1#! /bin/sh 2# depcomp - compile a program generating dependencies as side-effects 3 4scriptversion=2005-05-16.16 5 6# Copyright (C) 1999, 2000, 2003, 2004, 2005 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., 51 Franklin Street, Fifth Floor, Boston, MA 21# 02110-1301, 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 DEPDIR directory where to store dependencies. 47 depfile Dependency file to output. 48 tmpdepfile Temporary file to use when outputing dependencies. 49 libtool Whether libtool is used (yes/no). 50 51Report bugs to <bug-automake@gnu.org>. 52EOF 53 exit $? 54 ;; 55 -v | --v*) 56 echo "depcomp $scriptversion" 57 exit $? 58 ;; 59esac 60 61if test -z "$depmode" || test -z "$source" || test -z "$object"; then 62 echo "depcomp: Variables source, object and depmode must be set" 1>&2 63 exit 1 64fi 65 66# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. 67depfile=${depfile-`echo "$object" | 68 sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} 69tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} 70 71rm -f "$tmpdepfile" 72 73# Some modes work just like other modes, but use different flags. We 74# parameterize here, but still list the modes in the big case below, 75# to make depend.m4 easier to write. Note that we *cannot* use a case 76# here, because this file can only contain one case statement. 77if test "$depmode" = hp; then 78 # HP compiler uses -M and no extra arg. 79 gccflag=-M 80 depmode=gcc 81fi 82 83if test "$depmode" = dashXmstdout; then 84 # This is just like dashmstdout with a different argument. 85 dashmflag=-xM 86 depmode=dashmstdout 87fi 88 89case "$depmode" in 90gcc3) 91## gcc 3 implements dependency tracking that does exactly what 92## we want. Yay! Note: for some reason libtool 1.4 doesn't like 93## it if -MD -MP comes after the -MF stuff. Hmm. 94 "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" 95 stat=$? 96 if test $stat -eq 0; then : 97 else 98 rm -f "$tmpdepfile" 99 exit $stat 100 fi 101 mv "$tmpdepfile" "$depfile" 102 ;; 103 104gcc) 105## There are various ways to get dependency output from gcc. Here's 106## why we pick this rather obscure method: 107## - Don't want to use -MD because we'd like the dependencies to end 108## up in a subdir. Having to rename by hand is ugly. 109## (We might end up doing this anyway to support other compilers.) 110## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like 111## -MM, not -M (despite what the docs say). 112## - Using -M directly means running the compiler twice (even worse 113## than renaming). 114 if test -z "$gccflag"; then 115 gccflag=-MD, 116 fi 117 "$@" -Wp,"$gccflag$tmpdepfile" 118 stat=$? 119 if test $stat -eq 0; then : 120 else 121 rm -f "$tmpdepfile" 122 exit $stat 123 fi 124 rm -f "$depfile" 125 echo "$object : \\" > "$depfile" 126 alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz 127## The second -e expression handles DOS-style file names with drive letters. 128 sed -e 's/^[^:]*: / /' \ 129 -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" 130## This next piece of magic avoids the `deleted header file' problem. 131## The problem is that when a header file which appears in a .P file 132## is deleted, the dependency causes make to die (because there is 133## typically no way to rebuild the header). We avoid this by adding 134## dummy dependencies for each header file. Too bad gcc doesn't do 135## this for us directly. 136 tr ' ' ' 137' < "$tmpdepfile" | 138## Some versions of gcc put a space before the `:'. On the theory 139## that the space means something, we add a space to the output as 140## well. 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 rm -f "$tmpdepfile" 145 ;; 146 147hp) 148 # This case exists only to let depend.m4 do its work. It works by 149 # looking at the text of this script. This case will never be run, 150 # since it is checked for above. 