[PATCH] D11835: Make `llvm-config` work when static versions of LLVM's components aren't installed.

[Richard Diamond via llvm-commits]

DiamondLovesYou created this revision.
DiamondLovesYou added reviewers: jfb, brad.king.
DiamondLovesYou added a subscriber: llvm-commits.

The following only applies if the following is true:

 * `llvm-config` isn't inside the build tree (ie it's installed).
 * LLVM is built with shared libs enabled.
 * `llvm-config` finds the platform specific shared library file in the 'lib'
   subfolder within the install root (ie it finds 'libLLVM-3.7.0svn.so' on
   Linux).

If `llvm-config`, when visiting the components, finds a missing archive, it
will override the set of `RequiredLibs` to only include the shared library. Note
this means that if one has installed only select libraries in static form and
component X and it's deps are among them, `--libname X` will still print the
static archive names. I wouldn't recommending doing that (installing shared
library + only some static libraries) for obvious reasons, but I thought it
should be documented nonetheless.

http://reviews.llvm.org/D11835

Files:
  bindings/ocaml/Makefile.ocaml
  tools/llvm-config/BuildVariables.inc.in
  tools/llvm-config/Makefile
  tools/llvm-config/llvm-config.cpp

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