Re: mingw32 subtle build failure

[Dave Murphy <wintermute2k4 at ntlworld dot com>]

FX Coudert wrote:
> Hi all, hi mingw32 maintainers,
>
> I'm experiencing a strange bug building mainline as a native compiler 
> on i386-pc-mingw32 (with MSYS). It builds fine with the following 
> configure line:
>
> > ../gcc/configure   --prefix=/mingw --with-gmp=/home/coudert/local 
> > --disable-nls --with-ld=/mingw/bin/ld --with-as=/mingw/bin/as 
> > --disable-werror --enable-bootstrap --enable-threads 
> > --host=i386-pc-mingw32 --enable-languages=c,fortran
>
> If I add the --enable-libgomp option (I know libgomp is not supposed 
> to compile, but go on reading) it fails in 
> configure-stage3-libdecnumber (that is, even *before* doing anything 
> with libgomp): the error (from config.log) is the following:
>
> > configure:1751: error: C compiler cannot create executables
> > xgcc.exe: CreateProcess: No such file or directory
>
> Now, if I run the same command line that failed during configure, 
> directly inside a shell, it works nicely. To understand this strange 
> failure, I changed libiberty/pex-win32.c to print
>
> > printf ("CreateProcess (%s, %s, ...)\n", full_executable, cmdline);
>
> just before the CreateProcess call, I get the following output:
>
> > xgcc.exe: CreateProcess: No such file or directory^M
This looks to me like a side effect of some file somewhere being 
generated with DOS line endings. I had something vaguely similar 
building a powerpc cross compiler on mingw/mys, noted in this message 
http://sourceforge.net/mailarchive/message.php?msg_id=15373554

Maybe it will give you a clue what to look for, I have no idea otherwise.

Dave