build error in regex icu on AIX 5.3 with IBM Visual Age 9

[michael.hufer@…]

I get the following compile error when compiling the regex library with the Visual Age 9 compiler on AIX 5.3:

acpp.compile.c++ /home/mhufer/xgen-externals/boost/AIX-5.3/boost/bin.v2/libs/regex/build/vacpp/release/address-model-32/link-static/optimization-space/threading-multi/icu.o
"./boost/regex/icu.hpp", line 359.17: 1540-0403 (S) "boost::make_u32regex(const UChar *, boost::regex_constants::syntax_option_type)" is already defined.
"./boost/regex/icu.hpp", line 353.17: 1540-0425 (I) "make_u32regex" is defined on line 353 of "./boost/regex/icu.hpp".
"./boost/regex/icu.hpp", line 459.13: 1540-0403 (S) "boost::u32regex_match(const wchar_t *, match_results<const wchar_t *,std::allocator<boost::sub_match<const wchar_t *> > > &, const u32regex &, match_flag_type)" is already defined.
"./boost/regex/icu.hpp", line 451.13: 1540-0425 (I) "u32regex_match" is defined on line 451 of "./boost/regex/icu.hpp".
"./boost/regex/icu.hpp", line 523.13: 1540-0403 (S) "boost::u32regex_match(const wchar_t *, const u32regex &, match_flag_type)" is already defined.
"./boost/regex/icu.hpp", line 515.13: 1540-0425 (I) "u32regex_match" is defined on line 515 of "./boost/regex/icu.hpp".
"./boost/regex/icu.hpp", line 644.13: 1540-0403 (S) "boost::u32regex_search(const wchar_t *, match_results<const wchar_t *,std::allocator<boost::sub_match<const wchar_t *> > > &, const u32regex &, match_flag_type)" is already defined.
"./boost/regex/icu.hpp", line 636.13: 1540-0425 (I) "u32regex_search" is defined on line 636 of "./boost/regex/icu.hpp".
"./boost/regex/icu.hpp", line 705.13: 1540-0403 (S) "boost::u32regex_search(const wchar_t *, const u32regex &, match_flag_type)" is already defined.
"./boost/regex/icu.hpp", line 697.13: 1540-0425 (I) "u32regex_search" is defined on line 697 of "./boost/regex/icu.hpp".
"./boost/regex/v4/u32regex_iterator.hpp", line 170.40: 1540-0403 (S) "boost::make_u32regex_iterator(const UChar *, const u32regex &, regex_constants::match_flag_type)" is already defined.
"./boost/regex/v4/u32regex_iterator.hpp", line 164.42: 1540-0425 (I) "make_u32regex_iterator" is defined on line 164 of "./boost/regex/v4/u32regex_iterator.hpp".
"./boost/regex/v4/u32regex_token_iterator.hpp", line 286.46: 1540-0403 (S) "boost::make_u32regex_token_iterator(const UChar *, const u32regex &, int, regex_constants::match_flag_type)" is already defined.
"./boost/regex/v4/u32regex_token_iterator.hpp", line 280.48: 1540-0425 (I) "make_u32regex_token_iterator" is defined on line 280 of "./boost/regex/v4/u32regex_token_iterator.hpp".
"./boost/regex/v4/u32regex_token_iterator.hpp", line 318.46: 1540-0403 (S) "template <std::size_t N> boost::make_u32regex_token_iterator(const UChar *, const u32regex &, const int (&)[N], regex_constants::match_flag_type)" is already defined.
"./boost/regex/v4/u32regex_token_iterator.hpp", line 311.48: 1540-0425 (I) "make_u32regex_token_iterator" is defined on line 311 of "./boost/regex/v4/u32regex_token_iterator.hpp".
"./boost/regex/v4/u32regex_token_iterator.hpp", line 348.46: 1540-0403 (S) "boost::make_u32regex_token_iterator(const UChar *, const u32regex &, const vector<int,std::allocator<int> > &, regex_constants::match_flag_type)" is already defined.
"./boost/regex/v4/u32regex_token_iterator.hpp", line 342.48: 1540-0425 (I) "make_u32regex_token_iterator" is defined on line 342 of "./boost/regex/v4/u32regex_token_iterator.hpp".

    xlC_r -c   -DBOOST_ALL_NO_LIB=1 -DBOOST_HAS_ICU=1 -DNDEBUG -qcpluscmt -O2 -qcompact -qfuncsect -qeh -qrtti -I"." -I"/home/mhufer/xgen-externals/install/AIX-5.3/icu-3.8.1/include"  -o "/home/mhufer/xgen-externals/boost/AIX-5.3/boost/bin.v2/libs/regex/build/vacpp/release/address-model-32/link-static/optimization-space/threading-multi/icu.o" "libs/regex/src/../src/icu.cpp"

...failed vacpp.compile.c++ /home/mhufer/xgen-externals/boost/AIX-5.3/boost/bin.v2/libs/regex/build/vacpp/release/address-model-32/link-static/optimization-space/threading-multi/icu.o...

It seems that for this compiler either BOOST_NO_WREGEX or U_WCHAR_IS_UTF16 must be defined in the regex/config.hpp. I opted for the latter and added the following lines in boost/config.hpp:

#ifdef __IBMCPP__
#  define U_WCHAR_IS_UTF16
#endif

Note: I only use the V9 compiler and don't know whether defining this is necessary with older versions of the Visual Age compiler. So a "#if (IBMCPP >= 900 )" might actually be better...

[John Maddock]

Tentatively I hope I have this fixed: it's a question of picking up on ICU's configuration macros correctly, can you try applying this changeset: ​http://svn.boost.org/trac/boost/changeset/48312/trunk and let me know if it fixes things?

Thanks, John Maddock.

[John Maddock]

No reply, so assume fixed.