Re: [Boost-users] Regex boost 1.33 - (mingw/w32) linking

From: Arno Mauhourat (phedon_at_[hidden])
Date: 2005-08-31 03:54:15

> Well there's something wrong at your end, because it works for me:
>
> cd libs/regex/example/grep
> g++ -I../../../.. -c -o grep.o grep.cpp
> g++ -o grep.exe grep.o 
> 'C:\data\boost\develop\boost\bin\boost\libs\regex\build\libboost_regex.lib\mingw\debug\threading-multi\libboost_regex-mgw-mt-d-1_33.lib' 
> 'C:\data\boost\develop\boost\bin\boost\libs\program_options\build\libboost_program_options.lib\mingw\debug\threading-multi\libboost_program_options-mgw-mt-d-1_33.lib' 
> -g3
>
> compiles and links cleanly with the current MinGW release.
>
> John.
>
Thanks John, for your time and quick answers.
I found the issue:
I compiled "grep.cpp" with -O3 and this leads to:
- error at linking on debug version of the library 
(libboost_regex-mgw-mt-d-1_33.lib)
- OK linking with non-debug version (libboost_regex-mgw-mt-1_33.lib)

I am quite unfamiliar with g++ (and it is quite off topic here) but 
seems strange to me that an
optimization level ruins a linking...

Arno