depcomp

   1 #! /bin/sh
   2
   3 # depcomp - compile a program generating dependencies as side-effects
   4 # Copyright 1999, 2000 Free Software Foundation, Inc.
   5
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2, or (at your option)
   9 # any later version.
  10
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  19 # 02111-1307, USA.
  20
  21 # Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
  22
  23 if test -z "$depmode" || test -z "$source" || test -z "$object"; then
  24   echo "depcomp: Variables source, object and depmode must be set" 1>&2
  25   exit 1
  26 fi
  27 # `libtool' can also be set to `yes' or `no'.
  28
  29 depfile=${depfile-`echo "$object" | sed 's,\([^/]*\)$,.deps/\1,;s/\.\([^.]*\)$/.P\1/'`}
  30 tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
  31
  32 rm -f "$tmpdepfile"
  33
  34 # Some modes work just like other modes, but use different flags.  We
  35 # parameterize here, but still list the modes in the big case below,
  36 # to make depend.m4 easier to write.  Note that we *cannot* use a case
  37 # here, because this file can only contain one case statement.
  38 if test "$depmode" = hp; then
  39   # HP compiler uses -M and no extra arg.
  40   gccflag=-M
  41   depmode=gcc
  42 fi
  43
  44 if test "$depmode" = dashXmstdout; then
  45    # This is just like dashmstdout with a different argument.
  46    dashmflag=-xM
  47    depmode=dashmstdout
  48 fi
  49
  50 case "$depmode" in
  51 gcc3)
  52 ## gcc 3 implements dependency tracking that does exactly what
  53 ## we want.  Yay!
  54   "$@" -MT "$object" -MF "$tmpdepfile" -MD -MP
  55   stat=$?
  56   if test $stat -eq 0; then :
  57   else
  58     rm -f "$tmpdepfile"
  59     exit $stat
  60   fi
  61   mv "$tmpdepfile" "$depfile"
  62   ;;
  63
  64 gcc)
  65 ## There are various ways to get dependency output from gcc.  Here's
  66 ## why we pick this rather obscure method:
  67 ## - Don't want to use -MD because we'd like the dependencies to end
  68 ##   up in a subdir.  Having to rename by hand is ugly.
  69 ##   (We might end up doing this anyway to support other compilers.)
  70 ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
  71 ##   -MM, not -M (despite what the docs say).
  72 ## - Using -M directly means running the compiler twice (even worse
  73 ##   than renaming).
  74   if test -z "$gccflag"; then
  75     gccflag=-MD,
  76   fi
  77   "$@" -Wp,"$gccflag$tmpdepfile"
  78   stat=$?
  79   if test $stat -eq 0; then :
  80   else
  81     rm -f "$tmpdepfile"
  82     exit $stat
  83   fi
  84   rm -f "$depfile"
  85   echo "$object : \\" > "$depfile"
  86   alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
  87 ## The second -e expression handles DOS-style file names with drive letters.
  88   sed -e 's/^[^:]*: / /' \
  89       -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
  90 ## This next piece of magic avoids the `deleted header file' problem.
  91 ## The problem is that when a header file which appears in a .P file
  92 ## is deleted, the dependency causes make to die (because there is
  93 ## typically no way to rebuild the header).  We avoid this by adding
  94 ## dummy dependencies for each header file.  Too bad gcc doesn't do
  95 ## this for us directly.
  96   tr ' ' '
  97 ' < "$tmpdepfile" |
  98 ## Some versions of gcc put a space before the `:'.  On the theory
  99 ## that the space means something, we add a space to the output as
 100 ## well.
 101 ## Some versions of the HPUX 10.20 sed can't process this invocation
 102 ## correctly.  Breaking it into two sed invocations is a workaround.
 103     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 104   rm -f "$tmpdepfile"
 105   ;;
 106
 107 hp)
 108   # This case exists only to let depend.m4 do its work.  It works by
 109   # looking at the text of this script.  This case will never be run,
 110   # since it is checked for above.
 111   exit 1
 112   ;;
 113
 114 sgi)
 115   if test "$libtool" = yes; then
 116     "$@" "-Wp,-MDupdate,$tmpdepfile"
 117   else
 118     "$@" -MDupdate "$tmpdepfile"
 119   fi
 120   stat=$?
