llvm-toolchain-8 ftbfs in eoan

[Matthias Klose]

https://launchpadlibrarian.net/441262061/buildlog_ubuntu-eoan-amd64.llvm-toolchain-8_1%3A8.0.1-3build1_BUILDING.txt.gz

CMake Warning (dev) at /usr/share/cmake-3.13/Modules/CheckIncludeFiles.cmake:110 (message):
  Policy CMP0075 is not set: Include file check macros honor
  CMAKE_REQUIRED_LIBRARIES. Run "cmake --help-policy CMP0075" for policy
  details. Use the cmake_policy command to set the policy and suppress this
  warning.

  CMAKE_REQUIRED_LIBRARIES is set to:

    m

  For compatibility with CMake 3.11 and below this check is ignoring it.
Call Stack (most recent call first):
  projects/openmp/runtime/cmake/config-ix.cmake:236 (check_include_files)
  projects/openmp/runtime/CMakeLists.txt:234 (include)
This warning is for project developers. Use -Wno-dev to suppress it.

-- Looking for include files windows.h, psapi.h
-- Looking for include files windows.h, psapi.h - not found
-- Looking for EnumProcessModules in psapi
-- Looking for EnumProcessModules in psapi - not found
-- Looking for sqrt in m
-- Looking for sqrt in m - not found
-- Looking for __atomic_load_1
-- Looking for __atomic_load_1 - not found
-- Looking for __atomic_load_1 in atomic
-- Looking for __atomic_load_1 in atomic - not found
-- Sphinx enabled.
-- Found Sphinx: /usr/bin/sphinx-build
-- ISL version: isl-0.20-65-gb822a210
-- Performing Test HAS_ATTRIBUTE_WARN_UNUSED_RESULT
-- Performing Test HAS_ATTRIBUTE_WARN_UNUSED_RESULT - Failed
-- Performing Test HAVE___ATTRIBUTE__
-- Performing Test HAVE___ATTRIBUTE__ - Failed
-- Performing Test HAVE_DECL_FFS
-- Performing Test HAVE_DECL_FFS - Failed
-- Performing Test HAVE_DECL___BUILTIN_FFS
-- Performing Test HAVE_DECL___BUILTIN_FFS - Failed
-- Performing Test HAVE_DECL__BITSCANFORWARD
-- Performing Test HAVE_DECL__BITSCANFORWARD - Failed
CMake Error at tools/polly/lib/External/CMakeLists.txt:91 (message):
  No ffs implementation found

-- Configuring incomplete, errors occurred!
See also "/<<PKGBUILDDIR>>/build-llvm/CMakeFiles/CMakeOutput.log".
See also "/<<PKGBUILDDIR>>/build-llvm/CMakeFiles/CMakeError.log".
make[1]: *** [debian/rules:310: override_dh_auto_configure] Error 1
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:263: binary] Error 2