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Date:      Fri, 08 Jan 2021 23:31:19 +0000
From:      bugzilla-noreply@freebsd.org
To:        gnome@FreeBSD.org
Subject:   [Bug 252379] Mk/Uses/compiler.mk: remove USE_GCC=yes for compiler:openmp due to libomp.so is part of base since 11.3/12.1
Message-ID:  <bug-252379-6497-C0wUZCpsYT@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-252379-6497@https.bugs.freebsd.org/bugzilla/>
References:  <bug-252379-6497@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D252379

--- Comment #14 from Jason W. Bacon <jwb@freebsd.org> ---
(In reply to Jason W. Bacon from comment #4)

As I suspected, this will cause breakage on FreeBSD < 13 ppc.

Presently a lot of ports have the following hack for ppc because it still u=
ses
gcc 4.2:

# Force newer GCC on platforms using GCC 4.2 as base
.if ${CHOSEN_COMPILER_TYPE} =3D=3D gcc
USE_GCC=3D        yes
.endif

CHOSEN_COMPILER_TYPE is only defined when the port has

USES=3Dcompiler:something

So simply removing compiler:openmp will break a lot of ports for ppc right =
now
with the following error:

make: "/usr/ports/wip/gcta/Makefile" line 29: Malformed conditional
(${CHOSEN_COMPILER_TYPE} =3D=3D gcc && ${COMPILER_VERSION} <=3D 42)
make: Fatal errors encountered -- cannot continue

I think this should be easy to fix by defining CHOSEN_COMPILER_TYPE in the
absence of USES=3Dcompiler:*.

Then we just have to make sure that ports using gcc/gfortran and openmp use=
 gcc
for everything.  Some might try to use clang or clang++ along with gfortran
which as someone mentioned is not tested when openmp is in play.

--=20
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