git.sesse.net Git - rdpsrv/blob - Xserver/config/util/mdepend.cpp

   1 XCOMM!/bin/sh
   2 XCOMM
   3 XCOMM $TOG: mdepend.cpp /main/13 1997/06/20 21:12:18 kaleb $
   4 XCOMM
   5 XCOMM   Do the equivalent of the 'makedepend' program, but do it right.
   6 XCOMM
   7 XCOMM   Usage:
   8 XCOMM
   9 XCOMM   makedepend [cpp-flags] [-w width] [-s magic-string] [-f makefile]
  10 XCOMM     [-o object-suffix]
  11 XCOMM
  12 XCOMM   Notes:
  13 XCOMM
  14 XCOMM   The C compiler used can be overridden with the environment
  15 XCOMM   variable "CC".
  16 XCOMM
  17 XCOMM   The "-v" switch of the "makedepend" program is not supported.
  18 XCOMM
  19 XCOMM
  20 XCOMM   This script should
  21 XCOMM   work on both USG and BSD systems.  However, when System V.4 comes out,
  22 XCOMM   USG users will probably have to change "silent" to "-s" instead of
  23 XCOMM   "-" (at least, that is what the documentation implies).
  24 XCOMM
  25 XCOMM $XFree86: xc/config/util/mdepend.cpp,v 3.1.8.1 1997/06/29 08:43:27 dawes Exp $
  26 XCOMM
  27
  28 CC=PREPROC
  29
  30 silent='-'
  31
  32 TMP=/tmp/mdep$$
  33 CPPCMD=${TMP}a
  34 DEPENDLINES=${TMP}b
  35 TMPMAKEFILE=${TMP}c
  36 MAGICLINE=${TMP}d
  37 ARGS=${TMP}e
  38
  39 trap "rm -f ${TMP}*; exit 1" 1 2 15
  40 trap "rm -f ${TMP}*; exit 0" 1 2 13
  41
  42 echo " \c" > $CPPCMD
  43 if [ `wc -c < $CPPCMD` -eq 1 ]
  44 then
  45     c="\c"
  46     n=
  47 else
  48     c=
  49     n="-n"
  50 fi
  51
  52 echo $n "$c" >$ARGS
  53
  54 files=
  55 makefile=
  56 magic_string='# DO NOT DELETE'
  57 objsuffix='.o'
  58 width=78
  59 endmarker=""
  60 verbose=n
  61 append=n
  62
  63 while [ $# != 0 ]
  64 do
  65     if [ "$endmarker"x != x ] && [ "$endmarker" = "$1" ]; then
  66         endmarker=""
  67     else
  68         case "$1" in
  69             -D*|-I*)
  70                 echo $n " '$1'$c" >> $ARGS
  71                 ;;
  72
  73             -g|-O)      # ignore so we can just pass $(CFLAGS) in
  74                 ;;
  75
  76             *)
  77                 if [ "$endmarker"x = x ]; then
  78                     case "$1" in
  79                         -w)
  80                             width="$2"
  81                             shift
  82                             ;;
  83                         -s)
  84                             magic_string="$2"
  85                             shift
  86                             ;;
  87                         -f*)
  88                             if [ "$1" = "-f-" ]; then
  89                                 makefile="-"
  90                             else
  91                                 makefile="$2"
  92                                 shift
  93                             fi
  94                             ;;
  95                         -o)
  96                             objsuffix="$2"
  97                             shift
  98                             ;;
  99
 100                         --*)
 101                             echo "$1" | sed 's/^\-\-//' >${TMP}end
 102                             endmarker="`cat ${TMP}end`"
 103                             rm -f ${TMP}end
 104                             if [ "$endmarker"x = x ]; then
 105                                 endmarker="--"
 106                             fi
 107                             ;;
 108                         -v)
 109                             verbose="y"
 110                             ;;
 111
 112                         -a)
 113                             append="y"
