*** compiled on tc-9, otherwise firefox tabs crash ***

tce-load -i compiletc libpng-dev

wget https://downloads.sourceforge.net/freetype/freetype-2.11.1.tar.xz

cd freetype-2.11.1

sed -ri "s:.*(AUX_MODULES.*valid):\1:" modules.cfg

sed -r "s:.*(#.*SUBPIXEL_RENDERING) .*:\1:" -i include/freetype/config/ftoption.h

CC="gcc -flto -march=i486 -mtune=i686 -Os -pipe" CXX="g++ -flto -march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --localstatedir=/var --disable-static --enable-freetype-config --with-harfbuzz=no --with-bzip2=no

find . -name unix-cc.mk -type f -exec sed -i 's/-g -O2//g' {} \;

make [0m 25.09s]
sudo make install

$ firefox [96.0.1]
Gah. Your tab just crashed
ATTENTION: default value of option mesa_glthread overridden by environment.
[GFX1]: no fonts - init: 1 fonts: 16 loader: 0

Library configuration:
  external zlib: yes (pkg-config)
  bzip2:         no
  libpng:        yes (pkg-config)
  harfbuzz:      no
  brotli:        no
  pthread:       yes