#if bug in 'lint'

[utzoo!decvax!ucbvax!unix-wizards]

>From pur-ee!bruner at Berkeley Tue Sep 29 16:34:48 1981
I have also had problems with "#if" statements when running "lint".
The problem appears to be a vanilla 7 bug in the C preprocessor.

It appears that "cpp" does not properly handle comments within
conditionals.  For instance, in the following code

	#define JUNK 1 /* comment */
	#if JUNK == 1
	--blah--
	#endif

the "#if JUNK == 1" is expanded to "#if 1 /* comment */ == 1",
and the preprocessor apparently doesn't understand the embedded comment.
Comments are only saved if the "-C" flag is specified when calling
the preprocessor.  Since "cc" doesn't specify "-C" and "lint" does
(to be able to read its directives from the source), the problem only
shows up when "lint" is run.

--John Bruner