Re: SCons 3.1.2 Released

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On Mon, Dec 16, 2019 at 7:02 PM Bill Deegan <bill-cJFiu+DHMVC5azolltMz9laTQe2KTcn/@public.gmane.org>
wrote:

>     - EXPERIMENTAL NEW FEATURE: Enable caching MSVC configuration
>       If SCONS_CACHE_MSVC_CONFIG shell environment variable is set,
>       SCons will cache the results of past calls to vcvarsall.bat to
>       a file; integrates with existing memoizing of such vars.
>       On vs2019 saves 5+ seconds per SCons invocation, which really
>       helps test suite runs.
>

Thanks a bunch for this one!  Our bare, no-target 'scons' invocation is
down to about 0.8 seconds now, and we can do a single DLL build in ~2.5 s,
which makes things very snappy indeed.

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<div dir=3D"ltr"><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail=
_attr">On Mon, Dec 16, 2019 at 7:02 PM Bill Deegan &lt;<a href=3D"mailto:bi=
ll-cJFiu+DHMVC5azolltMz9laTQe2KTcn/@public.gmane.org">bill-cJFiu+DHMVC5azolltMz9laTQe2KTcn/@public.gmane.org</a>&gt; wrote:<br></div>=
<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-=
left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr">=C2=A0 =
=C2=A0 - EXPERIMENTAL NEW FEATURE: Enable caching MSVC configuration<br>=C2=
=A0 =C2=A0 =C2=A0 If SCONS_CACHE_MSVC_CONFIG shell environment variable is =
set,<br>=C2=A0 =C2=A0 =C2=A0 SCons will cache the results of past calls to =
vcvarsall.bat to<br>=C2=A0 =C2=A0 =C2=A0 a file; integrates with existing m=
emoizing of such vars.<br>=C2=A0 =C2=A0 =C2=A0 On vs2019 saves 5+ seconds p=
er SCons invocation, which really<br>=C2=A0 =C2=A0 =C2=A0 helps test suite =
runs.<br></div></blockquote><div><br></div><div style=3D"font-family:arial,=
sans-serif;color:rgb(0,0,0)" class=3D"gmail_default">Thanks a bunch for thi=
s one!=C2=A0 Our bare, no-target &#39;scons&#39; invocation is down to abou=
t 0.8 seconds now, and we can do a single DLL build in ~2.5 s, which makes =
things very snappy indeed.</div></div></div>

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