/ depcomp
depcomp
1 #! /bin/sh 2 # depcomp - compile a program generating dependencies as side-effects 3 4 scriptversion=2009-04-28.21; # UTC 5 6 # Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 Free 7 # Software Foundation, Inc. 8 9 # This program is free software; you can redistribute it and/or modify 10 # it under the terms of the GNU General Public License as published by 11 # the Free Software Foundation; either version 2, or (at your option) 12 # any later version. 13 14 # This program is distributed in the hope that it will be useful, 15 # but WITHOUT ANY WARRANTY; without even the implied warranty of 16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 # GNU General Public License for more details. 18 19 # You should have received a copy of the GNU General Public License 20 # along with this program. If not, see <http://www.gnu.org/licenses/>. 21 22 # As a special exception to the GNU General Public License, if you 23 # distribute this file as part of a program that contains a 24 # configuration script generated by Autoconf, you may include it under 25 # the same distribution terms that you use for the rest of that program. 26 27 # Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>. 28 29 case $1 in 30 '') 31 echo "$0: No command. Try \`$0 --help' for more information." 1>&2 32 exit 1; 33 ;; 34 -h | --h*) 35 cat <<\EOF 36 Usage: depcomp [--help] [--version] PROGRAM [ARGS] 37 38 Run PROGRAMS ARGS to compile a file, generating dependencies 39 as side-effects. 40 41 Environment variables: 42 depmode Dependency tracking mode. 43 source Source file read by `PROGRAMS ARGS'. 44 object Object file output by `PROGRAMS ARGS'. 45 DEPDIR directory where to store dependencies. 46 depfile Dependency file to output. 47 tmpdepfile Temporary file to use when outputing dependencies. 48 libtool Whether libtool is used (yes/no). 49 50 Report bugs to <bug-automake@gnu.org>. 51 EOF 52 exit $? 53 ;; 54 -v | --v*) 55 echo "depcomp $scriptversion" 56 exit $? 57 ;; 58 esac 59 60 if test -z "$depmode" || test -z "$source" || test -z "$object"; then 61 echo "depcomp: Variables source, object and depmode must be set" 1>&2 62 exit 1 63 fi 64 65 # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. 66 depfile=${depfile-`echo "$object" | 67 sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} 68 tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} 69 70 rm -f "$tmpdepfile" 71 72 # Some modes work just like other modes, but use different flags. We 73 # parameterize here, but still list the modes in the big case below, 74 # to make depend.m4 easier to write. Note that we *cannot* use a case 75 # here, because this file can only contain one case statement. 76 if test "$depmode" = hp; then 77 # HP compiler uses -M and no extra arg. 78 gccflag=-M 79 depmode=gcc 80 fi 81 82 if test "$depmode" = dashXmstdout; then 83 # This is just like dashmstdout with a different argument. 84 dashmflag=-xM 85 depmode=dashmstdout 86 fi 87 88 cygpath_u="cygpath -u -f -" 89 if test "$depmode" = msvcmsys; then 90 # This is just like msvisualcpp but w/o cygpath translation. 91 # Just convert the backslash-escaped backslashes to single forward 92 # slashes to satisfy depend.m4 93 cygpath_u="sed s,\\\\\\\\,/,g" 94 depmode=msvisualcpp 95 fi 96 97 case "$depmode" in 98 gcc3) 99 ## gcc 3 implements dependency tracking that does exactly what 100 ## we want. Yay! Note: for some reason libtool 1.4 doesn't like 101 ## it if -MD -MP comes after the -MF stuff. Hmm. 102 ## Unfortunately, FreeBSD c89 acceptance of flags depends upon 103 ## the command line argument order; so add the flags where they 104 ## appear in depend2.am. Note that the slowdown incurred here 105 ## affects only configure: in makefiles, %FASTDEP% shortcuts this. 106 for arg 107 do 108 case $arg in 109 -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;; 110 *) set fnord "$@" "$arg" ;; 111 esac 112 shift # fnord 113 shift # $arg 114 done 115 "$@" 116 stat=$? 