This hierarchy is the distribution for lcc version 4.2.
lcc version 3.x is described in the book "A Retargetable C Compiler: Design and Implementation" (Addison-Wesley, 1995, ISBN 0-8053-1670-1). There are significant differences between 3.x and 4.x, most notably in the intermediate code. For details, see https://drh.github.io/lcc/documents/interface4.pdf.
VERSION 4.2 IS INCOMPATIBLE WITH EARLIER VERSIONS OF LCC. DO NOT UNLOAD THIS DISTRIBUTION ON TOP OF A 3.X DISTRIBUTION.
LCC is a C89 ("ANSI C") compiler designed to be highly retargetable.
LOG describes the changes since the last release.
CPYRIGHT describes the conditions under you can use, copy, modify, and distribute lcc or works derived from lcc.
doc/install.html is an HTML file that gives a complete description of the distribution and installation instructions.
Chris Fraser / cwf@aya.yale.edu David Hanson / drh@drhanson.net