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Date: Mon, 27 Feb 2012 16:12:09 +0000
From: Paul Keir <paul AT codeplay DOT com>
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To: cygwin AT cygwin DOT com
Subject: Re: GCC  fatal error: can't open /tmp/ccc6IHTT.s for writing
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Thanks Dave, it's fixed. It looks like the problem was the cygwin1.dll 
in C:\Windows\SYSTEM. I have no idea why that was there. (I am not the 
first to use this machine.)

As a precaution I have also removed 
C:\Users\XXXXXXXX\home\apps\gcc-4.7-20120128\bin from my PATH. I had 
built it with --program-suffix=-4.7, but the following potentially 
conflicting files remain there with their names untouched:

cyggfortran-3.dll
cygssp-0.dll
cygstdc++-6.dll

Thanks again.

On 24/02/2012 16:34, Dave Korn wrote:
> On 24/02/2012 15:36, Paul Keir wrote:
>> echo $? returns 1 after using gcc.
>    Right, that's "helpful" of it!  That's clearly just a fail status but not an
> errno value.
>
>    Anyway, I think your cygcheck reveals the problem.  You have multiple
> cygwin1.dlls of different versions in your path at the same time.  You also
> have a homebrew build of gcc 4.7 in your path, and it's using SJLJ exceptions
> rather than DW2, which means that its runtime DLLs will be incompatible with
> the standard system ones.
>
>    Try removing the cygwin1.dll from C:\Windows\SYSTEM, and cutting
> C:\Users\XXXXXXXX\home\apps\gcc-4.7-20120128\bin out of your PATH, and see if
> that fixes it.
>
>      cheers,
>        DaveK
>
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