2 ms·Many (most) C compilers are 4 pass, but yeah...the old Microsoft C compiler was especially bad.by kjs3 12y agoMany (most) C compilers are 4 pass, but yeah...the old Microsoft C compiler was especially bad.dhimes 12y agoI was using Consulair for the Mac- a very highly rated (and quite good) one. But no match for TP.kjs3 12y agoHa! I was waaay off. The old MS C Compiler for MS-DOS did really, really suck.