117 if test $stat -eq 0; then : 118 else 119 rm -f "$tmpdepfile" 120 exit $stat 121 fi 122 mv "$tmpdepfile" "$depfile" 123 ;; 124 125 gcc) 126 ## There are various ways to get dependency output from gcc. Here's 127 ## why we pick this rather obscure method: 128 ## - Don't want to use -MD because we'd like the dependencies to end 129 ## up in a subdir. Having to rename by hand is ugly. 130 ## (We might end up doing this anyway to support other compilers.) 131 ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like 132 ## -MM, not -M (despite what the docs say). 133 ## - Using -M directly means running the compiler twice (even worse 134 ## than renaming). 135 if test -z "$gccflag"; then 136 gccflag=-MD, 137 fi 138 "$@" -Wp,"$gccflag$tmpdepfile" 139 stat=$? 140 if test $stat -eq 0; then : 141 else 142 rm -f "$tmpdepfile" 143 exit $stat 144 fi 145 rm -f "$depfile" 146 echo "$object : \\" > "$depfile" 147 alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz 148 ## The second -e expression handles DOS-style file names with drive letters. 149 sed -e 's/^[^:]*: / /' \ 150 -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" 151 ## This next piece of magic avoids the `deleted header file' problem. 152 ## The problem is that when a header file which appears in a .P file 153 ## is deleted, the dependency causes make to die (because there is 154 ## typically no way to rebuild the header). We avoid this by adding 155 ## dummy dependencies for each header file. Too bad gcc doesn't do 156 ## this for us directly. 157 tr ' ' ' 158 ' < "$tmpdepfile" | 159 ## Some versions of gcc put a space before the `:'. On the theory 160 ## that the space means something, we add a space to the output as 161 ## well. 162 ## Some versions of the HPUX 10.20 sed can't process this invocation 163 ## correctly. Breaking it into two sed invocations is a workaround. 164 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" 165 rm -f "$tmpdepfile" 166 ;; 167 168 hp) 169 # This case exists only to let depend.m4 do its work. It works by 170 # looking at the text of this script. This case will never be run, 171 # since it is checked for above. 172 exit 1 173 ;; 174 175 sgi) 176 if test "$libtool" = yes; then 177 "$@" "-Wp,-MDupdate,$tmpdepfile" 178 else 179 "$@" -MDupdate "$tmpdepfile" 180 fi 181 stat=$? 182 if test $stat -eq 0; then : 183 else 184 rm -f "$tmpdepfile" 185 exit $stat 186 fi 187 rm -f "$depfile" 188 189 if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files 190 echo "$object : \\" > "$depfile" 191 192 # Clip off the initial element (the dependent). Don't try to be 193 # clever and replace this with sed code, as IRIX sed won't handle 194 # lines with more than a fixed number of characters (4096 in 195 # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; 196 # the IRIX cc adds comments like `#:fec' to the end of the 197 # dependency line. 198 tr ' ' ' 199 ' < "$tmpdepfile" \ 200 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \ 201 tr ' 202 ' ' ' >> "$depfile" 203 echo >> "$depfile" 204 205 # The second pass generates a dummy entry for each header file. 206 tr ' ' ' 207 ' < "$tmpdepfile" \ 208 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ 209 >> "$depfile" 210 else 211 # The sourcefile does not contain any dependencies, so just 212 # store a dummy comment line, to avoid errors with the Makefile 213 # "include basename.Plo" scheme. 214 echo "#dummy" > "$depfile" 215 fi 216 rm -f "$tmpdepfile" 217 ;; 218 219 aix) 220 # The C for AIX Compiler uses -M and outputs the dependencies 221 # in a .u file. In older versions, this file always lives in the 222 # current directory. Also, the AIX compiler puts `$object:' at the 223 # start of each line; $object doesn't have directory information. 