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Date: Mon, 1 Sep 1997 11:44:28 -0700 (PDT)
From: Howard Lew <hlew@www2.shoppersnet.com>
To: freebsd-bugs@freebsd.org
Subject: 2.2-970831-RELENG FreeBSD and lpt
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In 2.2-970831-RELENG SNAP

Printing problem with /dev/lpt... It's missing a prototype causing kernel 
compile to give:

../../i386/isa/lpt.c: In function `lptout':
../../i386/isa/lpt.c:597: warning: implicit declaration of function `lptintr'
../../i386/isa/lpt.c: At top level:
../../i386/isa/lpt.c:763: warning: no previous prototype for `lptintr'
../../i386/isa/lpt.c:763: warning: type mismatch with previous external decl
../../i386/isa/lpt.c:597: warning: previous external decl of `lptintr'
../../i386/isa/lpt.c:763: warning: type mismatch with previous implicit
declaration
../../i386/isa/lpt.c:733: warning: previous implicit declaration of `lptintr'
../../i386/isa/lpt.c:763: warning: `lptintr' was previously implicitly 
declared 
to
return `int'

This causes problems printing... I believe the trivial fix is to 
add the prototype 
void lptintr(int);