llvm18: new recipe

[davidkaroly]

Successful build on x86_64 and the resulting toolchain can build simple C/C++ examples.
Haven't tried it on 32-bit yet.Successful build and smoke test on x86 secondary arch.

[korli]

It would nice to drop $secondaryArchSuffix on every cmd: provides. It's very inconvenient to have to specify cmd:clang_x86

[davidkaroly]

It would nice to drop $secondaryArchSuffix on every cmd: provides. It's very inconvenient to have to specify cmd:clang_x86

Not quite sure... the $secondaryArchSuffix'es were introduced in #9593 to fix a build issue for qt on 32-bit (see #9562)
This will need some more investigation.

[korli]

it seems clang since at least version 16 generates DT_RUNPATH instead of DT_RPATH.
I had to use export LDFLAGS="-Wl,--disable-new-dtags" to have DT_RPATH generated.

[davidkaroly]

updated patch:

• uplift to llvm-18.1.2
• add lld to clang package's dependencies

[davidkaroly]

it seems clang since at least version 16 generates DT_RUNPATH instead of DT_RPATH. I had to use export LDFLAGS="-Wl,--disable-new-dtags" to have DT_RPATH generated.

not sure about this one, I see some commits in haiku repo related to rpath and runpath, not sure if anything is needed in this recipe?

[korli]

not sure about this one, I see some commits in haiku repo related to rpath and runpath, not sure if anything is needed in this recipe?

For r1beta4 some workaround would be needed.

[davidkaroly]

It would nice to drop $secondaryArchSuffix on every cmd: provides. It's very inconvenient to have to specify cmd:clang_x86

Not quite sure... the $secondaryArchSuffix'es were introduced in #9593 to fix a build issue for qt on 32-bit (see #9562) This will need some more investigation.

actually we can override CMAKE_INSTALL_BINDIR, so far the results are promising. the binaries are installed in bin/ and this time the paths in LLVMExports-release.cmake also seem to line up correctly so we should be able to avoid the issue seen in #9562

[Begasus]

I haven't checked this yet, but pushed an update for clazy yesterday, on 64bit the build went fine but for 32bit it failed, maybe related to the comments by @korli ?

CMake Error at cmake/FindLLVM.cmake:125 (string):
 string sub-command REPLACE requires at least four arguments.
Call Stack (most recent call first):
 cmake/FindClang.cmake:46 (find_package)
 CMakeLists.txt:29 (find_package)

https://build.haiku-os.org/buildmaster/master/x86_gcc2/logviewer.html?buildruns/6154/builds/83288.log