usr.bin/mkdep/mkdep.sh

   1 #!/bin/sh -
   2 #
   3 # Copyright (c) 1991, 1993
   4 #       The Regents of the University of California.  All rights reserved.
   5 #
   6 # Redistribution and use in source and binary forms, with or without
   7 # modification, are permitted provided that the following conditions
   8 # are met:
   9 # 1. Redistributions of source code must retain the above copyright
  10 #    notice, this list of conditions and the following disclaimer.
  11 # 2. Redistributions in binary form must reproduce the above copyright
  12 #    notice, this list of conditions and the following disclaimer in the
  13 #    documentation and/or other materials provided with the distribution.
  14 # 3. Neither the name of the University nor the names of its contributors
  15 #    may be used to endorse or promote products derived from this software
  16 #    without specific prior written permission.
  17 #
  18 # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  19 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21 # ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  22 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28 # SUCH DAMAGE.
  29 #
  30 #       @(#)mkdep.sh    8.1 (Berkeley) 6/6/93
  31 #
  32
  33 PATH=/bin:/usr/bin:/usr/ucb:/usr/old/bin
  34 export PATH
  35
  36 D=.depend                       # default dependency file is .depend
  37 append=0
  38
  39 while :
  40         do case "$1" in
  41                 # -a appends to the depend file
  42                 -a)
  43                         append=1
  44                         shift ;;
  45
  46                 # -f allows you to select a makefile name
  47                 -f)
  48                         D=$2
  49                         shift; shift ;;
  50
  51                 # the -p flag produces "program: program.c" style dependencies
  52                 # so .o's don't get produced
  53                 -p)
  54                         SED='s;\.o ; ;'
  55                         shift ;;
  56                 *)
  57                         break ;;
  58         esac
  59 done
  60
  61 if [ $# = 0 ] ; then
  62         echo 'usage: mkdep [-p] [-f depend_file] [cc_flags] file ...'
  63         exit 1
  64 fi
  65
  66 TMP=/tmp/mkdep$$
  67
  68 trap 'rm -f $TMP ; trap 2 ; kill -2 $$' 1 2 3 13 15
  69
  70 cc -M $* |
  71 sed "
  72         s; \./; ;g
  73         /\.c:$/d
  74         $SED" |
  75 awk '{
  76         if ($1 != prev) {
  77                 if (rec != "")
  78                         print rec;
  79                 rec = $0;
  80                 prev = $1;
  81         }
  82         else {
  83                 if (length(rec $2) > 78) {
  84                         print rec;
  85                         rec = $0;
  86                 }
  87                 else
  88                         rec = rec " " $2
  89         }
  90 }
  91 END {
  92         print rec
  93 }' > $TMP
  94
  95 if [ $? != 0 ]; then
  96         echo 'mkdep: compile failed.'
  97         rm -f $TMP
  98         exit 1
  99 fi
 100
 101 if [ $append = 1 ]; then
 102         cat $TMP >> $D
 103         rm -f $TMP
 104 else
 105         mv $TMP $D
 106 fi
 107 exit 0