lldb-9.0 fails to install

[clintolsen (Clint Olsen)]

I'm sure there's something trivially wrong. It fails out of the gate with a cmake error:

Checking whether the ASM compiler is GNU using "--version" did not match "(GNU assembler)|(GCC)|(Free Software Foundation)":
Apple clang version 14.0.0 (clang-1400.0.29.202)
Target: arm64-apple-darwin21.6.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin
Determining if the include file link.h exists failed with the following output:
Change Dir: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-9.0/lldb-9.0/work/build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/make -f Makefile cmTC_3c33f/fast && /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/cmTC_3c33f.dir/build.make CMakeFiles/cmTC_3c33f.dir/build
Building C object CMakeFiles/cmTC_3c33f.dir/CheckIncludeFile.c.o
/usr/bin/clang   -pipe -Os -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk -mmacosx-version-min=12.0 -MD -MT CMakeFiles/cmTC_3c33f.dir/CheckIncludeFile.c.o -MF CMakeFiles/cmTC_3c33f.dir/CheckIncludeFile.c.o.d -o CMakeFiles/cmTC_3c33f.dir/CheckIncludeFile.c.o -c /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-9.0/lldb-9.0/work/build/CMakeFiles/CMakeTmp/CheckIncludeFile.c
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-9.0/lldb-9.0/work/build/CMakeFiles/CMakeTmp/CheckIncludeFile.c:1:10: fatal error: 'link.h' file not found
#include <link.h>
         ^~~~~~~~
1 error generated.
make[1]: *** [CMakeFiles/cmTC_3c33f.dir/CheckIncludeFile.c.o] Error 1
make: *** [cmTC_3c33f/fast] Error 2

[ryandesign (Ryan Carsten Schmidt)]

Please attach the main.log file.

[clintolsen (Clint Olsen)]

main.log

[ryandesign (Ryan Carsten Schmidt)]

Ok so from the log the real error is:

:info:configure -- Found PythonInterp: /usr/bin/python2.7 
:info:configure CMake Error at CMakeLists.txt:653 (if):
:info:configure   if given arguments:
:info:configure     "VERSION_LESS" "2.7"
:info:configure   Unknown arguments specified
:info:configure -- Configuring incomplete, errors occurred!

This was supposed to have been fixed already 2 months ago (see #66265) but the fix was erroneously applied only to macOS 13 and later, whereas the issue actually affects macOS 12.3 and later, so the llvm ports need to apply the fix also on macOS 12.

[ryandesign (Ryan Carsten Schmidt)]

In 1614a4ccbedef5cd9d4fe4242734c0eba1a0577e/macports-ports (master):

llvm*: Don't use Apple python 2 on macOS 12

Apple python 2 is not present on macOS 12.3 and later

Closes: #66974
See: #66265