1 1.1 mrg #! /bin/sh 2 1.1 mrg # depcomp - compile a program generating dependencies as side-effects 3 1.1 mrg 4 1.5 mrg scriptversion=2013-05-30.07; # UTC 5 1.1 mrg 6 1.5 mrg # Copyright (C) 1999-2014 Free Software Foundation, Inc. 7 1.1 mrg 8 1.1 mrg # This program is free software; you can redistribute it and/or modify 9 1.1 mrg # it under the terms of the GNU General Public License as published by 10 1.1 mrg # the Free Software Foundation; either version 2, or (at your option) 11 1.1 mrg # any later version. 12 1.1 mrg 13 1.1 mrg # This program is distributed in the hope that it will be useful, 14 1.1 mrg # but WITHOUT ANY WARRANTY; without even the implied warranty of 15 1.1 mrg # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 1.1 mrg # GNU General Public License for more details. 17 1.1 mrg 18 1.1 mrg # You should have received a copy of the GNU General Public License 19 1.1 mrg # along with this program. If not, see <http://www.gnu.org/licenses/>. 20 1.1 mrg 21 1.1 mrg # As a special exception to the GNU General Public License, if you 22 1.1 mrg # distribute this file as part of a program that contains a 23 1.1 mrg # configuration script generated by Autoconf, you may include it under 24 1.1 mrg # the same distribution terms that you use for the rest of that program. 25 1.1 mrg 26 1.1 mrg # Originally written by Alexandre Oliva <oliva (at] dcc.unicamp.br>. 27 1.1 mrg 28 1.1 mrg case $1 in 29 1.1 mrg '') 30 1.5 mrg echo "$0: No command. Try '$0 --help' for more information." 1>&2 31 1.5 mrg exit 1; 32 1.5 mrg ;; 33 1.1 mrg -h | --h*) 34 1.1 mrg cat <<\EOF 35 1.1 mrg Usage: depcomp [--help] [--version] PROGRAM [ARGS] 36 1.1 mrg 37 1.1 mrg Run PROGRAMS ARGS to compile a file, generating dependencies 38 1.1 mrg as side-effects. 39 1.1 mrg 40 1.1 mrg Environment variables: 41 1.1 mrg depmode Dependency tracking mode. 42 1.5 mrg source Source file read by 'PROGRAMS ARGS'. 43 1.5 mrg object Object file output by 'PROGRAMS ARGS'. 44 1.1 mrg DEPDIR directory where to store dependencies. 45 1.1 mrg depfile Dependency file to output. 46 1.5 mrg tmpdepfile Temporary file to use when outputting dependencies. 47 1.1 mrg libtool Whether libtool is used (yes/no). 48 1.1 mrg 49 1.1 mrg Report bugs to <bug-automake@gnu.org>. 50 1.1 mrg EOF 51 1.1 mrg exit $? 52 1.1 mrg ;; 53 1.1 mrg -v | --v*) 54 1.1 mrg echo "depcomp $scriptversion" 55 1.1 mrg exit $? 56 1.1 mrg ;; 57 1.1 mrg esac 58 1.1 mrg 59 1.5 mrg # Get the directory component of the given path, and save it in the 60 1.5 mrg # global variables '$dir'. Note that this directory component will 61 1.5 mrg # be either empty or ending with a '/' character. This is deliberate. 62 1.5 mrg set_dir_from () 63 1.5 mrg { 64 1.5 mrg case $1 in 65 1.5 mrg */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;; 66 1.5 mrg *) dir=;; 67 1.5 mrg esac 68 1.5 mrg } 69 1.5 mrg 70 1.5 mrg # Get the suffix-stripped basename of the given path, and save it the 71 1.5 mrg # global variable '$base'. 72 1.5 mrg set_base_from () 73 1.5 mrg { 74 1.5 mrg base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'` 75 1.5 mrg } 76 1.5 mrg 77 1.5 mrg # If no dependency file was actually created by the compiler invocation, 78 1.5 mrg # we still have to create a dummy depfile, to avoid errors with the 79 1.5 mrg # Makefile "include basename.Plo" scheme. 80 1.5 mrg make_dummy_depfile () 81 1.5 mrg { 82 1.5 mrg echo "#dummy" > "$depfile" 83 1.5 mrg } 84 1.5 mrg 85 1.5 mrg # Factor out some common post-processing of the generated depfile. 