ghc 6.3 windows (mingw) cannot invoke gcc correctly

[kyra]

Hi,

After downgrading a mingw gcc from 3.3.1 to 3.2.3 I've managed to build and
install ghc 6.3 compiler.

Unfortunately, it cannot compile source files. It seems it incorrectly
invokes gcc .

"ghc -c -v filt.hs" gives something like this:

ghc-6.3 (incorrect):
...................
*** Assembler
g:\Progs\ghc-6.3\gcc -B"g:\Progs\ghc-6.3\gcc-lib/" -I. -I. -c
C:\DOCUME~1\Awson\LOCALS~1\Temp\ghc1252.s -o .\Main.o

Failed: g:\Progs\ghc-6.3\gcc -B"g:\Progs\ghc-6.3\gcc-lib/" -I. -I. -c
C:\DOCUME~1\Awson\LOCALS~1\Temp\ghc1252.s -o .\Main.orawSystem: does not
exist (No such file or directory)

...................


ghc-6.0.1 (correct):
...................
*** Assembler
G:\Progs\ghc-6.0.1\gcc -B"G:\Progs\ghc-6.0.1\gcc-lib/" "-I." "-I." "-c"
"C:\DOCUME~1\Awson\LOCALS~1\Temp\ghc812.s" "-o" "filt.o"

...................

Meanwhile, ghc-6.3 correctly outputs intermediate .c or .s (when compiling
without gcc) files.

I'm completely stuck.

Regards,
Kyra