 121   if test $stat -eq 0; then :
 122   else
 123     rm -f "$tmpdepfile"
 124     exit $stat
 125   fi
 126   rm -f "$depfile"
 127
 128   if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
 129     echo "$object : \\" > "$depfile"
 130
 131     # Clip off the initial element (the dependent). Don't try to be
 132     # clever and replace this with sed code, as IRIX sed won't handle
 133     # lines with more than a fixed number of characters (4096 in
 134     # IRIX 6.2 sed, 8192 in IRIX 6.5).
 135     tr ' ' '
 136 ' < "$tmpdepfile" | sed 's/^.*\.o://' | tr '
 137 ' ' ' >> $depfile
 138
 139     tr ' ' '
 140 ' < "$tmpdepfile" | \
 141 ## Some versions of the HPUX 10.20 sed can't process this invocation
 142 ## correctly.  Breaking it into two sed invocations is a workaround.
 143       sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 144   else
 145     # The sourcefile does not contain any dependencies, so just
 146     # store a dummy comment line, to avoid errors with the Makefile
 147     # "include basename.Plo" scheme.
 148     echo "#dummy" > "$depfile"
 149   fi
 150   rm -f "$tmpdepfile"
 151   ;;
 152
 153 aix)
 154   # The C for AIX Compiler uses -M and outputs the dependencies
 155   # in a .u file.
 156   tmpdepfile=`echo "$object" | sed 's/\(.*\)\..*$/\1.u/'`
 157   if test "$libtool" = yes; then
 158     "$@" -Wc,-M
 159   else
 160     "$@" -M
 161   fi
 162
 163   stat=$?
 164   if test $stat -eq 0; then :
 165   else
 166     rm -f "$tmpdepfile"
 167     exit $stat
 168   fi
 169
 170   if test -f "$tmpdepfile"; then
 171     echo "$object : \\" > "$depfile"
 172
 173     # Clip off the initial element (the dependent). Don't try to be
 174     # clever and replace this with sed code, as IRIX sed won't handle
 175     # lines with more than a fixed number of characters (4096 in
 176     # IRIX 6.2 sed, 8192 in IRIX 6.5).
 177     tr ' ' '
 178 ' < "$tmpdepfile" | sed 's/^[^\.]*\.o://' | tr '
 179 ' ' ' >> $depfile
 180
 181     tr ' ' '
 182 ' < "$tmpdepfile" | \
 183 ## Some versions of the HPUX 10.20 sed can't process this invocation
 184 ## correctly.  Breaking it into two sed invocations is a workaround.
 185       sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 186   else
 187     # The sourcefile does not contain any dependencies, so just
 188     # store a dummy comment line, to avoid errors with the Makefile
 189     # "include basename.Plo" scheme.
 190     echo "#dummy" > "$depfile"
 191   fi
 192   rm -f "$tmpdepfile"
 193   ;;
 194
 195 #nosideeffect)
 196   # This comment above is used by automake to tell side-effect
 197   # dependency tracking mechanisms from slower ones.
 198
 199 dashmstdout)
 200   # Important note: in order to support this mode, a compiler *must*
 201   # always write the proprocessed file to stdout, regardless of -o,
 202   # because we must use -o when running libtool.
 203   test -z "$dashmflag" && dashmflag=-M
 204   ( IFS=" "
 205     case " $* " in
 206     *" --mode=compile "*) # this is libtool, let us make it quiet
 207       for arg
 208       do # cycle over the arguments
 209         case "$arg" in
 210         "--mode=compile")
 211           # insert --quiet before "--mode=compile"
 212           set fnord "$@" --quiet
 213           shift # fnord
 214           ;;
 215         esac
 216         set fnord "$@" "$arg"
 217         shift # fnord
 218         shift # "$arg"
 219       done
 220       ;;
 221     esac
 222     "$@" $dashmflag | sed 's:^[^:]*\:[  ]*:'"$object"'\: :' > "$tmpdepfile"
 223   ) &
 224   proc=$!
 225   "$@"
 226   stat=$?
 227   wait "$proc"
 228   if test "$stat" != 0; then exit $stat; fi
 229   rm -f "$depfile"
 230   cat < "$tmpdepfile" > "$depfile"
 231   tr ' ' '
 232 ' < "$tmpdepfile" | \
 233 ## Some versions of the HPUX 10.20 sed can't process this invocation
 234 ## correctly.  Breaking it into two sed invocations is a workaround.
 235     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 236   rm -f "$tmpdepfile"
 237   ;;
 238
 239 dashXmstdout)
 240   # This case only exists to satisfy depend.m4.  It is never actually
 241   # run, as this mode is specially recognized in the preamble.
 242   exit 1
 243   ;;
 244
 245 makedepend)
 246   # X makedepend
 247   (
 248     shift
 249     cleared=no
 250     for arg in "$@"; do
 251       case $cleared in no)
 252         set ""; shift
 253         cleared=yes
 254       esac
 255       case "$arg" in
 256         -D*|-I*)
 257           set fnord "$@" "$arg"; shift;;
 258         -*)
 259           ;;
 260         *)
 261           set fnord "$@" "$arg"; shift;;
 262       esac
 263     done
 264     obj_suffix="`echo $object | sed 's/^.*\././'`"
 265     touch "$tmpdepfile"
 266     ${MAKEDEPEND-makedepend} 2>/dev/null -o"$obj_suffix" -f"$tmpdepfile" "$@"
 267   ) &
 268   proc=$!
 269   "$@"
 270   stat=$?
 271   wait "$proc"
 272   if test "$stat" != 0; then exit $stat; fi
 273   rm -f "$depfile"
 274   cat < "$tmpdepfile" > "$depfile"
 275   tail +3 "$tmpdepfile" | tr ' ' '
 276 ' | \
 277 ## Some versions of the HPUX 10.20 sed can't process this invocation
 278 ## correctly.  Breaking it into two sed invocations is a workaround.
 279     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 280   rm -f "$tmpdepfile" "$tmpdepfile".bak
 281   ;;
 282
 283 cpp)
 284   # Important note: in order to support this mode, a compiler *must*
 285   # always write the proprocessed file to stdout, regardless of -o,
 286   # because we must use -o when running libtool.
 287   ( IFS=" "
 288     case " $* " in
 289     *" --mode=compile "*)
 290       for arg
 291       do # cycle over the arguments
 292         case $arg in
 293         "--mode=compile")
 294           # insert --quiet before "--mode=compile"
 295           set fnord "$@" --quiet
 296           shift # fnord
 297           ;;
 298         esac
 299         set fnord "$@" "$arg"
 300         shift # fnord
 301         shift # "$arg"
 302       done
 303       ;;
 304     esac
 305     "$@" -E |
 306     sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
 307     sed '$ s: \\$::' > "$tmpdepfile"
 308   ) &
 309   proc=$!
 310   "$@"
 311   stat=$?
 312   wait "$proc"
 313   if test "$stat" != 0; then exit $stat; fi
 314   rm -f "$depfile"
 315   echo "$object : \\" > "$depfile"
 316   cat < "$tmpdepfile" >> "$depfile"
 317   sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
 318   rm -f "$tmpdepfile"
 319   ;;
 320
 321 msvisualcpp)
 322   # Important note: in order to support this mode, a compiler *must*
 323   # always write the proprocessed file to stdout, regardless of -o,
 324   # because we must use -o when running libtool.
 325   ( IFS=" "
 326     case " $* " in
 327     *" --mode=compile "*)
 328       for arg
 329       do # cycle over the arguments
 330         case $arg in
 331         "--mode=compile")
 332           # insert --quiet before "--mode=compile"
 333           set fnord "$@" --quiet
 334           shift # fnord
 335           ;;
 336         esac
 337         set fnord "$@" "$arg"
 338         shift # fnord
 339         shift # "$arg"
 340       done
 341       ;;
 342     esac
 343     "$@" -E |
 344     sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
 345   ) &
 346   proc=$!
 347   "$@"
 348   stat=$?
 349   wait "$proc"
 350   if test "$stat" != 0; then exit $stat; fi
 351   rm -f "$depfile"
 352   echo "$object : \\" > "$depfile"
 353   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::    \1 \\:p' >> "$depfile"
 354   echo "        " >> "$depfile"
 355   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
 356   rm -f "$tmpdepfile"
 357   ;;
 358
 359 none)
 360   exec "$@"
 361   ;;
 362
 363 *)
 364   echo "Unknown depmode $depmode" 1>&2
 365   exit 1
 366   ;;
 367 esac
 368
 369 exit 0