How do I set search paths for TeX and METAFONT?
Our standard TeX and METAFONT programs in /usr/local/bin are based on the Web2C version 6 system, which followed Donald Knuth’s practice at the Stanford TeX Project of having a small number of directories for fonts and macros enumerated in colon-separated directory search paths in the variables BIBINPUTS, DVIPSHEADERS, TEXCONFIG, TEXFONTS, TEXINPUTS, TEXPKS, and VFFONTS. As more developers contributed to the TeX Project, the size of the directory tree grew, and the search paths got rather long: our TEXFONTS path now has more than 25 directories in it.
