[gentoo-user] librsvg fails to install

[Philip Webb <purslow@ca.inter.net>]

 /virtual/rust  has been masked & I've been updating pkgs which require it.
One of them is  /gnome-base/librsvg , but when I try to update it, I get :

warning: `librsvg` (lib) generated 2 warnings
     Running `/opt/rust-bin-1.81.0/bin/rustc --crate-name librsvg_c --edition=2021 librsvg-c/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type staticlib --crate-type rlib --emit=dep-info,link -C opt-level=3 -C embed-bitcode=no --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values())' -C metadata=018372775a875011 -C extra-filename=-018372775a875011 --out-dir /var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/work/librsvg-2.57.3-abi_x86_64.amd64/target/release/deps -C strip=debuginfo -L dependency=/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/work/librsvg-2.57.3-abi_x86_64.amd64/target/release/deps --extern cairo=/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/work/librsvg-2.57.3-abi_x86_64.amd64/target/release/deps/libcairo-74c8e98220e44ce1.rlib --extern cast=/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/work/librsvg-2.57.3-abi_x86_64.amd64/target/release/deps/libcast-e45a40deb4d6a930.rlib --extern float_cmp=/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/work/librsvg-2.57.3-abi_x86_64.amd64/target/release/deps/libfloat_cmp-f9ce5f0862003ced.rlib --extern gdk_pixbuf=/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/work/librsvg-2.57.3-abi_x86_64.amd64/target/release/deps/libgdk_pixbuf-850fc7433fb9b0a2.rlib --extern gio=/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/work/librsvg-2.57.3-abi_x86_64.amd64/target/release/deps/libgio-9e0d5c32aa35ed9d.rlib --extern glib=/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/work/librsvg-2.57.3-abi_x86_64.amd64/target/release/deps/libglib-0f57014eab0d5caf.rlib --extern libc=/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/work/librsvg-2.57.3-abi_x86_64.amd64/target/release/deps/liblibc-20f3a42f5c22353b.rlib --extern rsvg=/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/work/librsvg-2.57.3-abi_x86_64.amd64/target/release/deps/librsvg-57cca2f755a9860c.rlib --extern once_cell=/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/work/librsvg-2.57.3-abi_x86_64.amd64/target/release/deps/libonce_cell-e2f94c3c3b8a4a6d.rlib --extern url=/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/work/librsvg-2.57.3-abi_x86_64.amd64/target/release/deps/liburl-b90525cf40d14875.rlib`
    Finished `release` profile [optimized] target(s) in 37.77s
libtool: link: x86_64-pc-linux-gnu-ar cr .libs/librsvg_c_api.a .libs/_rsvg_dummy.o 
libtool: link: x86_64-pc-linux-gnu-ranlib .libs/librsvg_c_api.a
libtool: link: ( cd ".libs" && rm -f "librsvg_c_api.la" && ln -s "../librsvg_c_api.la" "librsvg_c_api.la" )
make[2]: Leaving directory '/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/work/librsvg-2.57.3-abi_x86_64.amd64'
make[1]: *** [Makefile:1159: all-recursive] Error 1
make[1]: Leaving directory '/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/work/librsvg-2.57.3-abi_x86_64.amd64'
make: *** [Makefile:794: all] Error 2
 * ERROR: gnome-base/librsvg-2.57.3-r2::gentoo failed (compile phase):
 *   emake failed
 * 
 * If you need support, post the output of `emerge --info '=gnome-base/librsvg-2.57.3-r2::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=gnome-base/librsvg-2.57.3-r2::gentoo'`.
 * The complete build log is located at '/var/log/emerge-logs/gnome-base:librsvg-2.57.3-r2:20241117-062927.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/temp/environment'.
 * Working directory: '/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/work/librsvg-2.57.3-abi_x86_64.amd64'
 * S: '/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/work/librsvg-2.57.3'
/var/tmp/portage/portage/gnome-base/librsvg-2.57.3-r2/temp/environment: line 117: warning: setlocale: LC_TIME: cannot change locale (en_SE.UTF-8): No such file or directory

>>> Failed to emerge gnome-base/librsvg-2.57.3-r2, Log file:
>>>  '/var/log/emerge-logs/gnome-base:librsvg-2.57.3-r2:20241117-062927.log'

--- end of error msg ---

I've searched the bug list for 'librsvg', but nothing seems relevant.
Can anyone suggest a solution ? -- I can post more info, if needed.

-- 
========================,,============================================
SUPPORT     ___________//___,   Philip Webb
ELECTRIC   /] [] [] [] [] []|   Cities Centre, University of Toronto
TRANSIT    `-O----------O---'   purslowatcadotinterdotnet