Date: Sat, 1 Sep 2001 14:29:00 -0700 (PDT) From: Archie Cobbs <archie@dellroad.org> To: freebsd-questions@freebsd.org Subject: gcc -D flag Message-ID: <200109012129.f81LT0M54076@arch20m.dellroad.org>
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Can someone tell me what I'm missing here?
$ cat > foo.c
int main(int ac, char **av) { return 0; }
#if FOO == BAR
#error
#endif
$ cc -o foo -Wall -DFOO=BAR foo.c
foo.c:3: #error
$ cc -o foo -Wall foo.c
foo.c:3: #error
$ cc -o foo -Wall -DFOO=NOTBAR foo.c
foo.c:3: #error
Seems like #if FOO == BAR is being evalutated as true no matter what.
This is with FreeBSD 4.3-REL, gcc 2.95.3.
-Archie
__________________________________________________________________________
Archie Cobbs * Packet Design * http://www.packetdesign.com
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