151 exit 1 152 ;; 153 154sgi) 155 if test "$libtool" = yes; then 156 "$@" "-Wp,-MDupdate,$tmpdepfile" 157 else 158 "$@" -MDupdate "$tmpdepfile" 159 fi 160 stat=$? 161 if test $stat -eq 0; then : 162 else 163 rm -f "$tmpdepfile" 164 exit $stat 165 fi 166 rm -f "$depfile" 167 168 if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files 169 echo "$object : \\" > "$depfile" 170 171 # Clip off the initial element (the dependent). Don't try to be 172 # clever and replace this with sed code, as IRIX sed won't handle 173 # lines with more than a fixed number of characters (4096 in 174 # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; 175 # the IRIX cc adds comments like `#:fec' to the end of the 176 # dependency line. 177 tr ' ' ' 178' < "$tmpdepfile" \ 179 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \ 180 tr ' 181' ' ' >> $depfile 182 echo >> $depfile 183 184 # The second pass generates a dummy entry for each header file. 185 tr ' ' ' 186' < "$tmpdepfile" \ 187 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ 188 >> $depfile 189 else 190 # The sourcefile does not contain any dependencies, so just 191 # store a dummy comment line, to avoid errors with the Makefile 192 # "include basename.Plo" scheme. 193 echo "#dummy" > "$depfile" 194 fi 195 rm -f "$tmpdepfile" 196 ;; 197 198aix) 199 # The C for AIX Compiler uses -M and outputs the dependencies 200 # in a .u file. In older versions, this file always lives in the 201 # current directory. Also, the AIX compiler puts `$object:' at the 202 # start of each line; $object doesn't have directory information. 203 # Version 6 uses the directory in both cases. 204 stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'` 205 tmpdepfile="$stripped.u" 206 if test "$libtool" = yes; then 207 "$@" -Wc,-M 208 else 209 "$@" -M 210 fi 211 stat=$? 212 213 if test -f "$tmpdepfile"; then : 214 else 215 stripped=`echo "$stripped" | sed 's,^.*/,,'` 216 tmpdepfile="$stripped.u" 217 fi 218 219 if test $stat -eq 0; then : 220 else 221 rm -f "$tmpdepfile" 222 exit $stat 223 fi 224 225 if test -f "$tmpdepfile"; then 226 outname="$stripped.o" 227 # Each line is of the form `foo.o: dependent.h'. 228 # Do two passes, one to just change these to 229 # `$object: dependent.h' and one to simply `dependent.h:'. 230 sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile" 231 sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile" 232 else 233 # The sourcefile does not contain any dependencies, so just 234 # store a dummy comment line, to avoid errors with the Makefile 235 # "include basename.Plo" scheme. 236 echo "#dummy" > "$depfile" 237 fi 238 rm -f "$tmpdepfile" 239 ;; 240 241icc) 242 # Intel's C compiler understands `-MD -MF file'. However on 243 # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c 244 # ICC 7.0 will fill foo.d with something like 245 # foo.o: sub/foo.c 246 # foo.o: sub/foo.h 247 # which is wrong. We want: 248 # sub/foo.o: sub/foo.c 249 # sub/foo.o: sub/foo.h 250 # sub/foo.c: 251 # sub/foo.h: 252 # ICC 7.1 will output 253 # foo.o: sub/foo.c sub/foo.h 254 # and will wrap long lines using \ : 255 # foo.o: sub/foo.c ... \ 256 # sub/foo.h ... \ 257 # ... 258 259 "$@" -MD -MF "$tmpdepfile" 260 stat=$? 261 if test $stat -eq 0; then : 262 else 263 rm -f "$tmpdepfile" 264 exit $stat 265 fi 266 rm -f "$depfile" 267 # Each line is of the form `foo.o: dependent.h', 268 # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. 269 # Do two passes, one to just change these to 270 # `$object: dependent.h' and one to simply `dependent.h:'. 271 sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" 272 # Some versions of the HPUX 10.20 sed can't process this invocation 273 # correctly. Breaking it into two sed invocations is a workaround. 