224 # Version 6 uses the directory in both cases. 225 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'` 226 test "x$dir" = "x$object" && dir= 227 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'` 228 if test "$libtool" = yes; then 229 tmpdepfile1=$dir$base.u 230 tmpdepfile2=$base.u 231 tmpdepfile3=$dir.libs/$base.u 232 "$@" -Wc,-M 233 else 234 tmpdepfile1=$dir$base.u 235 tmpdepfile2=$dir$base.u 236 tmpdepfile3=$dir$base.u 237 "$@" -M 238 fi 239 stat=$? 240 241 if test $stat -eq 0; then : 242 else 243 rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" 244 exit $stat 245 fi 246 247 for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" 248 do 249 test -f "$tmpdepfile" && break 250 done 251 if test -f "$tmpdepfile"; then 252 # Each line is of the form `foo.o: dependent.h'. 253 # Do two passes, one to just change these to 254 # `$object: dependent.h' and one to simply `dependent.h:'. 255 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile" 256 # That's a tab and a space in the []. 257 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile" 258 else 259 # The sourcefile does not contain any dependencies, so just 260 # store a dummy comment line, to avoid errors with the Makefile 261 # "include basename.Plo" scheme. 262 echo "#dummy" > "$depfile" 263 fi 264 rm -f "$tmpdepfile" 265 ;; 266 267 icc) 268 # Intel's C compiler understands `-MD -MF file'. However on 269 # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c 270 # ICC 7.0 will fill foo.d with something like 271 # foo.o: sub/foo.c 272 # foo.o: sub/foo.h 273 # which is wrong. We want: 274 # sub/foo.o: sub/foo.c 275 # sub/foo.o: sub/foo.h 276 # sub/foo.c: 277 # sub/foo.h: 278 # ICC 7.1 will output 279 # foo.o: sub/foo.c sub/foo.h 280 # and will wrap long lines using \ : 281 # foo.o: sub/foo.c ... \ 282 # sub/foo.h ... \ 283 # ... 284 285 "$@" -MD -MF "$tmpdepfile" 286 stat=$? 287 if test $stat -eq 0; then : 288 else 289 rm -f "$tmpdepfile" 290 exit $stat 291 fi 292 rm -f "$depfile" 293 # Each line is of the form `foo.o: dependent.h', 294 # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. 295 # Do two passes, one to just change these to 296 # `$object: dependent.h' and one to simply `dependent.h:'. 297 sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" 298 # Some versions of the HPUX 10.20 sed can't process this invocation 299 # correctly. Breaking it into two sed invocations is a workaround. 300 sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" | 301 sed -e 's/$/ :/' >> "$depfile" 302 rm -f "$tmpdepfile" 303 ;; 304 305 hp2) 306 # The "hp" stanza above does not work with aCC (C++) and HP's ia64 307 # compilers, which have integrated preprocessors. The correct option 308 # to use with these is +Maked; it writes dependencies to a file named 309 # 'foo.d', which lands next to the object file, wherever that 310 # happens to be. 311 # Much of this is similar to the tru64 case; see comments there. 312 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'` 313 test "x$dir" = "x$object" && dir= 314 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'` 315 if test "$libtool" = yes; then 316 tmpdepfile1=$dir$base.d 317 tmpdepfile2=$dir.libs/$base.d 318 "$@" -Wc,+Maked 319 else 320 tmpdepfile1=$dir$base.d 321 tmpdepfile2=$dir$base.d 322 "$@" +Maked 323 fi 324 stat=$? 325 if test $stat -eq 0; then : 326 else 327 rm -f "$tmpdepfile1" "$tmpdepfile2" 328 exit $stat 329 fi 330 331 for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" 332 do 333 test -f "$tmpdepfile" && break 334 done 335 if test -f "$tmpdepfile"; then 336 sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile" 337 # Add `dependent.h:' lines. 