llvm dev - Aug 2008 - [LLVMdev] [PATCH] GenLibsDep.pl fail-over for broken piping

Hello,

This patch adjusts GenLibDeps.pl to avoid falsely reporting that all 
libraries have no dependencies whatsoever.

If the %DepLibs hash proves to be empty after the loop in the 
gen_one_entry function:
* Assume that the command processor isn't *NIX-like enough to handle the 
piped command.
* Redo the hash construction (beyond the $nmPath invocation) in Perl.

Kenneth
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