1#! /bin/sh 2# depcomp - compile a program generating dependencies as side-effects 3 4scriptversion=2003-11-08.23 5 6# Copyright (C) 1999, 2000, 2003 Free Software Foundation, Inc. 7 8# This program is free software; you can redistribute it and/or modify 9# it under the terms of the GNU General Public License as published by 10# the Free Software Foundation; either version 2, or (at your option) 11# any later version. 12 13# This program is distributed in the hope that it will be useful, 14# but WITHOUT ANY WARRANTY; without even the implied warranty of 15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16# GNU General Public License for more details. 17 18# You should have received a copy of the GNU General Public License 19# along with this program; if not, write to the Free Software 20# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 21# 02111-1307, USA. 22 23# As a special exception to the GNU General Public License, if you 24# distribute this file as part of a program that contains a 25# configuration script generated by Autoconf, you may include it under 26# the same distribution terms that you use for the rest of that program. 27 28# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>. 29 30case $1 in 31 '') 32 echo "$0: No command. Try \`$0 --help' for more information." 1>&2 33 exit 1; 34 ;; 35 -h | --h*) 36 cat <<\EOF 37Usage: depcomp [--help] [--version] PROGRAM [ARGS] 38 39Run PROGRAMS ARGS to compile a file, generating dependencies 40as side-effects. 41 42Environment variables: 43 depmode Dependency tracking mode. 44 source Source file read by `PROGRAMS ARGS'. 45 object Object file output by `PROGRAMS ARGS'. 46 depfile Dependency file to output. 47 tmpdepfile Temporary file to use when outputing dependencies. 48 libtool Whether libtool is used (yes/no). 49 50Report bugs to <bug-automake@gnu.org>. 51EOF 52 exit 0 53 ;; 54 -v | --v*) 55 echo "depcomp $scriptversion" 56 exit 0 57 ;; 58esac 59 60if test -z "$depmode" || test -z "$source" || test -z "$object"; then 61 echo "depcomp: Variables source, object and depmode must be set" 1>&2 62 exit 1 63fi 64# `libtool' can also be set to `yes' or `no'. 65 66if test -z "$depfile"; then 67 base=`echo "$object" | sed -e 's,^.*/,,' -e 's,\.\([^.]*\)$,.P\1,'` 68 dir=`echo "$object" | sed 's,/.*$,/,'` 69 if test "$dir" = "$object"; then 70 dir= 71 fi 72 # FIXME: should be _deps on DOS. 73 depfile="$dir.deps/$base" 74fi 75 76tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} 77 78rm -f "$tmpdepfile" 79 80# Some modes work just like other modes, but use different flags. We 81# parameterize here, but still list the modes in the big case below, 82# to make depend.m4 easier to write. Note that we *cannot* use a case 83# here, because this file can only contain one case statement. 84if test "$depmode" = hp; then 85 # HP compiler uses -M and no extra arg. 86 gccflag=-M 87 depmode=gcc 88fi 89 90if test "$depmode" = dashXmstdout; then 91 # This is just like dashmstdout with a different argument. 92 dashmflag=-xM 93 depmode=dashmstdout 94fi 95 96case "$depmode" in 97gcc3) 98## gcc 3 implements dependency tracking that does exactly what 99## we want. Yay! Note: for some reason libtool 1.4 doesn't like 100## it if -MD -MP comes after the -MF stuff. Hmm. 101 "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" 102 stat=$? 103 if test $stat -eq 0; then : 104 else 105 rm -f "$tmpdepfile" 106 exit $stat 107 fi 108 mv "$tmpdepfile" "$depfile" 109 ;; 110 111gcc) 112## There are various ways to get dependency output from gcc. Here's 113## why we pick this rather obscure method: 114## - Don't want to use -MD because we'd like the dependencies to end 115## up in a subdir. Having to rename by hand is ugly. 116## (We might end up doing this anyway to support other compilers.) 117## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like 118## -MM, not -M (despite what the docs say). 119## - Using -M directly means running the compiler twice (even worse 120## than renaming). 121 if test -z "$gccflag"; then 122 gccflag=-MD, 123 fi 124 "$@" -Wp,"$gccflag$tmpdepfile" 125 stat=$? 126 if test $stat -eq 0; then : 127 else 128 rm -f "$tmpdepfile" 129 exit $stat 130 fi 131 rm -f "$depfile" 132 echo "$object : \\" > "$depfile" 133 alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz 134## The second -e expression handles DOS-style file names with drive letters. 135 sed -e 's/^[^:]*: / /' \ 136 -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" 137## This next piece of magic avoids the `deleted header file' problem. 138## The problem is that when a header file which appears in a .P file 139## is deleted, the dependency causes make to die (because there is 140## typically no way to rebuild the header). We avoid this by adding 141## dummy dependencies for each header file. Too bad gcc doesn't do 142## this for us directly. 143 tr ' ' ' 144' < "$tmpdepfile" | 145## Some versions of gcc put a space before the `:'. On the theory 146## that the space means something, we add a space to the output as 147## well. 148## Some versions of the HPUX 10.20 sed can't process this invocation 149## correctly. Breaking it into two sed invocations is a workaround. 150 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" 151 rm -f "$tmpdepfile" 152 ;; 153 154hp) 155 # This case exists only to let depend.m4 do its work. It works by 156 # looking at the text of this script. This case will never be run, 157 # since it is checked for above. 158 exit 1 159 ;; 160 161sgi) 162 if test "$libtool" = yes; then 163 "$@" "-Wp,-MDupdate,$tmpdepfile" 164 else 165 "$@" -MDupdate "$tmpdepfile" 166 fi 167 stat=$? 168 if test $stat -eq 0; then : 169 else 170 rm -f "$tmpdepfile" 171 exit $stat 172 fi 173 rm -f "$depfile" 174 175 if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files 176 echo "$object : \\" > "$depfile" 177 178 # Clip off the initial element (the dependent). Don't try to be 179 # clever and replace this with sed code, as IRIX sed won't handle 180 # lines with more than a fixed number of characters (4096 in 181 # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; 182 # the IRIX cc adds comments like `#:fec' to the end of the 183 # dependency line. 184 tr ' ' ' 185' < "$tmpdepfile" \ 186 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \ 187 tr ' 188' ' ' >> $depfile 189 echo >> $depfile 190 191 # The second pass generates a dummy entry for each header file. 192 tr ' ' ' 193' < "$tmpdepfile" \ 194 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ 195 >> $depfile 196 else 197 # The sourcefile does not contain any dependencies, so just 198 # store a dummy comment line, to avoid errors with the Makefile 199 # "include basename.Plo" scheme. 200 echo "#dummy" > "$depfile" 201 fi 202 rm -f "$tmpdepfile" 203 ;; 204 205aix) 206 # The C for AIX Compiler uses -M and outputs the dependencies 207 # in a .u file. In older versions, this file always lives in the 208 # current directory. Also, the AIX compiler puts `$object:' at the 209 # start of each line; $object doesn't have directory information. 210 # Version 6 uses the directory in both cases. 211 stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'` 212 tmpdepfile="$stripped.u" 213 if test "$libtool" = yes; then 214 "$@" -Wc,-M 215 else 216 "$@" -M 217 fi 218 stat=$? 219 220 if test -f "$tmpdepfile"; then : 221 else 222 stripped=`echo "$stripped" | sed 's,^.*/,,'` 223 tmpdepfile="$stripped.u" 224 fi 225 226 if test $stat -eq 0; then : 227 else 228 rm -f "$tmpdepfile" 229 exit $stat 230 fi 231 232 if test -f "$tmpdepfile"; then 233 outname="$stripped.o" 234 # Each line is of the form `foo.o: dependent.h'. 