external/bsd/am-utils/dist/m4/autopat

   1 #!/bin/bash -norc
   2 # find patterns of cache entries to automatically remove from config.cache
   3 # Used by am-utils developers.
   4 # Erez Zadok <ezk AT cs.columbia.edu>
   5 #set -x
   6
   7 macdir="../m4/macros"
   8
   9 # find the right directory
  10 if [ ! -d $macdir ]; then
  11     echo "Could not find $macdir directory."
  12     exit 2
  13 fi
  14
  15 # skip if no config.cache file
  16 if [ ! -f config.cache ]; then
  17     echo "Not in the A.cpu-company-system."
  18     exit 2
  19 fi
  20
  21 # look for files that changed vs. config.cache
  22 pat=""
  23 for i in ${macdir}/*.m4; do
  24     if test $i -nt config.cache; then
  25         n=`egrep '^ac_cv_' $i |sed 's/[^a-zA-Z0-9_].*//g'|sort|uniq`
  26         if test -z "$n"; then
  27             continue;
  28         fi
  29         if test -z "$pat"; then
  30             pat="$n"
  31         else
  32             pat="$pat|$n"
  33         fi
  34     fi
  35 done
  36 echo "$pat"