| Issue |
114626
|
| Summary |
clang multiarch is broken (at least on macOS)
|
| Labels |
|
| Assignees |
|
| Reporter |
alecazam
|
So macoOS clang seems to have left out multiarch support for precompiled headers. So I split out our arch specifications as such, and compiled each pch for each arch.
CXXARCH := -arch x86_64 -mavx2 -mf16c -mfma \
-arch arm64
The problem is now I need to pass the pch to the compiles. This requires use of -include-pch like so.
PRECOMPILED_CXXFLAGS += \
-include-pch $(PRECOMPILED_PCH_ARM)\
-include-pch $(PRECOMPILED_PCH_X64)\
But that doesn't work since it tries to link the x64 pch to the .o. So then I try -Xarch
PRECOMPILED_CXXFLAGS += \
-Xarch_arm64 -include-pch $(PRECOMPILED_PCH_ARM)\
-Xarch_x86_64 -include-pch $(PRECOMPILED_PCH_X64)\
That generates the following failure:
invalid Xarch argument: '-Xarch_arm64 -include-pch', options requiring arguments are unsupported
So I have no idea how to fix this. The -Xarch limitation is very limiting.
![]()
_______________________________________________
llvm-bugs mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
