[libc] [llvm] [libc] Make RPC server handling header only (PR #131205)

Sun Mar 16 10:08:38 PDT 2025

mgorny wrote:

This commit broke standalone offload builds:

```
[64/78] /usr/lib/ccache/bin/x86_64-pc-linux-gnu-g++ -DDEBUG_PREFIX=\"PluginInterface\" -DTARGET_NAME=\"PluginInterface\" -I/usr/lib/llvm/21/include -I/var/tmp/portage/llvm-runtimes/offload-21.0.0.9999/work/offload/plugins-nextgen/common/include -I/var/tmp/portage/llvm-runtimes/offload-21.0.0.9999/work/offload_build/include -I/var/tmp/portage/llvm-runtimes/offload-21.0.0.9999/work/offload/include  -O2 -pipe -march=native -std=c++17 -fPIC -fno-exceptions -MD -MT plugins-nextgen/common/CMakeFiles/PluginCommon.dir/src/RPC.cpp.o -MF plugins-nextgen/common/CMakeFiles/PluginCommon.dir/src/RPC.cpp.o.d -o plugins-nextgen/common/CMakeFiles/PluginCommon.dir/src/RPC.cpp.o -c /var/tmp/portage/llvm-runtimes/offload-21.0.0.9999/work/offload/plugins-nextgen/common/src/RPC.cpp
FAILED: plugins-nextgen/common/CMakeFiles/PluginCommon.dir/src/RPC.cpp.o 
/usr/lib/ccache/bin/x86_64-pc-linux-gnu-g++ -DDEBUG_PREFIX=\"PluginInterface\" -DTARGET_NAME=\"PluginInterface\" -I/usr/lib/llvm/21/include -I/var/tmp/portage/llvm-runtimes/offload-21.0.0.9999/work/offload/plugins-nextgen/common/include -I/var/tmp/portage/llvm-runtimes/offload-21.0.0.9999/work/offload_build/include -I/var/tmp/portage/llvm-runtimes/offload-21.0.0.9999/work/offload/include  -O2 -pipe -march=native -std=c++17 -fPIC -fno-exceptions -MD -MT plugins-nextgen/common/CMakeFiles/PluginCommon.dir/src/RPC.cpp.o -MF plugins-nextgen/common/CMakeFiles/PluginCommon.dir/src/RPC.cpp.o.d -o plugins-nextgen/common/CMakeFiles/PluginCommon.dir/src/RPC.cpp.o -c /var/tmp/portage/llvm-runtimes/offload-21.0.0.9999/work/offload/plugins-nextgen/common/src/RPC.cpp
/var/tmp/portage/llvm-runtimes/offload-21.0.0.9999/work/offload/plugins-nextgen/common/src/RPC.cpp:16:10: fatal error: shared/rpc.h: No such file or directory
   16 | #include "shared/rpc.h"
      |          ^~~~~~~~~~~~~~
compilation terminated.
```

Looks like it's missing an include directory.

https://github.com/llvm/llvm-project/pull/131205