operating system are left very -- minimal.
All this is experimental. If you don't know what to do with microperl
-you probably shouldn't.
+you probably shouldn't. Do not report bugs in microperl; fix the bugs.
+
+We assume ANSI C89 plus the following:
+- <stdlib.h>
+- rename()
+- opendir(), readdir(), closedir() (via dirent.h)
+- memchr (via string.h)
+- (a safe) putenv() (via stdlib.h)
+- strtoul() (via stdlib.h)
+(grep for 'define' in uconfig.sh.)
+Also, Perl times() is defined to always return zeroes.
+
+If you are still reading this and you are itching to try out microperl:
+
+ make -f Makefile.micro
+
+