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[Linrad] Linrad+ubuntu 9.10
- Subject: [Linrad] Linrad+ubuntu 9.10
- From: Leif Asbrink <sm5bsz.com; leif@xxxxxxxxxxxxxxxx>
- Date: Fri, 30 Oct 2009 00:08:38 +0100
I have received this bug report:
> yesterday I compiled xlinrad successfully on a 9.04 machine. Today I
> tried it on 9.10 with no success. Do you have any idea what to do i.o.
> to avoid those messages:
> detlef@xxxxxxxxx:~/linrad$ make xlinrad
> gcc -D_FILE_OFFSET_BITS=64 lxsys.c -g -O -DOSNUM=1 -W -Wall -Wimplicit
> -Wreturn-type -Wformat -m32 -Wunused -Wcomment -Wchar-subscripts
> -Wshadow -Wuninitialized -Wparentheses -Wstrict-prototypes -Werror
> -ffast-math -Wundef -fomit-frame-pointer -c -o lxsys.ol
> cc1: warnings being treated as errors
> In file included from /usr/include/stdio.h:910,
> from globdef.h:90,
> from lxsys.c:23:
> In function âsprintfâ,
> inlined from âlir_open_serportâ at lxsys.c:369:
> /usr/include/bits/stdio2.h:34: error: call to __builtin___sprintf_chk
> will always overflow destination buffer
> make: *** [lxsys.ol] Fehler 1
The gcc compiler is changed now and then and it always becomes better.
I have not yet tried Ubuntu 9.10 myself, but obviously the latest
gcc (not yet included in Debian testing) has better error checking.
There is a serious error in Linrad. The array declared on line 22 in
lxsys.c like this:
is used in line 369 like this:
That will overwrite something else and it could be a disaster.
This variable is ONLY used if you are using (w)users_hwaredriver.c
to communicate with your transceiver.
The problem can be fixed like this:
(and a corresponding change for BSD on line 32)
Leif / SM5BSZ
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