235 # Do two passes, one to just change these to 236 # `$object: dependent.h' and one to simply `dependent.h:'. 237 sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile" 238 sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile" 239 else 240 # The sourcefile does not contain any dependencies, so just 241 # store a dummy comment line, to avoid errors with the Makefile 242 # "include basename.Plo" scheme. 243 echo "#dummy" > "$depfile" 244 fi 245 rm -f "$tmpdepfile" 246 ;; 247 248icc) 249 # Intel's C compiler understands `-MD -MF file'. However on 250 # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c 251 # ICC 7.0 will fill foo.d with something like 252 # foo.o: sub/foo.c 253 # foo.o: sub/foo.h 254 # which is wrong. We want: 255 # sub/foo.o: sub/foo.c 256 # sub/foo.o: sub/foo.h 257 # sub/foo.c: 258 # sub/foo.h: 259 # ICC 7.1 will output 260 # foo.o: sub/foo.c sub/foo.h 261 # and will wrap long lines using \ : 262 # foo.o: sub/foo.c ... \ 263 # sub/foo.h ... \ 264 # ... 265 266 "$@" -MD -MF "$tmpdepfile" 267 stat=$? 268 if test $stat -eq 0; then : 269 else 270 rm -f "$tmpdepfile" 271 exit $stat 272 fi 273 rm -f "$depfile" 274 # Each line is of the form `foo.o: dependent.h', 275 # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. 276 # Do two passes, one to just change these to 277 # `$object: dependent.h' and one to simply `dependent.h:'. 278 sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" 279 # Some versions of the HPUX 10.20 sed can't process this invocation 280 # correctly. Breaking it into two sed invocations is a workaround. 281 sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" | 282 sed -e 's/$/ :/' >> "$depfile" 283 rm -f "$tmpdepfile" 284 ;; 285 286tru64) 287 # The Tru64 compiler uses -MD to generate dependencies as a side 288 # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'. 289 # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put 290 # dependencies in `foo.d' instead, so we check for that too. 291 # Subdirectories are respected. 292 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'` 293 test "x$dir" = "x$object" && dir= 294 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'` 295 296 if test "$libtool" = yes; then 297 tmpdepfile1="$dir.libs/$base.lo.d" 298 tmpdepfile2="$dir.libs/$base.d" 299 "$@" -Wc,-MD 300 else 301 tmpdepfile1="$dir$base.o.d" 302 tmpdepfile2="$dir$base.d" 303 "$@" -MD 304 fi 305 306 stat=$? 307 if test $stat -eq 0; then : 308 else 309 rm -f "$tmpdepfile1" "$tmpdepfile2" 310 exit $stat 311 fi 312 313 if test -f "$tmpdepfile1"; then 314 tmpdepfile="$tmpdepfile1" 315 else 316 tmpdepfile="$tmpdepfile2" 317 fi 318 if test -f "$tmpdepfile"; then 319 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile" 320 # That's a tab and a space in the []. 321 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile" 322 else 323 echo "#dummy" > "$depfile" 324 fi 325 rm -f "$tmpdepfile" 326 ;; 327 328#nosideeffect) 329 # This comment above is used by automake to tell side-effect 330 # dependency tracking mechanisms from slower ones. 331 332dashmstdout) 333 # Important note: in order to support this mode, a compiler *must* 334 # always write the preprocessed file to stdout, regardless of -o. 335 "$@" || exit $? 336 337 # Remove the call to Libtool. 338 if test "$libtool" = yes; then 339 while test $1 != '--mode=compile'; do 340 shift 341 done 342 shift 343 fi 344 345 # Remove `-o $object'. 