[Scons-dev] Supefluous tempfiles used for DLLs

[Kyle J Strand]

It appears to me that whenever SCons builds DLL using a link command that 
exceeds the length of $MAXLINELENGTH, it makes a tempfile and uses it to 
perform the link command as expected, but then makes a second tempfile 
with the exact same content that never gets used. Here's sample output:

Using tempfile c:\users\kjstrand\appdata\local\temp\tmpnrlhqp.lnk for 
command line:
cl /Fobuild\test.obj /c src\test.cpp /TP /nologo /DLIB_PACK_EXPORT
cl @c:\users\kjstrand\appdata\local\temp\tmpnrlhqp.lnk
Using tempfile c:\users\kjstrand\appdata\local\temp\tmpzj9cph.lnk for 
command line:
cl /Fobuild\test.obj /c src\test.cpp /TP /nologo /DLIB_PACK_EXPORT

The second tempfile, tmpzj9cph.lnk in this case, appears nowhere else in 
the output for this run. This is the behavior I observe for every DLL 
build using a tempfile. Oddly enough, though, I don't observe this when 
static libs are built. Is this actually a bug, or does SCons actually need 
that second tempfile for some reason? Of course, this doesn't seem like a 
hugely important bug, but I figured it would be worth asking about.

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Kyle Strand, Software Intern
Beckman Coulter, Inc., Life Sciences Division
4862 Innovation Drive, Fort Collins, Colorado, 80525
(970) 204-7036
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