Re: boost-libs on macOS Ventura (13.x)

[Adam <adam%netbsd.org@localhost>]

> devel/boost-libs fails to build with the error below.  What I've managed
> to figure out so far is that "-x c" is incompatible with "-std=c++14" on
> recent versions of clang (macOS Ventura aarch64, macOS Monterey x86,
> FreeBSD 13).  Odd thing is, I'm not seeing -std=c++14 in the compile
> command shown.  Any suggestions would be appreciated...
> 
> ===
> 
> ...updating 15 targets...
> clang-darwin.compile.c
> bin.v2/libs/container/build/clang-darwin-14/release/pch-off/threading-multi/visibility-hidden/alloc_lib.o
> error: invalid argument '-std=c++14' not allowed with 'C'
> 
>    "clang++" -x c -fPIC -O3 -Wall -fvisibility=hidden -Wno-inline
> --target=arm64-apple-darwin  -DBOOST_ALL_NO_LIB=1
> -DBOOST_CONTAINER_DYN_LINK=1 -DNDEBUG -I"."  -c -o
> "bin.v2/libs/container/build/clang-darwin-14/release/pch-off/threading-multi/visibility-hidden/alloc_lib.o"
> "libs/container/src/alloc_lib.c"
> 
> ...failed clang-darwin.compile.c
> bin.v2/libs/container/build/clang-darwin-14/release/pch-off/threading-multi/visibility-hidden/alloc_lib.o...
> ...skipped
> <pbin.v2/libs/container/build/clang-darwin-14/release/pch-off/threading-multi/visibility-hidden>libboost_container.dylib
> for lack of
> <pbin.v2/libs/container/build/clang-darwin-14/release/pch-off/threading-multi/visibility-hidden>alloc_lib.o...
> 

FYI, I can't reproduce this on macOS 13.4, Xcode 14.3.

Adm