#! /bin/sh

# Complain about unused #defines.
t=__wt.$$
trap 'rm -f $t; exit 0' 0 1 2 3 13 15

# List of source files to search.
l=`sed -e '/^[a-z]/!d' -e 's/[	 ].*$//' -e 's,^,../,' filelist`
l="$l `echo ../src/include/*.i ../src/utilities/*.c ../test/*/*.c`"

# List of include files for source #defines.
# Ignore the queue.h file, we don't use most of it.
dl="../src/include/*.[hi] ../src/include/*.in"
dl=`echo $dl | sed 's/ [^ ]*queue.h//'`

(
# Copy out the list of #defines we don't use, but it's OK.
sed -e '/^$/d' -e '/^#/d' < s_define.list

# Search the list of include files for #defines
# Ignore configuration objects #defines
# Ignore statistic "keys" generated for applications #defines
search=`cat $dl |
    sed -e '/configuration section: BEGIN/,/configuration section: END/d' \
        -e '/Statistics section: BEGIN/,/Statistics section: END/d' |
    egrep '^#define' |
    sed 's/#define[	 ][	 ]*\([A-Za-z_][A-Za-z0-9_]*\).*/\1/' |
    sort -u`

# Print the list of macros, followed by the occurrences: we're looking for
# macros that only appear once.
echo "$search"
fgrep -who "$search" $l

) | sort | uniq -u > $t

test -s $t && cat $t

exit 0