338 sed -ne '2,${ 339 s/^ *// 340 s/ \\*$// 341 s/$/:/ 342 p 343 }' "$tmpdepfile" >> "$depfile" 344 else 345 echo "#dummy" > "$depfile" 346 fi 347 rm -f "$tmpdepfile" "$tmpdepfile2" 348 ;; 349 350 tru64) 351 # The Tru64 compiler uses -MD to generate dependencies as a side 352 # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'. 353 # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put 354 # dependencies in `foo.d' instead, so we check for that too. 355 # Subdirectories are respected. 356 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'` 357 test "x$dir" = "x$object" && dir= 358 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'` 359 360 if test "$libtool" = yes; then 361 # With Tru64 cc, shared objects can also be used to make a 362 # static library. This mechanism is used in libtool 1.4 series to 363 # handle both shared and static libraries in a single compilation. 364 # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d. 365 # 366 # With libtool 1.5 this exception was removed, and libtool now 367 # generates 2 separate objects for the 2 libraries. These two 368 # compilations output dependencies in $dir.libs/$base.o.d and 369 # in $dir$base.o.d. We have to check for both files, because 370 # one of the two compilations can be disabled. We should prefer 371 # $dir$base.o.d over $dir.libs/$base.o.d because the latter is 372 # automatically cleaned when .libs/ is deleted, while ignoring 373 # the former would cause a distcleancheck panic. 374 tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4 375 tmpdepfile2=$dir$base.o.d # libtool 1.5 376 tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5 377 tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504 378 "$@" -Wc,-MD 379 else 380 tmpdepfile1=$dir$base.o.d 381 tmpdepfile2=$dir$base.d 382 tmpdepfile3=$dir$base.d 383 tmpdepfile4=$dir$base.d 384 "$@" -MD 385 fi 386 387 stat=$? 388 if test $stat -eq 0; then : 389 else 390 rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4" 391 exit $stat 392 fi 393 394 for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4" 395 do 396 test -f "$tmpdepfile" && break 397 done 398 if test -f "$tmpdepfile"; then 399 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile" 400 # That's a tab and a space in the []. 401 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile" 402 else 403 echo "#dummy" > "$depfile" 404 fi 405 rm -f "$tmpdepfile" 406 ;; 407 408 #nosideeffect) 409 # This comment above is used by automake to tell side-effect 410 # dependency tracking mechanisms from slower ones. 411 412 dashmstdout) 413 # Important note: in order to support this mode, a compiler *must* 414 # always write the preprocessed file to stdout, regardless of -o. 415 "$@" || exit $? 416 417 # Remove the call to Libtool. 418 if test "$libtool" = yes; then 419 while test "X$1" != 'X--mode=compile'; do 420 shift 421 done 422 shift 423 fi 424 425 # Remove `-o $object'. 426 IFS=" " 427 for arg 428 do 429 case $arg in 430 -o) 431 shift 432 ;; 433 $object) 434 shift 435 ;; 436 *) 437 set fnord "$@" "$arg" 438 shift # fnord 439 shift # $arg 440 ;; 441 esac 442 done 443 444 test -z "$dashmflag" && dashmflag=-M 445 # Require at least two characters before searching for `:' 446 # in the target name. This is to cope with DOS-style filenames: 447 # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise. 448 "$@" $dashmflag | 449 sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile" 450 rm -f "$depfile" 451 cat < "$tmpdepfile" > "$depfile" 452 tr ' ' ' 453 ' < "$tmpdepfile" | \ 454 ## Some versions of the HPUX 10.20 sed can't process this invocation 455 ## correctly. Breaking it into two sed invocations is a workaround. 456 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" 457 rm -f "$tmpdepfile" 458 ;; 459 460 dashXmstdout) 461 # This case only exists to satisfy depend.m4. It is never actually 462 # run, as this mode is specially recognized in the preamble. 