This one was reported because its not clear to me why its being cast to (void).
The best I can tell, its programmer expediency. If the first write fails, why is
it believed the second, third or fourth will succeed?

Also, this is occurring in a signal handler, so it seems like there's a
potential to make a bad problem worse.

/usr/local/bin/scan-build/ccc-analyzer -DHAVE_CONFIG_H -I. -I.. -I../gl
-I../intl -DLOCALEDIR=\"/home/jwalton/gpg-analyze/share/locale\"
-DGNUPG_BINDIR="\"/home/jwalton/gpg-analyze/bin\""
-DGNUPG_LIBEXECDIR="\"/home/jwalton/gpg-analyze/libexec\""
-DGNUPG_LIBDIR="\"/home/jwalton/gpg-analyze/lib/gnupg\""
-DGNUPG_DATADIR="\"/home/jwalton/gpg-analyze/share/gnupg\""
-DGNUPG_SYSCONFDIR="\"/home/jwalton/gpg-analyze/etc/gnupg\""
-DGNUPG_LOCALSTATEDIR="\"/home/jwalton/gpg-analyze/var\""
-I/home/jwalton/gpg-analyze/include -I/usr/local/include
-I/home/jwalton/gpg-analyze/include -I/home/jwalton/gpg-analyze/include
-I/home/jwalton/gpg-analyze/include -DWITHOUT_NPTH=1 -g3 -O1 -Wall
-Wno-pointer-sign -Wpointer-arith -MT libcommon_a-signal.o -MD -MP -MF
.deps/libcommon_a-signal.Tpo -c -o libcommon_a-signal.o `test -f 'signal.c' ||
echo './'`signal.c

signal.c: In function ‘got_fatal_signal’:
signal.c:111:3: warning: ignoring return value of ‘write’, declared with
attribute warn_unused_result [-Wunused-result]

(void)write (2, "\n", 1 );
^

signal.c:114:5: warning: ignoring return value of ‘write’, declared with
attribute warn_unused_result [-Wunused-result]

(void)write(2, s, strlen (s));
^

signal.c:115:3: warning: ignoring return value of ‘write’, declared with
attribute warn_unused_result [-Wunused-result]

(void)write (2, ": signal ", 9 );
^

signal.c:118:5: warning: ignoring return value of ‘write’, declared with
attribute warn_unused_result [-Wunused-result]

(void) write (2, s, strlen(s) );
^

signal.c:128:9: warning: ignoring return value of ‘write’, declared with
attribute warn_unused_result [-Wunused-result]

(void)write (2, "?", 1);
^

signal.c:137:19: warning: ignoring return value of ‘write’, declared with
attribute warn_unused_result [-Wunused-result]

(void)write (2, "0123456789"+(value/i), 1);
^

signal.c:145:3: warning: ignoring return value of ‘write’, declared with
attribute warn_unused_result [-Wunused-result]

(void)write (2, " caught ... exiting\n", 20);
^