harfbuzz build warnings on 10.6.8: Warning: HarfBuzz: hb_coretext_face_create: argument cg_font: Unresolved type: 'CGFontRef'

[barracuda156]

Not sure how concerning are these, but:

libtool: link: /opt/local/bin/gcc-mp-13 -o /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_harfbuzz/harfbuzz/work/harfbuzz-8.4.0/src/tmp-introspectfut9hj1o/.libs/HarfBuzz-0.0 -I/opt/local/include -Os -DHB_NO_PRAGMA_GCC_DIAGNOSTIC_ERROR -pipe -isysroot/ -arch ppc /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_harfbuzz/harfbuzz/work/harfbuzz-8.4.0/src/tmp-introspectfut9hj1o/HarfBuzz-0.0.o -Wl,-headerpad_max_install_names -Wl,-syslibroot -Wl,/ -arch ppc  -L. ./.libs/libharfbuzz.dylib -L/opt/local/lib ./.libs/libharfbuzz-gobject.dylib /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_harfbuzz/harfbuzz/work/harfbuzz-8.4.0/src/.libs/libharfbuzz.dylib -lm /opt/local/lib/libfreetype.dylib /opt/local/lib/libgraphite2.dylib -lgio-2.0 -lgobject-2.0 -lgmodule-2.0 -lglib-2.0 -lintl -framework ApplicationServices -pthread
hb-coretext.cc:283: Warning: HarfBuzz: hb_coretext_face_create: argument cg_font: Unresolved type: 'CGFontRef'
hb-coretext.cc:385: Warning: HarfBuzz: hb_coretext_font_create: argument ct_font: Unresolved type: 'CTFontRef'
hb-coretext.cc:307: Warning: HarfBuzz: hb_coretext_face_get_cg_font: return value: Unresolved type: 'CGFontRef'
hb-coretext.cc:423: Warning: HarfBuzz: hb_coretext_font_get_ct_font: return value: Unresolved type: 'CTFontRef'

To be clear, while in Rosetta, this is on 10.6.8 (so a standard 10.6 SDK, not a pre-release one).

[ryandesign (Ryan Carsten Schmidt)]

Hm. CGFontRef has existed since Mac OS X 10.0 and CTFontRef since 10.5 so it should be there.

[ryandesign (Ryan Carsten Schmidt)]

According to ​https://github.com/harfbuzz/harfbuzz/issues/3634:

This output is unfortunately emitted by the g-ir-scanner program, and I don't think it's possible to do anything about it.

So I'll close this as not our problem and you can take it up with the developers of Harfbuzz if you're still concerned.