The syntax used for initializing the AFMscm arrays in the PostScript font .h files (mozilla/gfx/src/ps/Helvetica.h, etc) is wrong. The initializer for each element of the array (each character) should be enclosed in its own set of curly braces. That is to say, it currently looks like: AFMscm AFMHelveticaChars[] = { 32, 278.000000, 0.000000, 0.000000, 0.000000, 0.000000, 0.000000, 0.000000, 0.000000, 33, 278.000000, 0.000000, ... while it should look like: AFMscm AFMHelveticaChars[] = { {32, 278.000000, 0.000000, 0.000000, 0.000000, 0.000000, 0.000000, 0.000000, 0.000000}, {33, 278.000000, 0.000000, ... Egcs issues a warning for *each* array element that isn't bracketed properly, with the result that the compilation output contains over three thousand warnings. This is by far the largest component of the build log on machines with this compiler. (See "View Full Log" on Linux clobber builds on Tinderbox.) Since, according to a comment at the top of the header files, the files were generated automatically by AFMGEN.EXE, fixing this problem should just be a matter of fixing that program and re-generating the files. Does that program live anywhere in the mozilla source tree? And where are the source files?