Diffusion FreeBSD ports repository b16813c9c2bc

graphics/rawtherapee: Add GCC (14) build option, clean up
b16813c9c2bc
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Description

graphics/rawtherapee: Add GCC (14) build option, clean up

Clear the way for making GCC 15 the default GCC version for ports
(through USE_GCC=yes), and set USE_GCC=14 for this port.

GCC 15 and libc++ aren't compatible today because our (base) libc++'s
header files around C++ type traits are rejected by GCC 15, which wants
us to use library traits instead of (new) trait built-ins such as __decay
on function signatures. This isn't trivial to fix, so use the version
pin to GCC 14 so that everyone else can benefit from 15.

(Using libstdc++ with GCC instead would require the C++ libraries that
expose C++ ABIs in the ports tree, Exiv2, Glib-derivatives be recompiled
in a libstdc++ flavour and possibly be duplicated in a separate install
path. Let's not go to these double efforts yet.)

WARNING: on FreeBSD 15.0 amd64, clang-compiled rawtherapee requires twice as much CPU time on a certain test file batch conversion set than the GCC-compiled rawtherapee, so if you can, leave the GCC option on.

While here, clean up the Makefile a bit.

NOTE: the clang default build needs options tweaked a bit differently, and since the base compiler does not look into ${LOCALBASE}/include and ${LOCALBASE}/lib by default, we need to patch the rtengine/LibRaw.cmake wrapper to pass down proper -I and -L flags to libraw's autoconf/automake/libtool rig; we obtain them through pkg-config because cmake, although it already knows where to look, does not expose them through variables, as of 2026-02-22's ports cmake version.

PR: 292692 (making GCC 15 default version)
PR: 293329 (rawtherapee)
Reported by: salvadore@
Pull Request: https://github.com/freebsd/freebsd-ports/pull/504