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Subject:	Re: Deterministic builds
To:	cygwin AT cygwin DOT com
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From:	Ken Brown <kbrown AT cornell DOT edu>
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Date:	Thu, 5 May 2016 13:59:42 -0400
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On 5/4/2016 1:39 PM, Ken Brown wrote:
> On 5/4/2016 1:21 PM, Ismail Donmez wrote:
>> You can easily disable this feature:
>>
>> latte ~ > gcc -Wl,--no-insert-timestamp hello.c
>> latte ~ > objdump -p a.exe | grep Time/Date
>> Time/Date               Thu Jan  1 03:31:53 1970
>> latte ~ > gcc -Wl,--no-insert-timestamp hello.c
>> latte ~ > objdump -p a.exe | grep Time/Date
>> Time/Date               Thu Jan  1 03:31:53 1970
>
> Thank you!  That's exactly what I was looking for.

Just for the record, in case anyone else finds this useful, Ismail's 
suggestion did indeed produce deterministic builds in my setup.  I built 
a large project with about 150 executables, changed a few source files, 
removed the build directory, rebuilt, and found that only the (expected) 
few executables changed.

Ken


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