Hi Matt, On Saturday, 17 July 2021 17:19:46 BST Matthias Hanft wrote: > Hi, > > doing the weekly "emerge --sync" and "emerge -aDuv @world", portage > suddenly asks me to set the "harfbuzz" USE flag for "freetype". The > exact messages are > > --- cut here --- > > emerge: there are no ebuilds built with USE flags to satisfy > ">=media-libs/freetype-2.5.0.1:2=[harfbuzz,png,abi_x86_32(-)?,abi_x86_64(-)? > ,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?,abi_s390 > _32(-)?,abi_s390_64(-)?]". !!! One of the following packages is required to > complete your request: - media-libs/freetype-2.10.4::gentoo (Change USE: > +harfbuzz) > (dependency required by "x11-libs/pango-1.48.7::gentoo" [ebuild]) > (dependency required by "net-analyzer/rrdtool-1.7.2-r100::gentoo[graph]" > [installed]) (dependency required by "net-mail/mailgraph-1.14-r2::gentoo" > [installed]) (dependency required by "@selected" [set]) > (dependency required by "@world" [argument]) > > --- cut here --- > > on my 32-bit Gentoo. On my 64-bit Gentoo, it looks pretty similar: > > --- cut here --- > > The following USE changes are necessary to proceed: > (see "package.use" in the portage(5) man page for more details) > # required by x11-libs/pango-1.48.7::gentoo > # required by net-analyzer/rrdtool-1.7.2-r100::gentoo[graph] > # required by net-mail/mailgraph-1.14-r2::gentoo > # required by @selected > # required by @world (argument) > > >=media-libs/freetype-2.10.4 harfbuzz > > --- cut here --- > > Of course, I just could do that, but "equery u freetype" tells me for > "harfbuzz": "WARNING: may trigger circular dependencies!" > > Some googling showed me that circular dependencies seem to be a very, > very ugly thing which you can't easily get rid of. > > Just turning off all unneeded USE flags isn't easy either - for example, > I'm using mailgraph for graphical display on my website, which needs > rrdtool[graph], which needs pango, which needs freetype... and there > are some more dependencies on *real* used packages. > > How should I proceed, avoiding circular dependencies? > > Thank you in advance, > > -Matt
I had to set USE="harfbuzz" for freetype and yes, you are right, there is a warning there: ~ $ equery u freetype [ Legend : U - final flag setting for installation] [ : I - package is installed with flag ] [ Colors : set, unset ] * Found these USE flags for media-libs/freetype-2.10.4: U I + + X : Add support for X11 - - abi_x86_32 : 32-bit (x86) libraries + + adobe-cff : Use Adobe CFF as default font-renderer - - bindist : Disable ClearType support (see http://freetype.org/ patents.html) - - brotli : Enable brotli decompression support via app-arch/ brotli + + bzip2 : Support bzip2 compressed PCF fonts. + + cleartype_hinting : New bytecode hinting mode for TrueType fonts that activates subpixel hinting (a.k.a. ClearType hinting) by default - - debug : Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see https://wiki.gentoo.org/ wiki/Project:Quality_Assurance/Backtraces - - doc : Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally - - fontforge : Install internal headers required for TrueType debugger in media-gfx/fontforge (built with USE=truetype-debugger) + + harfbuzz : Use media-libs/harfbuzz for auto-hinting OpenType fonts. WARNING: may trigger circular dependencies! + + png : Add support for libpng (PNG images) - - static-libs : Build static versions of dynamic libraries as well - - utils : Install utilities and examples from ft2demos I have not come across any problems on amd64 arch, but have not tried it on a 32bit system to know if it will cause any problems.
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