 114                             ;;
 115
 116                         -cc)
 117                             CC="$2"
 118                             shift
 119                             ;;
 120
 121                         -*)
 122                             echo "Unknown option '$1' ignored" 1>&2
 123                             ;;
 124                         *)
 125                             files="$files $1"
 126                             ;;
 127                     esac
 128                 fi
 129                 ;;
 130         esac
 131     fi
 132     shift
 133 done
 134 echo ' $*' >> $ARGS
 135
 136 echo "#!/bin/sh" > $CPPCMD
 137 echo "exec $CC `cat $ARGS`" >> $CPPCMD
 138 chmod +x $CPPCMD
 139 rm $ARGS
 140
 141 case "$makefile" in
 142     '')
 143         if [ -r makefile ]
 144         then
 145             makefile=makefile
 146         elif [ -r Makefile ]
 147         then
 148             makefile=Makefile
 149         else
 150             echo 'no makefile or Makefile found' 1>&2
 151             exit 1
 152         fi
 153         ;;
 154     -)
 155         makefile=$TMPMAKEFILE
 156         ;;
 157 esac
 158
 159 if [ "$verbose"x = "y"x ]; then
 160     cat $CPPCMD
 161 fi
 162
 163 echo '' > $DEPENDLINES
 164 for i in $files
 165 do
 166     $CPPCMD $i \
 167       | sed -n "/^#/s;^;$i ;p"
 168 done \
 169   | sed -e 's|/[^/.][^/]*/\.\.||g' -e 's|/\.[^.][^/]*/\.\.||g' \
 170     -e 's|"||g' -e 's| \./| |' \
 171   | awk '{
 172         if ($1 != $4  &&  $2 != "#ident" && $2 != "#pragma")
 173             {
 174             ofile = substr ($1, 1, length ($1) - 2) "'"$objsuffix"'"
 175             print ofile, $4
 176             }
 177         }' \
 178   | sort -u \
 179   | awk '
 180             {
 181             newrec = rec " " $2
 182             if ($1 != old1)
 183                 {
 184                 old1 = $1
 185                 if (rec != "")
 186                     print rec
 187                 rec = $1 ": " $2
 188                 }
 189             else if (length (newrec) > '"$width"')
 190                 {
 191                 print rec
 192                 rec = $1 ": " $2
 193                 }
 194             else
 195                 rec = newrec
 196             }
 197         END \
 198             {
 199             if (rec != "")
 200                 print rec
 201             }' \
 202   | egrep -v '^[^:]*:[  ]*$' >> $DEPENDLINES
 203
 204 trap "" 1 2 13 15       # Now we are committed
 205 case "$makefile" in
 206     $TMPMAKEFILE)
 207         ;;
 208     *)
 209         rm -f $makefile.bak
 210         cp $makefile $makefile.bak
 211         echo "Appending dependencies to $makefile"
 212         ;;
 213 esac
 214
 215 XCOMM
 216 XCOMM If not -a, append the magic string and a blank line so that
 217 XCOMM /^$magic_string/+1,\$d can be used to delete everything from after
 218 XCOMM the magic string to the end of the file.  Then, append a blank
 219 XCOMM line again and then the dependencies.
 220 XCOMM
 221 if [ "$append" = "n" ]
 222 then
 223     cat >> $makefile << END_OF_APPEND
 224
 225 $magic_string
 226
 227 END_OF_APPEND
 228     ed $silent $makefile << END_OF_ED_SCRIPT
 229 /^$magic_string/+1,\$d
 230 w
 231 q
 232 END_OF_ED_SCRIPT
 233     echo '' >>$makefile
 234 fi
 235
 236 cat $DEPENDLINES >>$makefile
 237
 238 case "$makefile" in
 239     $TMPMAKEFILE)
 240         cat $TMPMAKEFILE
 241         ;;
 242
 243 esac
 244
 245 rm -f ${TMP}*
 246 exit 0