The updated version of the glossaries package depends on the tracklang package, which is included in dev-texlive/texlive-genericextra starting with dev-texlive/texlive-genericextra-2014. Steps to Reproduce: 1. Install dev-tex/glossaries-4.12 without dev-texlive/texlive-genericextra-2014 2. Create a LaTeX document using the glossaries package 3. Run makeglossaries and pdflatex Error message: ! LaTeX Error: File `tracklang.sty' not found.
Fixed in 4.12-r1.