[PATCH] D12810: [Polly] Compile ISL into its own library

[Michael Kruse via llvm-commits]

Meinersbur created this revision.
Meinersbur added reviewers: grosser, jdoerfert.
Meinersbur added subscribers: llvm-commits, pollydev.
Meinersbur added a project: Polly.

Refactor all ISL-related cmake build instructions into its own CMakeLists.txt and build as a separate library.

This is useful to apply ISL-related build flags to ISL only and not to Polly's files. Also, it the separation of both projects becomes clearer.

Proposed name of the library is Polly_isl. It is not "isl" to avoid mix-up with potentially installed libisl.{a|so}.

Tested configurations:
- Windows with cmake 3.2
- Ubuntu with cmake 3.0.2 
- Ubuntu with cmake 3.0.2  BUILD_SHARED_LIBS on
- Ubuntu with cmake 2.8.12.2 (LLVM minimum version)
- Ubuntu out-of-LLVM-tree


http://reviews.llvm.org/D12810

Files:
  CMakeLists.txt
  cmake/polly_macros.cmake
  lib/CMakeLists.txt
  lib/External/CMakeLists.txt

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