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[0/4] llvm/clang: fix some syntax issues in llvm-project-source

Message ID 20260622132021.37598-1-joaomarcos.costa@bootlin.com
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Series llvm/clang: fix some syntax issues in llvm-project-source | expand

Message

João Marcos Costa June 22, 2026, 1:20 p.m. UTC 
Hello,

I faced some strange build issues when switching from one distro to another
(i.e. DISTRO="poky" to DISTRO="foobar"), even after adding "foobar"
("foobar:foobar" actually) to CLANG_EXTRA_OE_DISTRO. I started investigating
what was wrong, and I believe the order of pathes in this series reflects pretty
well what specific issue I stumbled upon and what was the next one, on and on.

The error message was:

/src/build/tmp/work/riscv64imafdc-foobar-linux/libcxx/22.1.3/recipe-sysroot-native/usr/bin/riscv64-foobar-linux/riscv64-foobar-linux-ld: cannot find crtbeginS.o: No such file or directory
/src/build/tmp/work/riscv64imafdc-foobar-linux/libcxx/22.1.3/recipe-sysroot-native/usr/bin/riscv64-foobar-linux/riscv64-foobar-linux-ld: cannot find -lstdc++: No such file or directory
/src/build/tmp/work/riscv64imafdc-foobar-linux/libcxx/22.1.3/recipe-sysroot-native/usr/bin/riscv64-foobar-linux/riscv64-foobar-linux-ld: cannot find -lgcc: No such file or directory
riscv64-foobar-linux-clang++: error: linker command failed with exit code 1 (use -v to see invocation)

As far as I understand, this is precisely what do_preconfigure (+ some patches)
is supposed to handle, so at first it looked like a regression, but it seems the
error only reproduces when switching distros.

For some context, I was building something with
PREFERRED_TOOLCHAIN_TARGET="clang", using wrynose branch. If I use the custom
distro from the beginning (so no switching), everything works fine (as expected).

Best regards,

João Marcos Costa (4):
  llvm-project-source.inc: fix string replacements in do_preconfigure
  llvm-project-source.inc: fix end of line in triple variable
  clang/llvm: add missing instance of Distro class in Linux.cpp
  llvm-project-source.inc: add vardeps to do_preconfigure

 ...istro-instance-to-getMultiarchTriple.patch | 35 +++++++++++++++++++
 meta/recipes-devtools/clang/common.inc        |  1 +
 .../clang/llvm-project-source.inc             |  7 ++--
 3 files changed, 40 insertions(+), 3 deletions(-)
 create mode 100644 meta/recipes-devtools/clang/clang/0001-llvm-clang-Add-Distro-instance-to-getMultiarchTriple.patch