1#! /bin/sh 2# depcomp - compile a program generating dependencies as side-effects 3 4scriptversion=2004-05-31.23 5 6# Copyright (C) 1999, 2000, 2003, 2004 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 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 0 54 ;; 55 -v | --v*) 56 echo "depcomp $scriptversion" 57 exit 0 58 ;; 59esac 60 61if test -z "$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 279tru64) 280 # The Tru64 compiler uses -MD to generate dependencies as a side 281 # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'. 282 # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put 283 # dependencies in `foo.d' instead, so we check for that too. 284 # Subdirectories are respected. 285 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'` 286 test "x$dir" = "x$object" && dir= 287 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'` 288 289 if test "$libtool" = yes; then 290 # Dependencies are output in .lo.d with libtool 1.4. 291 # With libtool 1.5 they are output both in $dir.libs/$base.o.d 292 # and in $dir.libs/$base.o.d and $dir$base.o.d. We process the 293 # latter, because the former will be cleaned when $dir.libs is 294 # erased. 295 tmpdepfile1="$dir.libs/$base.lo.d" 296 tmpdepfile2="$dir$base.o.d" 297 tmpdepfile3="$dir.libs/$base.d" 298 "$@" -Wc,-MD 299 else 300 tmpdepfile1="$dir$base.o.d" 301 tmpdepfile2="$dir$base.d" 302 tmpdepfile3="$dir$base.d" 303 "$@" -MD 304 fi 305 306 stat=$? 307 if test $stat -eq 0; then : 308 else 309 rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" 310 exit $stat 311 fi 312 313 if test -f "$tmpdepfile1"; then 314 tmpdepfile="$tmpdepfile1" 315 elif test -f "$tmpdepfile2"; then 316 tmpdepfile="$tmpdepfile2" 317 else 318 tmpdepfile="$tmpdepfile3" 319 fi 320 if test -f "$tmpdepfile"; then 321 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile" 322 # That's a tab and a space in the []. 323 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile" 324 else 325 echo "#dummy" > "$depfile" 326 fi 327 rm -f "$tmpdepfile" 328 ;; 329 330#nosideeffect) 331 # This comment above is used by automake to tell side-effect 332 # dependency tracking mechanisms from slower ones. 333 334dashmstdout) 335 # Important note: in order to support this mode, a compiler *must* 336 # always write the preprocessed file to stdout, regardless of -o. 337 "$@" || exit $? 338 339 # Remove the call to Libtool. 340 if test "$libtool" = yes; then 341 while test $1 != '--mode=compile'; do 342 shift 343 done 344 shift 345 fi 346 347 # Remove `-o $object'. 348 IFS=" " 349 for arg 350 do 351 case $arg in 352 -o) 353 shift 354 ;; 355 $object) 356 shift 357 ;; 358 *) 359 set fnord "$@" "$arg" 360 shift # fnord 361 shift # $arg 362 ;; 363 esac 364 done 365 366 test -z "$dashmflag" && dashmflag=-M 367 # Require at least two characters before searching for `:' 368 # in the target name. This is to cope with DOS-style filenames: 369 # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise. 370 "$@" $dashmflag | 371 sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile" 372 rm -f "$depfile" 373 cat < "$tmpdepfile" > "$depfile" 374 tr ' ' ' 375' < "$tmpdepfile" | \ 376## Some versions of the HPUX 10.20 sed can't process this invocation 377## correctly. Breaking it into two sed invocations is a workaround. 378 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" 379 rm -f "$tmpdepfile" 380 ;; 381 382dashXmstdout) 383 # This case only exists to satisfy depend.m4. It is never actually 384 # run, as this mode is specially recognized in the preamble. 385 exit 1 386 ;; 387 388makedepend) 389 "$@" || exit $? 390 # Remove any Libtool call 391 if test "$libtool" = yes; then 392 while test $1 != '--mode=compile'; do 393 shift 394 done 395 shift 396 fi 397 # X makedepend 398 shift 399 cleared=no 400 for arg in "$@"; do 401 case $cleared in 402 no) 403 set ""; shift 404 cleared=yes ;; 405 esac 406 case "$arg" in 407 -D*|-I*) 408 set fnord "$@" "$arg"; shift ;; 409 # Strip any option that makedepend may not understand. Remove 410 # the object too, otherwise makedepend will parse it as a source file. 411 -*|$object) 412 ;; 413 *) 414 set fnord "$@" "$arg"; shift ;; 415 esac 416 done 417 obj_suffix="`echo $object | sed 's/^.*\././'`" 418 touch "$tmpdepfile" 419 ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@" 420 rm -f "$depfile" 421 cat < "$tmpdepfile" > "$depfile" 422 sed '1,2d' "$tmpdepfile" | tr ' ' ' 423' | \ 424## Some versions of the HPUX 10.20 sed can't process this invocation 425## correctly. Breaking it into two sed invocations is a workaround. 426 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" 427 rm -f "$tmpdepfile" "$tmpdepfile".bak 428 ;; 429 430cpp) 431 # Important note: in order to support this mode, a compiler *must* 432 # always write the preprocessed file to stdout. 433 "$@" || exit $? 434 435 # Remove the call to Libtool. 436 if test "$libtool" = yes; then 437 while test $1 != '--mode=compile'; do 438 shift 439 done 440 shift 441 fi 442 443 # Remove `-o $object'. 444 IFS=" " 445 for arg 446 do 447 case $arg in 448 -o) 449 shift 450 ;; 451 $object) 452 shift 453 ;; 454 *) 455 set fnord "$@" "$arg" 456 shift # fnord 457 shift # $arg 458 ;; 459 esac 460 done 461 462 "$@" -E | 463 sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' | 464 sed '$ s: \\$::' > "$tmpdepfile" 465 rm -f "$depfile" 466 echo "$object : \\" > "$depfile" 467 cat < "$tmpdepfile" >> "$depfile" 468 sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" 469 rm -f "$tmpdepfile" 470 ;; 471 472msvisualcpp) 473 # Important note: in order to support this mode, a compiler *must* 474 # always write the preprocessed file to stdout, regardless of -o, 475 # because we must use -o when running libtool. 476 "$@" || exit $? 477 IFS=" " 478 for arg 479 do 480 case "$arg" in 481 "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") 482 set fnord "$@" 483 shift 484 shift 485 ;; 486 *) 487 set fnord "$@" "$arg" 488 shift 489 shift 490 ;; 491 esac 492 done 493 "$@" -E | 494 sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile" 495 rm -f "$depfile" 496 echo "$object : \\" > "$depfile" 497 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile" 498 echo " " >> "$depfile" 499 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile" 500 rm -f "$tmpdepfile" 501 ;; 502 503none) 504 exec "$@" 505 ;; 506 507*) 508 echo "Unknown depmode $depmode" 1>&2 509 exit 1 510 ;; 511esac 512 513exit 0 514 515# Local Variables: 516# mode: shell-script 517# sh-indentation: 2 518# eval: (add-hook 'write-file-hooks 'time-stamp) 519# time-stamp-start: "scriptversion=" 520# time-stamp-format: "%:y-%02m-%02d.%02H" 521# time-stamp-end: "$" 522# End: 523