[PATCH] D123498: [clang] Adding Platform/Architecture Specific Resource Header Installation Targets

[Shubham Sandeep Rastogi via Phabricator via cfe-commits]

rastogishubham added a comment.

Hi, this patch causes an issue with the CMake Xcode build configuration, if I try to use xcode as the generator with CMake, using the build command:

xcrun cmake -G Xcode -DCMAKE_BUILD_TYPE:STRING=RelWithDebInfo -DLLVM_ENABLE_ASSERTIONS:BOOL=TRUE -DCMAKE_C_COMPILER=/usr/bin/clang -DCMAKE_CXX_COMPILER=/usr/bin/clang++ -DLLVM_ENABLE_PROJECTS='clang;' -DCMAKE_IGNORE_PATH="/usr/lib;/usr/local/lib;/lib" -DLLVM_TARGETS_TO_BUILD="X86;ARM;AArch64" ../llvm

I get:

CMake Error in /Users/shubhamrastogi/Development/llvm-project-cas/llvm-project/clang/lib/Headers/CMakeLists.txt:

  The custom command generating
  
    /Users/shubhamrastogi/Development/llvm-project-cas/llvm-project/build/$(CONFIGURATION)$(EFFECTIVE_PLATFORM_NAME)/lib/clang/15.0.0/include/float.h
  
  is attached to multiple targets:
  
    x86-resource-headers
    windows-resource-headers
    webassembly-resource-headers
    systemz-resource-headers
    mips-resource-headers
    arm-resource-headers
    cuda-resource-headers
    riscv-resource-headers
    ppc-resource-headers
    opencl-resource-headers
    aarch64-resource-headers
    hip-resource-headers
    ve-resource-headers
    hexagon-resource-headers
    clang-resource-headers
  
  but none of these is a common dependency of the other(s).  This is not
  allowed by the Xcode "new build system".

CMake Error in /Users/shubhamrastogi/Development/llvm-project-cas/llvm-project/third-party/benchmark/CMakeLists.txt:

  The custom command generating
  
    /Users/shubhamrastogi/Development/llvm-project-cas/llvm-project/build/$(CONFIGURATION)$(EFFECTIVE_PLATFORM_NAME)/lib/clang/15.0.0/include/float.h
  
  is attached to multiple targets:
  
    x86-resource-headers
    windows-resource-headers
    webassembly-resource-headers
    systemz-resource-headers
    mips-resource-headers
    arm-resource-headers
    cuda-resource-headers
    riscv-resource-headers
    ppc-resource-headers
    opencl-resource-headers
    aarch64-resource-headers
    hip-resource-headers
    ve-resource-headers
    hexagon-resource-headers
    clang-resource-headers
  
  but none of these is a common dependency of the other(s).  This is not
  allowed by the Xcode "new build system".

I used git bisect to figure this out, is there some solution to this?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D123498/new/

https://reviews.llvm.org/D123498