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