Also I should mention.  I get the same error when I use a different 
compiler (The D compiler dmd).  Both are 32 bit compilers.  Also, the first 
Tupfile rule in the github issue runs fine...it's only the rule that builds 
the .exe file that fails to "save dependencies".

On Wednesday, February 4, 2015 at 4:39:51 PM UTC-7, Jonathan Marler wrote:
>
> I'm actually using the 32 bit compiler:
>
> Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.40219.01 for 
> 80x86
>
>
> I didn't even involve visual studio, all I'm doing is calling the 32 bit 
> MSVC compiler directly from the command line (See the github issue to be 
> able to reproduce).  I was very surprised I couldn't even get through the 
> "A first Tupfile" example without encountering a bug in tup.  The 
> executable even gets built, it just says there's an error "saving 
> dependencies".  I'd be very surprised if I'm the first one who has 
> encountered this, but I didn't see any issues describing what happened to 
> me.  Does this happen to anyone else?  (See the github issue to reproduce).
>
> On Wednesday, February 4, 2015 at 12:38:56 AM UTC-7, Freddie Chopin wrote:
>>
>> On 02/04/2015 01:09 AM, Jonathan Marler wrote: 
>> > I just started with tup.  I had a problem on windows.  I posted a 
>> > github issue (https://github.com/gittup/tup/issues/219) but I'm not 
>> > sure who is checking those so I'm posting it to the group to see if I 
>> > can get some help. Thanks. 
>>
>> Now I don't know where to answer (; 
>>
>> The problem is most likely related to the state of tup's support for 
>> 64-bit tools. For a long time tup did not support 64-bit tools on 
>> Windows at all, so you had to use 32-bit tools, even if you were using 
>> 64-bit Windows (note that you can create 64-bit binaries with 32-bit 
>> compiler). This support was added very recently (in December?) so it's 
>> not a surprise that there are some problems left... 
>>
>> If I'm right and 64-bit compiler is indeed the issue here, then you have 
>> no other option other than finding a 32-bit version of the tools (or 
>> waiting for a fix in tup)... This problem is probably somehow related to 
>> Visual Studio, as I assume that tup's support for 64-bit Windows tools 
>> was tested so it should work at least in some common scenarios... 
>>
>> Regards, 
>> FCh 
>>
>

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