86 1.5 mrg # Requires the auxiliary global variable '$tmpdepfile' to be set. 87 1.5 mrg aix_post_process_depfile () 88 1.5 mrg { 89 1.5 mrg # If the compiler actually managed to produce a dependency file, 90 1.5 mrg # post-process it. 91 1.5 mrg if test -f "$tmpdepfile"; then 92 1.5 mrg # Each line is of the form 'foo.o: dependency.h'. 93 1.5 mrg # Do two passes, one to just change these to 94 1.5 mrg # $object: dependency.h 95 1.5 mrg # and one to simply output 96 1.5 mrg # dependency.h: 97 1.5 mrg # which is needed to avoid the deleted-header problem. 98 1.5 mrg { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile" 99 1.5 mrg sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile" 100 1.5 mrg } > "$depfile" 101 1.5 mrg rm -f "$tmpdepfile" 102 1.5 mrg else 103 1.5 mrg make_dummy_depfile 104 1.5 mrg fi 105 1.5 mrg } 106 1.5 mrg 107 1.5 mrg # A tabulation character. 108 1.5 mrg tab=' ' 109 1.5 mrg # A newline character. 110 1.5 mrg nl=' 111 1.5 mrg ' 112 1.5 mrg # Character ranges might be problematic outside the C locale. 113 1.5 mrg # These definitions help. 114 1.5 mrg upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ 115 1.5 mrg lower=abcdefghijklmnopqrstuvwxyz 116 1.5 mrg digits=0123456789 117 1.5 mrg alpha=${upper}${lower} 118 1.5 mrg 119 1.1 mrg if test -z "$depmode" || test -z "$source" || test -z "$object"; then 120 1.1 mrg echo "depcomp: Variables source, object and depmode must be set" 1>&2 121 1.1 mrg exit 1 122 1.1 mrg fi 123 1.1 mrg 124 1.1 mrg # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. 125 1.1 mrg depfile=${depfile-`echo "$object" | 126 1.1 mrg sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} 127 1.1 mrg tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} 128 1.1 mrg 129 1.1 mrg rm -f "$tmpdepfile" 130 1.1 mrg 131 1.5 mrg # Avoid interferences from the environment. 132 1.5 mrg gccflag= dashmflag= 133 1.5 mrg 134 1.1 mrg # Some modes work just like other modes, but use different flags. We 135 1.1 mrg # parameterize here, but still list the modes in the big case below, 136 1.1 mrg # to make depend.m4 easier to write. Note that we *cannot* use a case 137 1.1 mrg # here, because this file can only contain one case statement. 138 1.1 mrg if test "$depmode" = hp; then 139 1.1 mrg # HP compiler uses -M and no extra arg. 140 1.1 mrg gccflag=-M 141 1.1 mrg depmode=gcc 142 1.1 mrg fi 143 1.1 mrg 144 1.1 mrg if test "$depmode" = dashXmstdout; then 145 1.5 mrg # This is just like dashmstdout with a different argument. 146 1.5 mrg dashmflag=-xM 147 1.5 mrg depmode=dashmstdout 148 1.1 mrg fi 149 1.1 mrg 150 1.1 mrg cygpath_u="cygpath -u -f -" 151 1.1 mrg if test "$depmode" = msvcmsys; then 152 1.5 mrg # This is just like msvisualcpp but w/o cygpath translation. 153 1.5 mrg # Just convert the backslash-escaped backslashes to single forward 154 1.5 mrg # slashes to satisfy depend.m4 155 1.5 mrg cygpath_u='sed s,\\\\,/,g' 156 1.5 mrg depmode=msvisualcpp 157 1.5 mrg fi 158 1.5 mrg 159 1.5 mrg if test "$depmode" = msvc7msys; then 160 1.5 mrg # This is just like msvc7 but w/o cygpath translation. 161 1.5 mrg # Just convert the backslash-escaped backslashes to single forward 162 1.5 mrg # slashes to satisfy depend.m4 163 1.5 mrg cygpath_u='sed s,\\\\,/,g' 164 1.5 mrg depmode=msvc7 165 1.5 mrg fi 166 1.5 mrg 167 1.5 mrg if test "$depmode" = xlc; then 168 1.5 mrg # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information. 