepMC/interface/GenEvent.h:458:80: error: template argument
3 is invalid
make: *** [tmp/Utilities/HepMC/src/IO_Ascii.o] Error 1