RE: [Mingw-users] mingw32 DLLs, threads and exceptions HOWTO (Update)

[Al S. <al....@sc...>]

Hi,

I have followed the instructions here to build gcc-mt-2.95.3.dll and
libmingthrd.a.

I am now trying to build a library (xerces-c) and at the link stage I am
getting the
following errors :

f:/mingw/bin/../lib/gcc-lib/mingw32/2.95.3-6/libgcc.a(tinfo2.o)(.text+0x4d0)
: multiple definition of `__rtti_ptr'
f:/mingw/bin/../lib/gcc-lib/mingw32/2.95.3-6/../../../libmingwthrd.a(ds00067
.o)(.text+0x0): first defined here
...
lots more like above...

I am sure that all cpp files have been compiled with the -mthreads option.

What else could be going wrong?

Al Slater

> -----Original Message-----
> From: min...@li...
> [mailto:min...@li...]On Behalf Of Thomas
> Pfaff
> Sent: 21 January 2002 08:23
> To: Min...@li...;
> pth...@so...
> Subject: [Mingw-users] mingw32 DLLs, threads and exceptions HOWTO
> (Update)
>
>
>
> This is an update of my HOWTO that i have posted about an year ago
> (see http://www.geocrawler.com/archives/3/6013/2000/12/100/4789494 ).
> After some discussion with Danny i think that he is right with his
> solution to not touch libgcc.a (see
> http://www.geocrawler.com/archives/3/6013/2001/4/250/5485779 ) and
> create a replacement libmingthrd.a instead. I have modified
> his Makefile a
> little to create a import library named libmingthrd.a
> directly so you must
> not edit the specs file.
>
> The advantages are:
>
> 1. libgcc.a remains unchanged.
> 2. There is only one dll left, mingwm10.dll is not needed anymore.
>
> The instructions are simple:
>
> Create a directory with libgcc.a, the attached Makefile and mthr.c,
> mthr_init.c and crtmt.c from the mingw runtime sources. To
> avoid memory
> leaks you should use runtime 1.2 or above.
>
> After running make the directory will build a new libmingthrd.a and
> gcc-mt-2.95.3.dll (the replacement for mingwm10.dll).
> libmingthrd.a should be copied to the mingw32\lib directory
> (rename the
> original libmingthrd.a first), the dll should be copied
> somewhere in your
> Path (the mingw32\bin directory for example).
>
> Regards,
>
> Thomas
>