274 sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" | 275 sed -e 's/$/ :/' >> "$depfile" 276 rm -f "$tmpdepfile" 277 ;; 278 279ia64hp) 280 # The "hp" stanza above does not work with HP's ia64 compilers, 281 # which have integrated preprocessors. The correct option to use 282 # with these is +Maked; it writes dependencies to a file named 283 # 'foo.d', which lands next to the object file, wherever that 284 # happens to be. 285 tmpdepfile=`echo "$object" | sed -e 's/\.o$/.d/'` 286 "$@" +Maked 287 stat=$? 288 if test $stat -eq 0; then : 289 else 290 rm -f "$tmpdepfile" 291 exit $stat 292 fi 293 rm -f "$depfile" 294 295 # The object file name is correct already. 296 cat "$tmpdepfile" > "$depfile" 297 # Add `dependent.h:' lines. 298 sed -ne '2,${; s/^ //; s/ \\*$//; s/$/:/; p; }' "$tmpdepfile" >> "$depfile" 299 rm -f "$tmpdepfile" 300 ;; 301 302tru64) 303 # The Tru64 compiler uses -MD to generate dependencies as a side 304 # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'. 305 # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put 306 # dependencies in `foo.d' instead, so we check for that too. 307 # Subdirectories are respected. 308 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'` 309 test "x$dir" = "x$object" && dir= 310 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'` 311 312 if test "$libtool" = yes; then 313 # With Tru64 cc, shared objects can also be used to make a 314 # static library. This mecanism is used in libtool 1.4 series to 315 # handle both shared and static libraries in a single compilation. 316 # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d. 317 # 318 # With libtool 1.5 this exception was removed, and libtool now 319 # generates 2 separate objects for the 2 libraries. These two 320 # compilations output dependencies in in $dir.libs/$base.o.d and 321 # in $dir$base.o.d. We have to check for both files, because 322 # one of the two compilations can be disabled. We should prefer 323 # $dir$base.o.d over $dir.libs/$base.o.d because the latter is 324 # automatically cleaned when .libs/ is deleted, while ignoring 325 # the former would cause a distcleancheck panic. 326 tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4 327 tmpdepfile2=$dir$base.o.d # libtool 1.5 328 tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5 329 tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504 330 "$@" -Wc,-MD 331 else 332 tmpdepfile1=$dir$base.o.d 333 tmpdepfile2=$dir$base.d 334 tmpdepfile3=$dir$base.d 335 tmpdepfile4=$dir$base.d 336 "$@" -MD 337 fi 338 339 stat=$? 340 if test $stat -eq 0; then : 341 else 342 rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4" 343 exit $stat 344 fi 345 346 for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4" 347 do 348 test -f "$tmpdepfile" && break 349 done 350 if test -f "$tmpdepfile"; then 351 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile" 352 # That's a tab and a space in the []. 353 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile" 354 else 355 echo "#dummy" > "$depfile" 356 fi 357 rm -f "$tmpdepfile" 358 ;; 359 360#nosideeffect) 361 # This comment above is used by automake to tell side-effect 362 # dependency tracking mechanisms from slower ones. 363 364dashmstdout) 365 # Important note: in order to support this mode, a compiler *must* 366 # always write the preprocessed file to stdout, regardless of -o. 367 "$@" || exit $? 368 369 # Remove the call to Libtool. 370 if test "$libtool" = yes; then 371 while test $1 != '--mode=compile'; do 372 shift 373 done 374 shift 375 fi 376 377 # Remove `-o $object'. 