Enable the makefile check on the result of find-cycles.pl. LLVM is now
cycle free and we intend to keep it that way. This patch will fail the
build if cycles are found.
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dependency is found. The find-cycles.pl script now exits with a return code
that equals the number of cycles found. The Makefile was changed to ignore
the status code of find-cycles.pl. This should be removed once the libraries
are free of cyclic dependencies.
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1. Check for Perl and only build llvm-config if its available.
2. Add some virtual components
3. Don't depend on "standard" location for Perl, but configured location
4. Document the tool with a POD file.
This version is now ready for testing by users.
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is a handy tool for users of LLVM who want to be able to quickly get
information about LLVM's configuration. It is intended to be used in the
command line of other tools. Documentation will be forthcoming in a
subsequent patch.
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