[riot-commits] [RIOT-OS/RIOT] 6dcd3b: build system: support wrong target triples with LLVM

[Martine Lenders]

  Branch: refs/heads/master
  Home:   https://github.com/RIOT-OS/RIOT
  Commit: 6dcd3bb8ffe7fb9cf09895b6e76675279aad320f
      https://github.com/RIOT-OS/RIOT/commit/6dcd3bb8ffe7fb9cf09895b6e76675279aad320f
  Author: Marian Buschsieweke <marian.buschsieweke at ovgu.de>
  Date:   2021-02-11 (Thu, 11 Feb 2021)

  Changed paths:
    M makefiles/toolchain/llvm.inc.mk

  Log Message:
  -----------
  build system: support wrong target triples with LLVM

clang/LLVM is a bit more finicky with what target triples it accepts compared
to GCC. However, the GCC target triple is needed to properly locate the C
libraries. In case a locally installed GCC toolchain uses a technically not
fully correct target triple, it might be impossible to build with LLVM.

The solution here is to allow specifying a TARGET_ARCH_LLVM target triple
(which defaults to TARGET_ARCH), which is passed to clang. For locating the
C lib, still TARGET_ARCH is used.


  Commit: 2991466cdd0372fd828bd3a1ae422821a2fc9411
      https://github.com/RIOT-OS/RIOT/commit/2991466cdd0372fd828bd3a1ae422821a2fc9411
  Author: Martine Lenders <m.lenders at fu-berlin.de>
  Date:   2021-02-11 (Thu, 11 Feb 2021)

  Changed paths:
    M makefiles/toolchain/llvm.inc.mk

  Log Message:
  -----------
  Merge pull request #15986 from maribu/llvm-target-tripple

build system: support wrong target triples with LLVM


Compare: https://github.com/RIOT-OS/RIOT/compare/efb2adf27ab6...2991466cdd03