User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1b3) Gecko/20090426 Gentoo Firefox/3.1b3 Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1b3) Gecko/20090426 Gentoo Firefox/3.1b3 While building with LDFLAGS="-Wl,--as-needed", the build fails with "undefined reference to `PL_strcat'". Please see the build log at http://bugs.gentoo.org/attachment.cgi?id=189877&action=view and the downstream (Gentoo) bug for the full details. The workaround is a simple append of 'EXTRA_DSO_LDOPTS += -lplc4' to browser/components/build/Makefile.in before building Reproducible: Always

An addition: this happens with 3.5_beta4, and is a regression from 3.1_beta3

The link line already has -L/usr/lib64/nspr -lplds4 -lplc4, but it's just listed before mozreg_s... you just need to reorder http://mxr.mozilla.org/mozilla-central/source/browser/components/build/Makefile.in#80 earlier in the makefile (before the MOZ_COMPONENT_LIBS hunk). This is a regression from http://hg.mozilla.org/mozilla-central/rev/be1b0898ed40 which is bug 477727

(In reply to comment #2) > This is a regression from > http://hg.mozilla.org/mozilla-central/rev/be1b0898ed40 which is bug 477727 hey Vlad, can you have a look at this?

Once again, I'm all for killing libreg :) Something like this should fix it, though.

Checked in.