Problem with GCC 4.5.0 and canadian cross compilation

Ralf Corsepius ralf.corsepius at
Tue Apr 13 15:56:59 UTC 2010

On 04/13/2010 03:49 PM, Sebastian Huber wrote:
> Hi,
> I had problems building GCC 4.5.0 under MinGW/MSYS, so I tried to build the
> cross compiler for the Windows host with a Linux build machine.  The Windows
> cross compiler is:
> i686-w64-mingw32-gcc (GCC) 4.4.4 20100409 (prerelease)
Where does this toolchain stem from?

Is this an attempt on mingw64 toolchain?

AFACT, mingw64 is still way off from being usable.

> The standard MinGW tool chain from:
> does not seem to have this problem.
What is it that you can't use them?

>  Can someone give me a hint?   Which cross
> compiler for Windows was used for the standard MinGW tool chain?

Building a mingw32 or cygwin Mingw32->rtems cross-toolchain
on Linux actually is triple-leaf Canadian Cross building

This means, there are several toolchains involved:
a) A linux native gcc
b) A linux->mingw32 cross-toolchain
c) A Linux->rtems cross toolchains

The toolchains in are built on Fedora-13-i386 
and involve
a) Fedora's native gcc
b) Fedora's Linux->mingw32 toolchain
c) My Linux->rtems toolchains

Also, special care needs to be taken about dependency libs and about 
CFLAGS being used. My guess would be, when you check your logs you'd 
likely discover failures.


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