[PATCH 07 of 10 V5] rcutil: let environ override system configs (BC)

[Matt Harbison]

On Fri, 07 Apr 2017 01:13:20 -0400, Jun Wu <quark at fb.com> wrote:

> Excerpts from Matt Harbison's message of 2017-04-07 00:35:42 -0400:
>> > Just to confirm: if you run "make local", it will say "cl.exe ..."
>> > instead
>> > of "gcc ..." (where gcc could come from MinGW).
>>
>> Yep.
>>
>> $ make local | grep cl.exe
>> c:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\amd64\cl.exe  
>> /c
>> /nologo /Ox /MD /W3 /GS- /DNDEBUG -Ic:\Python27\include -Ic:\Python27\PC
>> /Tcmercurial/bdiff.c
>> /Fobuild\temp.win-amd64-2.7\Release\mercurial/bdiff.obj
>> ...
>>
>> > And you are using Python for
>> > Windows, not some cygwin or mingw Python.
>>
>> Correct.  2.7.13, from the python.org Windows installer.
>>
>> > And the shell is provided by MinGW.
>>
>> I've never had cygwin or anything else installed.  The titlebar says
>> "MINGW32", and $SHELL is /bin/sh.  Not sure if there's something  
>> specific
>> I should check here.
>
> Thanks. I have sent a fix.

That did the trick, thanks.  Out of curiosity, how did you figure you the  
problem from that error message?  xargs would have been the last thing I  
would have suspected.