aoqi@0: #! /bin/sh
aoqi@0: #
aoqi@0: # This file is used by adlc.make to selectively update generated
aoqi@0: # adlc files. Because source and target diretories are relative
aoqi@0: # paths, this file is copied to the target build directory before
aoqi@0: # use.
aoqi@0: #
aoqi@0: # adlc-updater <file> <source-dir> <target-dir>
aoqi@0: #
aoqi@0: fix_lines() {
aoqi@0:   # repair bare #line directives in $1 to refer to $2
aoqi@0:   awk < $1 > $1+ '
aoqi@0:     /^#line 999999$/ {print "#line " (NR+1) " \"" F2 "\""; next}
aoqi@0:     {print}
aoqi@0:   ' F2=$2
aoqi@0:   mv $1+ $1
aoqi@0: }
aoqi@0: fix_lines $2/$1 $3/$1
aoqi@0: [ -f $3/$1 ] && cmp -s $2/$1 $3/$1 || \
aoqi@0: ( [ -f $3/$1 ] && echo Updating $3/$1 ; touch $2/made-change ; mv $2/$1 $3/$1 )