169 1.5 mrg gccflag=-qmakedep=gcc,-MF 170 1.5 mrg depmode=gcc 171 1.1 mrg fi 172 1.1 mrg 173 1.1 mrg case "$depmode" in 174 1.1 mrg gcc3) 175 1.1 mrg ## gcc 3 implements dependency tracking that does exactly what 176 1.1 mrg ## we want. Yay! Note: for some reason libtool 1.4 doesn't like 177 1.1 mrg ## it if -MD -MP comes after the -MF stuff. Hmm. 178 1.1 mrg ## Unfortunately, FreeBSD c89 acceptance of flags depends upon 179 1.1 mrg ## the command line argument order; so add the flags where they 180 1.1 mrg ## appear in depend2.am. Note that the slowdown incurred here 181 1.1 mrg ## affects only configure: in makefiles, %FASTDEP% shortcuts this. 182 1.1 mrg for arg 183 1.1 mrg do 184 1.1 mrg case $arg in 185 1.1 mrg -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;; 186 1.1 mrg *) set fnord "$@" "$arg" ;; 187 1.1 mrg esac 188 1.1 mrg shift # fnord 189 1.1 mrg shift # $arg 190 1.1 mrg done 191 1.1 mrg "$@" 192 1.1 mrg stat=$? 193 1.5 mrg if test $stat -ne 0; then 194 1.1 mrg rm -f "$tmpdepfile" 195 1.1 mrg exit $stat 196 1.1 mrg fi 197 1.1 mrg mv "$tmpdepfile" "$depfile" 198 1.1 mrg ;; 199 1.1 mrg 200 1.1 mrg gcc) 201 1.5 mrg ## Note that this doesn't just cater to obsosete pre-3.x GCC compilers. 202 1.5 mrg ## but also to in-use compilers like IMB xlc/xlC and the HP C compiler. 203 1.5 mrg ## (see the conditional assignment to $gccflag above). 204 1.1 mrg ## There are various ways to get dependency output from gcc. Here's 205 1.1 mrg ## why we pick this rather obscure method: 206 1.1 mrg ## - Don't want to use -MD because we'd like the dependencies to end 207 1.1 mrg ## up in a subdir. Having to rename by hand is ugly. 208 1.1 mrg ## (We might end up doing this anyway to support other compilers.) 209 1.1 mrg ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like 210 1.5 mrg ## -MM, not -M (despite what the docs say). Also, it might not be 211 1.5 mrg ## supported by the other compilers which use the 'gcc' depmode. 212 1.1 mrg ## - Using -M directly means running the compiler twice (even worse 213 1.1 mrg ## than renaming). 214 1.1 mrg if test -z "$gccflag"; then 215 1.1 mrg gccflag=-MD, 216 1.1 mrg fi 217 1.1 mrg "$@" -Wp,"$gccflag$tmpdepfile" 218 1.1 mrg stat=$? 219 1.5 mrg if test $stat -ne 0; then 220 1.1 mrg rm -f "$tmpdepfile" 221 1.1 mrg exit $stat 222 1.1 mrg fi 223 1.1 mrg rm -f "$depfile" 224 1.1 mrg echo "$object : \\" > "$depfile" 225 1.5 mrg # The second -e expression handles DOS-style file names with drive 226 1.5 mrg # letters. 227 1.1 mrg sed -e 's/^[^:]*: / /' \ 228 1.1 mrg -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" 229 1.5 mrg ## This next piece of magic avoids the "deleted header file" problem. 230 1.1 mrg ## The problem is that when a header file which appears in a .P file 231 1.1 mrg ## is deleted, the dependency causes make to die (because there is 232 1.1 mrg ## typically no way to rebuild the header). We avoid this by adding 233 1.1 mrg ## dummy dependencies for each header file. Too bad gcc doesn't do 234 1.1 mrg ## this for us directly. 235 1.5 mrg ## Some versions of gcc put a space before the ':'. On the theory 236 1.1 mrg ## that the space means something, we add a space to the output as 237 1.5 mrg ## well. hp depmode also adds that space, but also prefixes the VPATH 238 1.5 mrg ## to the object. Take care to not repeat it in the output. 239 1.1 mrg ## Some versions of the HPUX 10.20 sed can't process this invocation 240 1.1 mrg ## correctly. Breaking it into two sed invocations is a workaround. 