RE: [Boost-users] Re: Building boost threads with MinGW

Hi Raoul, Here's my compiler details: $ g++ -v Reading specs from C:/msys/1.0/mingw/bin/../lib/gcc-lib/mingw32/3.2.3/specs Configured with: ../gcc/configure --with-gcc --with-gnu-ld --with-gnu-as --host=mingw32 --target=mingw32 --prefix=/mingw --enable-threads --disable-nls --enable-languages=c++,f77,objc --disable-win32-registry --disable-shared --enable-sjlj-exceptions Thread model: win32 gcc version 3.2.3 (mingw special 20030504-1) Anyway, I have now managed to get a build of boost threads that depends on mingwm10.dll by editing gcc-tools.jam to compile and link with -mthreads. My guess is that there's a jam option to do that anyway but I'm not very familiar with jam. I took a look at your bug report and it strikes me that it could be an undefined behaviour issue because initialization of the reference fails. Jeremy

-----Original Message----- From: boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Raoul Gough Sent: 26 September 2003 12:05 To: boost-users@lists.boost.org Subject: [Boost-users] Re: Building boost threads with MinGW

"Jeremy Godfrey" writes:

...

Hi,

When I build boost threads with bjam and MinGW, the resulting DLL is not dependent on mingwm10.dll like (as I understand things) all MinGW multithreaded binaries should be. This would indicate that the -mthreads compile/link option is not being used. Does anyone know how to fix this?

I guess your analysis is correct - my copy of boost_thread.dll imports the function __mingwthr_key_dtor from mingwm10.dll. What does "g++ -v" report for you?

$ f:/mingw/bin/g++ -v Reading specs from f:/mingw/bin/../lib/gcc-lib/mingw32/3.3.1/specs Configured with: ../gcc/configure --with-gcc --with-gnu-ld --with-gnu-as --host=mingw32 --target=mingw32 --prefix=/mingw --enable-threads --disable-nls --enable-languages=c,c++,f77,objc,ada,java --disable-win32-registry --disable-shared --enable-sjlj-exceptions --enable-libgcj --disable-java-awt --without-x --enable-java-gc=boehm --disable-libgcj-debug --enable-interpreter --enable-hash-synchronization Thread model: win32 gcc version 3.3.1 (mingw special 20030804-1)

One fix would be to download the same gcc 3.3.1 executable as I have from the mingw site (but be warned that I recently detected a bug with this compiler's sjlj exception handling - see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12298 for the gory details). If you're building gcc yourself, maybe you need to supply some of the configure options manually?

-- Raoul Gough. (setq dabbrev-case-fold-search nil)

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