Subject: weird lossage with xcompile macppc -> sparc
To: None <tech-toolchain@netbsd.org>
From: matthew green <mrg@eterna.com.au>
List: tech-toolchain
Date: 09/21/2002 16:15:02
hi folks.
i'm having a weird problem with bin/sh building cross from macppc
to sparc. i am getting this:
/usr/src/bin/sh/eval.c: In function `evalcommand':
/usr/src/bin/sh/eval.c:641: warning: comparison is always true due to limited range of data type
/usr/src/bin/sh/eval.c:644: warning: comparison is always true due to limited range of data type
because a "signedness" test in mksyntax.c fails somehow:
/* Determine the characteristics of chars. */
c = -1;
if (c <= 0)
sign = 1;
else
sign = 0;
[ ... ]
if (sign)
fprintf(hfile, "#define UPEOF ((char)%d)\n\n", -base);
else
fprintf(hfile, "#define UPEOF ((unsigned char)%d)\n\n", -base);
and UPEOF() is the macro involved above that causes the warning. it
gets defined with a cast to "unsigned char" as sign gets set to 0.
any one have ideas why? this is with fairly recently (<2 day old)
sources...
.mrg.