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Annotation of libaitcfg/mkdep, revision 1.2

1.2     ! misho       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: # 4. 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.gcc.sh        8.1 (Berkeley) 6/6/93
        !            31: # $FreeBSD: head/usr.bin/mkdep/mkdep.gcc.sh 216370 2010-12-11 08:32:16Z joel $
        !            32: 
        !            33: D=.depend                      # default dependency file is .depend
        !            34: append=0
        !            35: pflag=
        !            36: 
        !            37: while :
        !            38:        do case "$1" in
        !            39:                # -a appends to the depend file
        !            40:                -a)
        !            41:                        append=1
        !            42:                        shift ;;
        !            43: 
        !            44:                # -f allows you to select a makefile name
        !            45:                -f)
        !            46:                        D=$2
        !            47:                        shift; shift ;;
        !            48: 
        !            49:                # the -p flag produces "program: program.c" style dependencies
        !            50:                # so .o's don't get produced
        !            51:                -p)
        !            52:                        pflag=p
        !            53:                        shift ;;
        !            54:                *)
        !            55:                        break ;;
        !            56:        esac
        !            57: done
        !            58: 
        !            59: case $# in 0) 
        !            60:        echo 'usage: mkdep [-ap] [-f file] [flags] file ...' >&2
        !            61:        exit 1;;
        !            62: esac
        !            63: 
        !            64: TMP=_mkdep$$
        !            65: trap 'rm -f $TMP ; trap 2 ; kill -2 $$' 1 2 3 13 15
        !            66: trap 'rm -f $TMP' 0
        !            67: 
        !            68: # For C sources, mkdep must use exactly the same cpp and predefined flags
        !            69: # as the compiler would.  This is easily arranged by letting the compiler
        !            70: # pick the cpp.  mkdep must be told the cpp to use for exceptional cases.
        !            71: CC=${CC-"cc"}
        !            72: MKDEP_CPP=${MKDEP_CPP-"${CC} -E"}
        !            73: MKDEP_CPP_OPTS=${MKDEP_CPP_OPTS-"-M"};
        !            74: 
        !            75: echo "# $@" > $TMP     # store arguments for debugging
        !            76: 
        !            77: if $MKDEP_CPP $MKDEP_CPP_OPTS "$@" >> $TMP; then :
        !            78: else
        !            79:        echo 'mkdep: compile failed' >&2
        !            80:        exit 1
        !            81: fi
        !            82: 
        !            83: case x$pflag in
        !            84:        x) case $append in 
        !            85:                0) sed -e 's; \./; ;g' < $TMP >  $D;;
        !            86:                *) sed -e 's; \./; ;g' < $TMP >> $D;;
        !            87:           esac
        !            88:        ;;      
        !            89:        *) case $append in 
        !            90:                0) sed -e 's;\.o:;:;' -e 's; \./; ;g' < $TMP >  $D;;
        !            91:                *) sed -e 's;\.o:;:;' -e 's; \./; ;g' < $TMP >> $D;;
        !            92:           esac
        !            93:        ;;
        !            94: esac
        !            95: 
        !            96: exit $?