463 exit 1 464 ;; 465 466 makedepend) 467 "$@" || exit $? 468 # Remove any Libtool call 469 if test "$libtool" = yes; then 470 while test "X$1" != 'X--mode=compile'; do 471 shift 472 done 473 shift 474 fi 475 # X makedepend 476 shift 477 cleared=no eat=no 478 for arg 479 do 480 case $cleared in 481 no) 482 set ""; shift 483 cleared=yes ;; 484 esac 485 if test $eat = yes; then 486 eat=no 487 continue 488 fi 489 case "$arg" in 490 -D*|-I*) 491 set fnord "$@" "$arg"; shift ;; 492 # Strip any option that makedepend may not understand. Remove 493 # the object too, otherwise makedepend will parse it as a source file. 494 -arch) 495 eat=yes ;; 496 -*|$object) 497 ;; 498 *) 499 set fnord "$@" "$arg"; shift ;; 500 esac 501 done 502 obj_suffix=`echo "$object" | sed 's/^.*\././'` 503 touch "$tmpdepfile" 504 ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@" 505 rm -f "$depfile" 506 cat < "$tmpdepfile" > "$depfile" 507 sed '1,2d' "$tmpdepfile" | tr ' ' ' 508 ' | \ 509 ## Some versions of the HPUX 10.20 sed can't process this invocation 510 ## correctly. Breaking it into two sed invocations is a workaround. 511 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" 512 rm -f "$tmpdepfile" "$tmpdepfile".bak 513 ;; 514 515 cpp) 516 # Important note: in order to support this mode, a compiler *must* 517 # always write the preprocessed file to stdout. 518 "$@" || exit $? 519 520 # Remove the call to Libtool. 521 if test "$libtool" = yes; then 522 while test "X$1" != 'X--mode=compile'; do 523 shift 524 done 525 shift 526 fi 527 528 # Remove `-o $object'. 529 IFS=" " 530 for arg 531 do 532 case $arg in 533 -o) 534 shift 535 ;; 536 $object) 537 shift 538 ;; 539 *) 540 set fnord "$@" "$arg" 541 shift # fnord 542 shift # $arg 543 ;; 544 esac 545 done 546 547 "$@" -E | 548 sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ 549 -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' | 550 sed '$ s: \\$::' > "$tmpdepfile" 551 rm -f "$depfile" 552 echo "$object : \\" > "$depfile" 553 cat < "$tmpdepfile" >> "$depfile" 554 sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" 555 rm -f "$tmpdepfile" 556 ;; 557 558 msvisualcpp) 559 # Important note: in order to support this mode, a compiler *must* 560 # always write the preprocessed file to stdout. 561 "$@" || exit $? 562 563 # Remove the call to Libtool. 564 if test "$libtool" = yes; then 565 while test "X$1" != 'X--mode=compile'; do 566 shift 567 done 568 shift 569 fi 570 571 IFS=" " 572 for arg 573 do 574 case "$arg" in 575 -o) 576 shift 577 ;; 578 $object) 579 shift 580 ;; 581 "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") 582 set fnord "$@" 583 shift 584 shift 585 ;; 586 *) 587 set fnord "$@" "$arg" 588 shift 589 shift 590 ;; 591 esac 592 done 593 "$@" -E 2>/dev/null | 594 sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile" 595 rm -f "$depfile" 596 echo "$object : \\" > "$depfile" 597 sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile" 598 echo " " >> "$depfile" 599 sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile" 600 rm -f "$tmpdepfile" 601 ;; 602 603 msvcmsys) 604 # This case exists only to let depend.m4 do its work. It works by 605 # looking at the text of this script. This case will never be run, 606 # since it is checked for above. 607 exit 1 608 ;; 609 610 none) 611 exec "$@" 612 ;; 613 614 *) 615 echo "Unknown depmode $depmode" 1>&2 616 exit 1 617 ;; 618 esac 619 620 exit 0 621 622 # Local Variables: 623 # mode: shell-script 624 # sh-indentation: 2 625 # eval: (add-hook 'write-file-hooks 'time-stamp) 626 # time-stamp-start: "scriptversion=" 627 # time-stamp-format: "%:y-%02m-%02d.%02H" 628 # time-stamp-time-zone: "UTC" 629 # time-stamp-end: "; # UTC" 630 # End: