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# As a special exception to the GNU General Public License, if you 22# distribute this file as part of a program that contains a 23# configuration script generated by Autoconf, you may include it under 24# the same distribution terms that you use for the rest of that program. 25 26# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>. 27 28if test -z "$depmode" || test -z "$source" || test -z "$object"; then 29 echo "depcomp: Variables source, object and depmode must be set" 1>&2 30 exit 1 31fi 32# `libtool' can also be set to `yes' or `no'. 33 34if test -z "$depfile"; then 35 base=`echo "$object" | sed -e 's,^.*/,,' -e 's,\.\([^.]*\)$,.P\1,'` 36 dir=`echo "$object" | sed 's,/.*$,/,'` 37 if test "$dir" = "$object"; then 38 dir= 39 fi 40 # FIXME: should be _deps on DOS. 41 depfile="$dir.deps/$base" 42fi 43 44tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} 45 46rm -f "$tmpdepfile" 47 48# Some modes work just like other modes, but use different flags. We 49# parameterize here, but still list the modes in the big case below, 50# to make depend.m4 easier to write. Note that we *cannot* use a case 51# here, because this file can only contain one case statement. 52if test "$depmode" = hp; then 53 # HP compiler uses -M and no extra arg. 54 gccflag=-M 55 depmode=gcc 56fi 57 58if test "$depmode" = dashXmstdout; then 59 # This is just like dashmstdout with a different argument. 60 dashmflag=-xM 61 depmode=dashmstdout 62fi 63 64case "$depmode" in 65gcc3) 66## gcc 3 implements dependency tracking that does exactly what 67## we want. Yay! Note: for some reason libtool 1.4 doesn't like 68## it if -MD -MP comes after the -MF stuff. Hmm. 69 "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" 70 stat=$? 71 if test $stat -eq 0; then : 72 else 73 rm -f "$tmpdepfile" 74 exit $stat 75 fi 76 mv "$tmpdepfile" "$depfile" 77 ;; 78 79gcc) 80## There are various ways to get dependency output from gcc. Here's 81## why we pick this rather obscure method: 82## - Don't want to use -MD because we'd like the dependencies to end 83## up in a subdir. Having to rename by hand is ugly. 84## (We might end up doing this anyway to support other compilers.) 85## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like 86## -MM, not -M (despite what the docs say). 87## - Using -M directly means running the compiler twice (even worse 88## than renaming). 89 if test -z "$gccflag"; then 90 gccflag=-MD, 91 fi 92 "$@" -Wp,"$gccflag$tmpdepfile" 93 stat=$? 94 if test $stat -eq 0; then : 95 else 96 rm -f "$tmpdepfile" 97 exit $stat 98 fi 99 rm -f "$depfile" 100 echo "$object : \\" > "$depfile" 101 alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz 102## The second -e expression handles DOS-style file names with drive letters. 103 sed -e 's/^[^:]*: / /' \ 104 -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" 105## This next piece of magic avoids the `deleted header file' problem. 106## The problem is that when a header file which appears in a .P file 107## is deleted, the dependency causes make to die (because there is 108## typically no way to rebuild the header). We avoid this by adding 109## dummy dependencies for each header file. Too bad gcc doesn't do 110## this for us directly. 111 tr ' ' ' 112' < "$tmpdepfile" | 113## Some versions of gcc put a space before the `:'. On the theory 114## that the space means something, we add a space to the output as 115## well. 116## Some versions of the HPUX 10.20 sed can't process this invocation 117## correctly. Breaking it into two sed invocations is a workaround. 118 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" 119 rm -f "$tmpdepfile" 120 ;; 121 122hp) 123 # This case exists only to let depend.m4 do its work. It works by 124 # looking at the text of this script. This case will never be run, 125 # since it is checked for above. 126 exit 1 127 ;; 128 129sgi) 130 if test "$libtool" = yes; then 131 "$@" "-Wp,-MDupdate,$tmpdepfile" 132 else 133 "$@" -MDupdate "$tmpdepfile" 134 fi 135 stat=$? 136 if test $stat -eq 0; then : 137 else 138 rm -f "$tmpdepfile" 139 exit $stat 140 fi 141 rm -f "$depfile" 142 143 if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files 144 echo "$object : \\" > "$depfile" 145 146 # Clip off the initial element (the dependent). Don't try to be 147 # clever and replace this with sed code, as IRIX sed won't handle 148 # lines with more than a fixed number of characters (4096 in 149 # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; 150 # the IRIX cc adds comments like `#:fec' to the end of the 151 # dependency line. 152 tr ' ' ' 153' < "$tmpdepfile" \ 154 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \ 155 tr ' 156' ' ' >> $depfile 157 echo >> $depfile 158 159 # The second pass generates a dummy entry for each header file. 160 tr ' ' ' 161' < "$tmpdepfile" \ 162 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ 163 >> $depfile 164 else 165 # The sourcefile does not contain any dependencies, so just 166 # store a dummy comment line, to avoid errors with the Makefile 167 # "include basename.Plo" scheme. 168 echo "#dummy" > "$depfile" 169 fi 170 rm -f "$tmpdepfile" 171 ;; 172 173aix) 174 # The C for AIX Compiler uses -M and outputs the dependencies 175 # in a .u file. This file always lives in the current directory. 176 # Also, the AIX compiler puts `$object:' at the start of each line; 177 # $object doesn't have directory information. 178 stripped=`echo "$object" | sed -e 's,^.*/,,' -e 's/\(.*\)\..*$/\1/'` 179 tmpdepfile="$stripped.u" 180 outname="$stripped.o" 181 if test "$libtool" = yes; then 182 "$@" -Wc,-M 183 else 184 "$@" -M 185 fi 186 187 stat=$? 188 if test $stat -eq 0; then : 189 else 190 rm -f "$tmpdepfile" 191 exit $stat 192 fi 193 194 if test -f "$tmpdepfile"; then 195 # Each line is of the form `foo.o: dependent.h'. 196 # Do two passes, one to just change these to 197 # `$object: dependent.h' and one to simply `dependent.h:'. 198 sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile" 199 sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile" 200 else 201 # The sourcefile does not contain any dependencies, so just 202 # store a dummy comment line, to avoid errors with the Makefile 203 # "include basename.Plo" scheme. 204 echo "#dummy" > "$depfile" 205 fi 206 rm -f "$tmpdepfile" 207 ;; 208 209tru64) 210 # The Tru64 compiler uses -MD to generate dependencies as a side 211 # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'. 212 # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put 213 # dependencies in `foo.d' instead, so we check for that too. 214 # Subdirectories are respected. 215 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'` 216 test "x$dir" = "x$object" && dir= 217 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'` 218 219 if test "$libtool" = yes; then 220 tmpdepfile1="$dir.libs/$base.lo.d" 221 tmpdepfile2="$dir.libs/$base.d" 222 "$@" -Wc,-MD 223 else 224 tmpdepfile1="$dir$base.o.d" 225 tmpdepfile2="$dir$base.d" 226 "$@" -MD 227 fi 228 229 stat=$? 230 if test $stat -eq 0; then : 231 else 232 rm -f "$tmpdepfile1" "$tmpdepfile2" 233 exit $stat 234 fi 235 236 if test -f "$tmpdepfile1"; then 237 tmpdepfile="$tmpdepfile1" 238 else 239 tmpdepfile="$tmpdepfile2" 240 fi 241 if test -f "$tmpdepfile"; then 242 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile" 243 # That's a space and a tab in the []. 244 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile" 245 else 246 echo "#dummy" > "$depfile" 247 fi 248 rm -f "$tmpdepfile" 249 ;; 250 251#nosideeffect) 252 # This comment above is used by automake to tell side-effect 253 # dependency tracking mechanisms from slower ones. 254 255dashmstdout) 256 # Important note: in order to support this mode, a compiler *must* 257 # always write the proprocessed file to stdout, regardless of -o. 258 "$@" || exit $? 259 260 # Remove the call to Libtool. 261 if test "$libtool" = yes; then 262 while test $1 != '--mode=compile'; do 263 shift 264 done 265 shift 266 fi 267 268 # Remove `-o $object'. We will use -o /dev/null later, 269 # however we can't do the remplacement now because 270 # `-o $object' might simply not be used 271 IFS=" " 272 for arg 273 do 274 case $arg in 275 -o) 276 shift 277 ;; 278 $object) 279 shift 280 ;; 281 *) 282 set fnord "$@" "$arg" 283 shift # fnord 284 shift # $arg 285 ;; 286 esac 287 done 288 289 test -z "$dashmflag" && dashmflag=-M 290 "$@" -o /dev/null $dashmflag | sed 's:^[^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile" 291 rm -f "$depfile" 292 cat < "$tmpdepfile" > "$depfile" 293 tr ' ' ' 294' < "$tmpdepfile" | \ 295## Some versions of the HPUX 10.20 sed can't process this invocation 296## correctly. Breaking it into two sed invocations is a workaround. 297 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" 298 rm -f "$tmpdepfile" 299 ;; 300 301dashXmstdout) 302 # This case only exists to satisfy depend.m4. It is never actually 303 # run, as this mode is specially recognized in the preamble. 304 exit 1 305 ;; 306 307makedepend) 308 "$@" || exit $? 309 # X makedepend 310 shift 311 cleared=no 312 for arg in "$@"; do 313 case $cleared in 314 no) 315 set ""; shift 316 cleared=yes ;; 317 esac 318 case "$arg" in 319 -D*|-I*) 320 set fnord "$@" "$arg"; shift ;; 321 -*) 322 ;; 323 *) 324 set fnord "$@" "$arg"; shift ;; 325 esac 326 done 327 obj_suffix="`echo $object | sed 's/^.*\././'`" 328 touch "$tmpdepfile" 329 ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@" 330 rm -f "$depfile" 331 cat < "$tmpdepfile" > "$depfile" 332 sed '1,2d' "$tmpdepfile" | tr ' ' ' 333' | \ 334## Some versions of the HPUX 10.20 sed can't process this invocation 335## correctly. Breaking it into two sed invocations is a workaround. 336 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" 337 rm -f "$tmpdepfile" "$tmpdepfile".bak 338 ;; 339 340cpp) 341 # Important note: in order to support this mode, a compiler *must* 342 # always write the proprocessed file to stdout. 343 "$@" || exit $? 344 345 # Remove the call to Libtool. 346 if test "$libtool" = yes; then 347 while test $1 != '--mode=compile'; do 348 shift 349 done 350 shift 351 fi 352 353 # Remove `-o $object'. 354 IFS=" " 355 for arg 356 do 357 case $arg in 358 -o) 359 shift 360 ;; 361 $object) 362 shift 363 ;; 364 *) 365 set fnord "$@" "$arg" 366 shift # fnord 367 shift # $arg 368 ;; 369 esac 370 done 371 372 "$@" -E | 373 sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' | 374 sed '$ s: \\$::' > "$tmpdepfile" 375 rm -f "$depfile" 376 echo "$object : \\" > "$depfile" 377 cat < "$tmpdepfile" >> "$depfile" 378 sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" 379 rm -f "$tmpdepfile" 380 ;; 381 382msvisualcpp) 383 # Important note: in order to support this mode, a compiler *must* 384 # always write the proprocessed file to stdout, regardless of -o, 385 # because we must use -o when running libtool. 386 "$@" || exit $? 387 IFS=" " 388 for arg 389 do 390 case "$arg" in 391 "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") 392 set fnord "$@" 393 shift 394 shift 395 ;; 396 *) 397 set fnord "$@" "$arg" 398 shift 399 shift 400 ;; 401 esac 402 done 403 "$@" -E | 404 sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile" 405 rm -f "$depfile" 406 echo "$object : \\" > "$depfile" 407 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile" 408 echo " " >> "$depfile" 409 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile" 410 rm -f "$tmpdepfile" 411 ;; 412 413none) 414 exec "$@" 415 ;; 416 417*) 418 echo "Unknown depmode $depmode" 1>&2 419 exit 1 420 ;; 421esac 422 423exit 0 424