https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96718
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-10 branch has been updated by Jonathan Wakely <r...@gcc.gnu.org>: https://gcc.gnu.org/g:098a67ff74cca5f17ed630d870adf364c47031f6 commit r10-8652-g098a67ff74cca5f17ed630d870adf364c47031f6 Author: Jonathan Wakely <jwak...@redhat.com> Date: Fri Aug 21 12:01:05 2020 +0100 libstdc++: Skip PSTL tests when installed TBB is too old [PR 96718] These tests do not actually require TBB, because they only inspect the feature test macros present in the headers. However, if TBB is installed then its headers will be included, and the version will be checked. If the version is too old, compilation fails due to a #error directive. This change disables the tests if TBB is not present, so that we skip them instead of failing. libstdc++-v3/ChangeLog: PR libstdc++/96718 * testsuite/25_algorithms/pstl/feature_test-2.cc: Require tbb-backend effective target. * testsuite/25_algorithms/pstl/feature_test-3.cc: Likewise. * testsuite/25_algorithms/pstl/feature_test-5.cc: Likewise. * testsuite/25_algorithms/pstl/feature_test.cc: Likewise. (cherry picked from commit 988fb2f597d67cdf3603654372c020c28448441f)
