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Annotation of src/usr.bin/mkdep/mkdep.append, Revision 1.3

1.1       deraadt     1: #!/bin/sh -
                      2: #
1.3     ! deraadt     3: #      $OpenBSD: mkdep.append,v 1.2 1996/06/26 05:37:07 deraadt Exp $
1.1       deraadt     4: #      $NetBSD: mkdep.append,v 1.2 1994/12/23 07:34:57 jtc Exp $
                      5: #
                      6: # Copyright (c) 1991, 1993
                      7: #      The Regents of the University of California.  All rights reserved.
                      8: #
                      9: # Redistribution and use in source and binary forms, with or without
                     10: # modification, are permitted provided that the following conditions
                     11: # are met:
                     12: # 1. Redistributions of source code must retain the above copyright
                     13: #    notice, this list of conditions and the following disclaimer.
                     14: # 2. Redistributions in binary form must reproduce the above copyright
                     15: #    notice, this list of conditions and the following disclaimer in the
                     16: #    documentation and/or other materials provided with the distribution.
                     17: # 3. All advertising materials mentioning features or use of this software
                     18: #    must display the following acknowledgement:
                     19: #      This product includes software developed by the University of
                     20: #      California, Berkeley and its contributors.
                     21: # 4. Neither the name of the University nor the names of its contributors
                     22: #    may be used to endorse or promote products derived from this software
                     23: #    without specific prior written permission.
                     24: #
                     25: # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     26: # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     27: # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     28: # ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     29: # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     30: # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     31: # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     32: # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     33: # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     34: # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     35: # SUCH DAMAGE.
                     36: #
                     37: #      @(#)mkdep.append        8.1 (Berkeley) 6/6/93
                     38: #
                     39:
                     40: PATH=/bin:/usr/bin:/usr/ucb
                     41: export PATH
                     42:
                     43: MAKE=Makefile                  # default makefile name is "Makefile"
                     44:
                     45: while :
                     46:        do case "$1" in
                     47:                # -f allows you to select a makefile name
                     48:                -f)
                     49:                        MAKE=$2
                     50:                        shift; shift ;;
                     51:
                     52:                # the -p flag produces "program: program.c" style dependencies
                     53:                # so .o's don't get produced
                     54:                -p)
                     55:                        SED='s;\.o;;'
                     56:                        shift ;;
                     57:                *)
                     58:                        break ;;
                     59:        esac
                     60: done
                     61:
                     62: if [ $# = 0 ] ; then
                     63:        echo 'usage: mkdep [-p] [-f makefile] [flags] file ...'
                     64:        exit 1
                     65: fi
                     66:
                     67: if [ ! -w $MAKE ]; then
                     68:        echo "mkdep: no writeable file \"$MAKE\""
                     69:        exit 1
                     70: fi
                     71:
1.3     ! deraadt    72: DTMP=/tmp/_mkdep$$
        !            73: TMP=$DTMP/mkdep
1.1       deraadt    74:
1.3     ! deraadt    75: um=`umask`
        !            76: umask 022
        !            77: if ! mkdir $DTMP ; then
        !            78:        echo failed to create tmp dir $DTMP
        !            79:        exit 1
        !            80: fi
        !            81: umask $um
        !            82: trap 'rm -rf $DTMP ; exit 1' 1 2 3 13 15
1.1       deraadt    83:
                     84: cp $MAKE ${MAKE}.bak
                     85:
                     86: sed -e '/DO NOT DELETE THIS LINE/,$d' < $MAKE > $TMP
                     87:
                     88: cat << _EOF_ >> $TMP
                     89: # DO NOT DELETE THIS LINE -- mkdep uses it.
                     90: # DO NOT PUT ANYTHING AFTER THIS LINE, IT WILL GO AWAY.
                     91:
                     92: _EOF_
                     93:
                     94: # If your compiler doesn't have -M, add it.  If you can't, the next two
                     95: # lines will try and replace the "cc -M".  The real problem is that this
                     96: # hack can't deal with anything that requires a search path, and doesn't
                     97: # even try for anything using bracket (<>) syntax.
                     98: #
                     99: # egrep '^#include[    ]*".*"' /dev/null $* |
                    100: # sed -e 's/:[^"]*"\([^"]*\)".*/: \1/' -e 's/\.c/.o/' |
                    101:
                    102: cc -M $* |
                    103: sed "
                    104:        s; \./; ;g
                    105:        $SED" |
                    106: awk '{
                    107:        if ($1 != prev) {
                    108:                if (rec != "")
                    109:                        print rec;
                    110:                rec = $0;
                    111:                prev = $1;
                    112:        }
                    113:        else {
                    114:                if (length(rec $2) > 78) {
                    115:                        print rec;
                    116:                        rec = $0;
                    117:                }
                    118:                else
                    119:                        rec = rec " " $2
                    120:        }
                    121: }
                    122: END {
                    123:        print rec
                    124: }' >> $TMP
                    125:
                    126: cat << _EOF_ >> $TMP
                    127:
                    128: # IF YOU PUT ANYTHING HERE IT WILL GO AWAY
                    129: _EOF_
                    130:
                    131: # copy to preserve permissions
                    132: cp $TMP $MAKE
1.3     ! deraadt   133: rm -rf ${MAKE}.bak $DTMP
1.1       deraadt   134: exit 0