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