241 1.5 mrg tr ' ' "$nl" < "$tmpdepfile" \ 242 1.5 mrg | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \ 243 1.5 mrg | sed -e 's/$/ :/' >> "$depfile" 244 1.1 mrg rm -f "$tmpdepfile" 245 1.1 mrg ;; 246 1.1 mrg 247 1.1 mrg hp) 248 1.1 mrg # This case exists only to let depend.m4 do its work. It works by 249 1.1 mrg # looking at the text of this script. This case will never be run, 250 1.1 mrg # since it is checked for above. 251 1.1 mrg exit 1 252 1.1 mrg ;; 253 1.1 mrg 254 1.5 mrg xlc) 255 1.5 mrg # This case exists only to let depend.m4 do its work. It works by 256 1.5 mrg # looking at the text of this script. This case will never be run, 257 1.5 mrg # since it is checked for above. 258 1.5 mrg exit 1 259 1.1 mrg ;; 260 1.1 mrg 261 1.1 mrg aix) 262 1.1 mrg # The C for AIX Compiler uses -M and outputs the dependencies 263 1.1 mrg # in a .u file. In older versions, this file always lives in the 264 1.5 mrg # current directory. Also, the AIX compiler puts '$object:' at the 265 1.1 mrg # start of each line; $object doesn't have directory information. 266 1.1 mrg # Version 6 uses the directory in both cases. 267 1.5 mrg set_dir_from "$object" 268 1.5 mrg set_base_from "$object" 269 1.1 mrg if test "$libtool" = yes; then 270 1.1 mrg tmpdepfile1=$dir$base.u 271 1.1 mrg tmpdepfile2=$base.u 272 1.1 mrg tmpdepfile3=$dir.libs/$base.u 273 1.1 mrg "$@" -Wc,-M 274 1.1 mrg else 275 1.1 mrg tmpdepfile1=$dir$base.u 276 1.1 mrg tmpdepfile2=$dir$base.u 277 1.1 mrg tmpdepfile3=$dir$base.u 278 1.1 mrg "$@" -M 279 1.1 mrg fi 280 1.1 mrg stat=$? 281 1.5 mrg if test $stat -ne 0; then 282 1.1 mrg rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" 283 1.1 mrg exit $stat 284 1.1 mrg fi 285 1.1 mrg 286 1.1 mrg for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" 287 1.1 mrg do 288 1.1 mrg test -f "$tmpdepfile" && break 289 1.1 mrg done 290 1.5 mrg aix_post_process_depfile 291 1.5 mrg ;; 292 1.5 mrg 293 1.5 mrg tcc) 294 1.5 mrg # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26 295 1.5 mrg # FIXME: That version still under development at the moment of writing. 296 1.5 mrg # Make that this statement remains true also for stable, released 297 1.5 mrg # versions. 298 1.5 mrg # It will wrap lines (doesn't matter whether long or short) with a 299 1.5 mrg # trailing '\', as in: 300 1.5 mrg # 301 1.5 mrg # foo.o : \ 302 1.5 mrg # foo.c \ 303 1.5 mrg # foo.h \ 304 1.5 mrg # 305 1.5 mrg # It will put a trailing '\' even on the last line, and will use leading 306 1.5 mrg # spaces rather than leading tabs (at least since its commit 0394caf7 307 1.5 mrg # "Emit spaces for -MD"). 308 1.5 mrg "$@" -MD -MF "$tmpdepfile" 309 1.5 mrg stat=$? 310 1.5 mrg if test $stat -ne 0; then 311 1.5 mrg rm -f "$tmpdepfile" 312 1.5 mrg exit $stat 313 1.1 mrg fi 314 1.5 mrg rm -f "$depfile" 315 1.5 mrg # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'. 316 1.5 mrg # We have to change lines of the first kind to '$object: \'. 317 1.5 mrg sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile" 318 1.5 mrg # And for each line of the second kind, we have to emit a 'dep.h:' 319 1.5 mrg # dummy dependency, to avoid the deleted-header problem. 320 1.5 mrg sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile" 321 1.1 mrg rm -f "$tmpdepfile" 322 1.1 mrg ;; 323 1.1 mrg 324 1.5 mrg ## The order of this option in the case statement is important, since the 325 1.5 mrg ## shell code in configure will try each of these formats in the order 326 1.5 mrg ## listed in this file. A plain '-MD' option would be understood by many 327 1.5 mrg ## compilers, so we must ensure this comes after the gcc and icc options. 