When compiling mozilla-firefox-126.96.36.199-r4, it crashes, complaining that it can't find libexpat.so.0. A recompile of the expat package did not solve the problem. I currently have the 2.0.0 expat package installed.
Steps to Reproduce:
1. Upgrade to expat 2.0.0
2. Try to compile mozilla-firefox-188.8.131.52-r4 package
/var/tmp/portage/www-client/mozilla-firefox-184.108.40.206-r4/work/mozilla/config/nsinstall -R -m 755 libxpcom_compat_c.so ../../../dist/bin/components
../../../dist/bin/elf-dynstr-gc: error while loading shared libraries: libexpat.so.0: cannot open shared object file: No such file or directory
You need to revdep-rebuild after upgrading to expat.
*** This bug has been marked as a duplicate of bug 128069 ***