[Packaging][deb] Failed to build with LLVM 7.1.0

[asfimport]

https://travis-ci.org/ursa-labs/crossbow/builds/527710714#L6144-L6157

CMake Error at cmake_modules/FindLLVM.cmake:33 (find_package):
  Could not find a configuration file for package "LLVM" that is compatible
  with requested version "7.0".
  The following configuration files were considered but not accepted:
    /usr/lib/llvm-7/cmake/LLVMConfig.cmake, version: 7.1.0
    /usr/lib/llvm-7/lib/cmake/llvm/LLVMConfig.cmake, version: 7.1.0
    /usr/lib/llvm-7/share/llvm/cmake/LLVMConfig.cmake, version: 7.1.0
    /usr/lib/llvm-3.8/share/llvm/cmake/LLVMConfig.cmake, version: 3.8.1
    /usr/share/llvm-3.8/cmake/LLVMConfig.cmake, version: 3.8.1
Call Stack (most recent call first):
  src/gandiva/CMakeLists.txt:31 (find_package)

Can we use "7" instead of "7.0" for ARROW_LLVM_VERSION?

Reporter: Kouhei Sutou / @kou
Assignee: Kouhei Sutou / @kou

PRs and other links:

• GitHub Pull Request #4453

_{Note: This issue was originally created as ARROW-5256. Please see the migration documentation for further details.}

[asfimport]

Antoine Pitrou / @pitrou:
LLVM does not guarantee API compatibility between releases, so you'll have to validate that everything works fine with that new version.

 

[asfimport]

Pindikura Ravindra / @pravindra:
The repo https://apt.llvm.org/ for ubuntu fetches 7.1 by default (for version 7). Should we also switch to 7.1 ?

[asfimport]

Wes McKinney / @wesm:
Probably. I think the point releases are supposed to be bugfix only?

[asfimport]

Wes McKinney / @wesm:
Issue resolved by pull request 4453
#4453