346 IFS=" " 347 for arg 348 do 349 case $arg in 350 -o) 351 shift 352 ;; 353 $object) 354 shift 355 ;; 356 *) 357 set fnord "$@" "$arg" 358 shift # fnord 359 shift # $arg 360 ;; 361 esac 362 done 363 364 test -z "$dashmflag" && dashmflag=-M 365 # Require at least two characters before searching for `:' 366 # in the target name. This is to cope with DOS-style filenames: 367 # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise. 368 "$@" $dashmflag | 369 sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile" 370 rm -f "$depfile" 371 cat < "$tmpdepfile" > "$depfile" 372 tr ' ' ' 373' < "$tmpdepfile" | \ 374## Some versions of the HPUX 10.20 sed can't process this invocation 375## correctly. Breaking it into two sed invocations is a workaround. 376 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" 377 rm -f "$tmpdepfile" 378 ;; 379 380dashXmstdout) 381 # This case only exists to satisfy depend.m4. It is never actually 382 # run, as this mode is specially recognized in the preamble. 383 exit 1 384 ;; 385 386makedepend) 387 "$@" || exit $? 388 # Remove any Libtool call 389 if test "$libtool" = yes; then 390 while test $1 != '--mode=compile'; do 391 shift 392 done 393 shift 394 fi 395 # X makedepend 396 shift 397 cleared=no 398 for arg in "$@"; do 399 case $cleared in 400 no) 401 set ""; shift 402 cleared=yes ;; 403 esac 404 case "$arg" in 405 -D*|-I*) 406 set fnord "$@" "$arg"; shift ;; 407 # Strip any option that makedepend may not understand. Remove 408 # the object too, otherwise makedepend will parse it as a source file. 409 -*|$object) 410 ;; 411 *) 412 set fnord "$@" "$arg"; shift ;; 413 esac 414 done 415 obj_suffix="`echo $object | sed 's/^.*\././'`" 416 touch "$tmpdepfile" 417 ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@" 418 rm -f "$depfile" 419 cat < "$tmpdepfile" > "$depfile" 420 sed '1,2d' "$tmpdepfile" | tr ' ' ' 421' | \ 422## Some versions of the HPUX 10.20 sed can't process this invocation 423## correctly. Breaking it into two sed invocations is a workaround. 424 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" 425 rm -f "$tmpdepfile" "$tmpdepfile".bak 426 ;; 427 428cpp) 429 # Important note: in order to support this mode, a compiler *must* 430 # always write the preprocessed file to stdout. 431 "$@" || exit $? 432 433 # Remove the call to Libtool. 434 if test "$libtool" = yes; then 435 while test $1 != '--mode=compile'; do 436 shift 437 done 438 shift 439 fi 440 441 # Remove `-o $object'. 442 IFS=" " 443 for arg 444 do 445 case $arg in 446 -o) 447 shift 448 ;; 449 $object) 450 shift 451 ;; 452 *) 453 set fnord "$@" "$arg" 454 shift # fnord 455 shift # $arg 456 ;; 457 esac 458 done 459 460 "$@" -E | 461 sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' | 462 sed '$ s: \\$::' > "$tmpdepfile" 463 rm -f "$depfile" 464 echo "$object : \\" > "$depfile" 465 cat < "$tmpdepfile" >> "$depfile" 466 sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" 467 rm -f "$tmpdepfile" 468 ;; 469 470msvisualcpp) 471 # Important note: in order to support this mode, a compiler *must* 472 # always write the preprocessed file to stdout, regardless of -o, 473 # because we must use -o when running libtool. 474 "$@" || exit $? 475 IFS=" " 476 for arg 477 do 478 case "$arg" in 479 "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") 480 set fnord "$@" 481 shift 482 shift 483 ;; 484 *) 485 set fnord "$@" "$arg" 486 shift 487 shift 488 ;; 489 esac 490 done 491 "$@" -E | 492 sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile" 493 rm -f "$depfile" 494 echo "$object : \\" > "$depfile" 495 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile" 496 echo " " >> "$depfile" 497 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile" 498 rm -f "$tmpdepfile" 499 ;; 500 501none) 502 exec "$@" 503 ;; 504 505*) 506 echo "Unknown depmode $depmode" 1>&2 507 exit 1 508 ;; 509esac 510 511exit 0 512 513# Local Variables: 514# mode: shell-script 515# sh-indentation: 2 516# eval: (add-hook 'write-file-hooks 'time-stamp) 517# time-stamp-start: "scriptversion=" 518# time-stamp-format: "%:y-%02m-%02d.%02H" 519# time-stamp-end: "$" 520# End: 521