[Bug 2016471] Re: eztrace FTBFS with LTO

[Steve Langasek]

> Applying the "-Wl,-Bsymbolic-functions" fix to llvm-toolchain
> will most probably lead to a bigger discussion, as this is an
> optimization Ubuntu enabled on purpose a long time ago,
> and disabling it in a core-package like the LLVM toolchain
> might be a high impact change.

In fact, there are almost no reverse-dependencies of libomp in Ubuntu.
I've uploaded a patch that disables -Bsymbolic-functions for libomp
only, which should hopefully fix the eztrace build.

** Changed in: llvm-toolchain-15 (Ubuntu Mantic)
       Status: New => Fix Committed

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Title:
  eztrace FTBFS with LTO

Status in eztrace package in Ubuntu:
  In Progress
Status in llvm-defaults package in Ubuntu:
  New
Status in llvm-toolchain-15 package in Ubuntu:
  Fix Committed
Status in lto-disabled-list package in Ubuntu:
  Fix Released
Status in eztrace source package in Mantic:
  In Progress
Status in llvm-defaults source package in Mantic:
  New
Status in llvm-toolchain-15 source package in Mantic:
  Fix Committed
Status in lto-disabled-list source package in Mantic:
  Fix Released

Bug description:
  eztrace 2.0+repack-11 FTBFS due to mpich test failure when built with
  LTO enabled.

  The following tests FAILED:
  	  3 - mpi_tests (Failed)
  	  5 - memory_tests (Failed)
  	 10 - openmp_tests (Failed)
  	 12 - pthread_tests (Failed)
  	 15 - posixio_tests (Failed)
  Errors while running CTest
  make[2]: *** [Makefile:74: test] Error 8
  make[2]: Leaving directory '/<<PKGBUILDDIR>>/build-mpich'

  The mpich tests pass after disaling LTO, however then the ompt tests
  still fail.

  The following tests FAILED:
  	  5 - ompt_tests (Failed)
  Errors while running CTest
  make[2]: *** [Makefile:74: test] Error 8
  make[2]: Leaving directory '/<<PKGBUILDDIR>>/build-ompt'

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