Re: signames problem

[Peter Stephenson <pws@ibmth.df.unipi.it>]

Bernd Eggink wrote:
> The test in configure:4024 is too weak. I guess it would be better to
> test for a minimum number (e.g., 7) of "#define SIG..."s in each file.

Thanks.  Here's what I came up with based on your suggestion.  Maybe it's
even safer to check for signals we know should be defined, i.e. look for
SIGHUP or SIGKILL, but goodness knows what's out there these days.

--- configure.in.sig	Wed Feb 24 13:46:04 1999
+++ configure.in	Wed Feb 24 15:52:13 1999
@@ -682,6 +682,7 @@
   dnl In case we don't get the stuff from the preprocesor, use the old
   dnl list of standard places.
   sigfile_list="/usr/include/bsd/sys/signal.h
+/usr/include/signum.h
 /usr/include/asm/signum.h
 /usr/include/asm/signal.h
 /usr/include/linux/signal.h
@@ -690,9 +691,13 @@
 fi
 for SIGNAL_H in $sigfile_list
 do
-  test -f $SIGNAL_H && \
-  grep '#[ 	]*define[ 	][ 	]*SIG[0-9A-Z]*[ 	]*[0-9][0-9]*' $SIGNAL_H > /dev/null && \
-  break
+  dnl Try to make sure it doesn't get confused by files that don't
+  dnl have real signal definitions in, but do #define SIG* by counting
+  dnl the number of signals.  Maybe we could even check for e.g. SIGHUP?
+  nsigs=`test -f $SIGNAL_H && \
+  grep '#[ 	]*define[ 	][ 	]*SIG[0-9A-Z]*[ 	]*[0-9][0-9]*' $SIGNAL_H | \
+  wc -l | sed 's/[ 	]//g'`
+  test "x$nsigs" != x && test "$nsigs" -ge 7 && break
 done
 zsh_cv_path_signal_h=$SIGNAL_H
 ])

-- 
Peter Stephenson <pws@ibmth.df.unipi.it>       Tel: +39 050 844536
WWW:  http://www.ifh.de/~pws/
Dipartimento di Fisica, Via Buonarroti 2, 56127 Pisa, Italy