378 IFS=" " 379 for arg 380 do 381 case $arg in 382 -o) 383 shift 384 ;; 385 $object) 386 shift 387 ;; 388 *) 389 set fnord "$@" "$arg" 390 shift # fnord 391 shift # $arg 392 ;; 393 esac 394 done 395 396 test -z "$dashmflag" && dashmflag=-M 397 # Require at least two characters before searching for `:' 398 # in the target name. This is to cope with DOS-style filenames: 399 # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise. 400 "$@" $dashmflag | 401 sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile" 402 rm -f "$depfile" 403 cat < "$tmpdepfile" > "$depfile" 404 tr ' ' ' 405' < "$tmpdepfile" | \ 406## Some versions of the HPUX 10.20 sed can't process this invocation 407## correctly. Breaking it into two sed invocations is a workaround. 408 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" 409 rm -f "$tmpdepfile" 410 ;; 411 412dashXmstdout) 413 # This case only exists to satisfy depend.m4. It is never actually 414 # run, as this mode is specially recognized in the preamble. 415 exit 1 416 ;; 417 418makedepend) 419 "$@" || exit $? 420 # Remove any Libtool call 421 if test "$libtool" = yes; then 422 while test $1 != '--mode=compile'; do 423 shift 424 done 425 shift 426 fi 427 # X makedepend 428 shift 429 cleared=no 430 for arg in "$@"; do 431 case $cleared in 432 no) 433 set ""; shift 434 cleared=yes ;; 435 esac 436 case "$arg" in 437 -D*|-I*) 438 set fnord "$@" "$arg"; shift ;; 439 # Strip any option that makedepend may not understand. Remove 440 # the object too, otherwise makedepend will parse it as a source file. 441 -*|$object) 442 ;; 443 *) 444 set fnord "$@" "$arg"; shift ;; 445 esac 446 done 447 obj_suffix="`echo $object | sed 's/^.*\././'`" 448 touch "$tmpdepfile" 449 ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@" 450 rm -f "$depfile" 451 cat < "$tmpdepfile" > "$depfile" 452 sed '1,2d' "$tmpdepfile" | tr ' ' ' 453' | \ 454## Some versions of the HPUX 10.20 sed can't process this invocation 455## correctly. Breaking it into two sed invocations is a workaround. 456 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" 457 rm -f "$tmpdepfile" "$tmpdepfile".bak 458 ;; 459 460cpp) 461 # Important note: in order to support this mode, a compiler *must* 462 # always write the preprocessed file to stdout. 463 "$@" || exit $? 464 465 # Remove the call to Libtool. 466 if test "$libtool" = yes; then 467 while test $1 != '--mode=compile'; do 468 shift 469 done 470 shift 471 fi 472 473 # Remove `-o $object'. 474 IFS=" " 475 for arg 476 do 477 case $arg in 478 -o) 479 shift 480 ;; 481 $object) 482 shift 483 ;; 484 *) 485 set fnord "$@" "$arg" 486 shift # fnord 487 shift # $arg 488 ;; 489 esac 490 done 491 492 "$@" -E | 493 sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ 494 -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' | 495 sed '$ s: \\$::' > "$tmpdepfile" 496 rm -f "$depfile" 497 echo "$object : \\" > "$depfile" 498 cat < "$tmpdepfile" >> "$depfile" 499 sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" 500 rm -f "$tmpdepfile" 501 ;; 502 503msvisualcpp) 504 # Important note: in order to support this mode, a compiler *must* 505 # always write the preprocessed file to stdout, regardless of -o, 506 # because we must use -o when running libtool. 507 "$@" || exit $? 508 IFS=" " 509 for arg 510 do 511 case "$arg" in 512 "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") 513 set fnord "$@" 514 shift 515 shift 516 ;; 517 *) 518 set fnord "$@" "$arg" 519 shift 520 shift 521 ;; 522 esac 523 done 524 "$@" -E | 525 sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile" 526 rm -f "$depfile" 527 echo "$object : \\" > "$depfile" 528 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile" 529 echo " " >> "$depfile" 530 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile" 531 rm -f "$tmpdepfile" 532 ;; 533 534none) 535 exec "$@" 536 ;; 537 538*) 539 echo "Unknown depmode $depmode" 1>&2 540 exit 1 541 ;; 542esac 543 544exit 0 545 546# Local Variables: 547# mode: shell-script 548# sh-indentation: 2 549# eval: (add-hook 'write-file-hooks 'time-stamp) 550# time-stamp-start: "scriptversion=" 551# time-stamp-format: "%:y-%02m-%02d.%02H" 552# time-stamp-end: "$" 553# End: 554