The C compiler "/usr/bin/clang" is not able to compile a simple test program.

[conradwt (Conrad Taylor)]

I'm seeing folowing issue when I attempt to upgrade libomp:

:info:configure CMake Error at /opt/local/share/cmake-3.11/Modules/CMakeTestCCompiler.cmake:52 (message):
:info:configure   The C compiler
:info:configure     "/usr/bin/clang"
:info:configure   is not able to compile a simple test program.
:info:configure   It fails with the following output:
:info:configure     Change Dir: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libomp/libomp/work/build-i386/CMakeFiles/CMakeTmp

The above represents the first issue that I'm seeing and I also noticed other potential issues. Please see attached file for further details.

[conradwt (Conrad Taylor)]

libomp-main.log

[ryandesign (Ryan Carsten Schmidt)]

We can't discuss developer or beta versions of macOS here; consult your NDA. See wiki:FAQ#prerelease.

[mamoll (Mark Moll)]

Now that Mojave is released, the libomp port can be installed like so:

sudo port install libomp -universal

[eborisch (Eric A. Borisch)]

Soo... perhaps +universal needs to be an across-the-board no-op on Mojave?

[pmetzger (Perry E. Metzger)]

Eric, for the moment, perhaps you should bring up this error on the developers list? It seems very bad.

[eborisch (Eric A. Borisch)]

See #57133 (Don't offer universal variant when multiple architectures aren't supported)

[eborisch (Eric A. Borisch)]

See also ​https://github.com/macports/macports-ports/pull/2661

[eborisch (Eric A. Borisch)]

Committed (hopefully) a fix: ​https://github.com/macports/macports-ports/commit/06df52a7fda865f033c65f3923ea4c74b51be1a8

Could some Mojave users could please update, test, and report back? It's intended to drop the universal variant from existence on Mojave.

[pmetzger (Perry E. Metzger)]

It seems to build now under Mojave. I'd argue we should temporarily turn off universal for Mojave entirely. (I mean globally, across all ports.)

[kencu (Ken)]

There is already a separate initiative going on for that 57133 and <​https://github.com/macports/macports-base/pull/107>

[eborisch (Eric A. Borisch)]

Fixed for libomp; closing. Follow the -base progress on the ticket / pull listed above.