328 1.5 mrg pgcc) 329 1.5 mrg # Portland's C compiler understands '-MD'. 330 1.5 mrg # Will always output deps to 'file.d' where file is the root name of the 331 1.5 mrg # source file under compilation, even if file resides in a subdirectory. 332 1.5 mrg # The object file name does not affect the name of the '.d' file. 333 1.5 mrg # pgcc 10.2 will output 334 1.1 mrg # foo.o: sub/foo.c sub/foo.h 335 1.5 mrg # and will wrap long lines using '\' : 336 1.1 mrg # foo.o: sub/foo.c ... \ 337 1.1 mrg # sub/foo.h ... \ 338 1.1 mrg # ... 339 1.5 mrg set_dir_from "$object" 340 1.5 mrg # Use the source, not the object, to determine the base name, since 341 1.5 mrg # that's sadly what pgcc will do too. 342 1.5 mrg set_base_from "$source" 343 1.5 mrg tmpdepfile=$base.d 344 1.5 mrg 345 1.5 mrg # For projects that build the same source file twice into different object 346 1.5 mrg # files, the pgcc approach of using the *source* file root name can cause 347 1.5 mrg # problems in parallel builds. Use a locking strategy to avoid stomping on 348 1.5 mrg # the same $tmpdepfile. 349 1.5 mrg lockdir=$base.d-lock 350 1.5 mrg trap " 351 1.5 mrg echo '$0: caught signal, cleaning up...' >&2 352 1.5 mrg rmdir '$lockdir' 353 1.5 mrg exit 1 354 1.5 mrg " 1 2 13 15 355 1.5 mrg numtries=100 356 1.5 mrg i=$numtries 357 1.5 mrg while test $i -gt 0; do 358 1.5 mrg # mkdir is a portable test-and-set. 359 1.5 mrg if mkdir "$lockdir" 2>/dev/null; then 360 1.5 mrg # This process acquired the lock. 361 1.5 mrg "$@" -MD 362 1.5 mrg stat=$? 363 1.5 mrg # Release the lock. 364 1.5 mrg rmdir "$lockdir" 365 1.5 mrg break 366 1.5 mrg else 367 1.5 mrg # If the lock is being held by a different process, wait 368 1.5 mrg # until the winning process is done or we timeout. 369 1.5 mrg while test -d "$lockdir" && test $i -gt 0; do 370 1.5 mrg sleep 1 371 1.5 mrg i=`expr $i - 1` 372 1.5 mrg done 373 1.5 mrg fi 374 1.5 mrg i=`expr $i - 1` 375 1.5 mrg done 376 1.5 mrg trap - 1 2 13 15 377 1.5 mrg if test $i -le 0; then 378 1.5 mrg echo "$0: failed to acquire lock after $numtries attempts" >&2 379 1.5 mrg echo "$0: check lockdir '$lockdir'" >&2 380 1.5 mrg exit 1 381 1.5 mrg fi 382 1.1 mrg 383 1.5 mrg if test $stat -ne 0; then 384 1.1 mrg rm -f "$tmpdepfile" 385 1.1 mrg exit $stat 386 1.1 mrg fi 387 1.1 mrg rm -f "$depfile" 388 1.1 mrg # Each line is of the form `foo.o: dependent.h', 389 1.1 mrg # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. 390 1.1 mrg # Do two passes, one to just change these to 391 1.1 mrg # `$object: dependent.h' and one to simply `dependent.h:'. 392 1.1 mrg sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" 393 1.1 mrg # Some versions of the HPUX 10.20 sed can't process this invocation 394 1.1 mrg # correctly. Breaking it into two sed invocations is a workaround. 395 1.5 mrg sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \ 396 1.5 mrg | sed -e 's/$/ :/' >> "$depfile" 397 1.1 mrg rm -f "$tmpdepfile" 398 1.1 mrg ;; 399 1.1 mrg 400 1.1 mrg hp2) 401 1.1 mrg # The "hp" stanza above does not work with aCC (C++) and HP's ia64 402 1.1 mrg # compilers, which have integrated preprocessors. The correct option 403 1.1 mrg # to use with these is +Maked; it writes dependencies to a file named 404 1.1 mrg # 'foo.d', which lands next to the object file, wherever that 405 1.1 mrg # happens to be. 406 1.1 mrg # Much of this is similar to the tru64 case; see comments there. 407 1.5 mrg set_dir_from "$object" 408 1.5 mrg set_base_from "$object" 409 1.1 mrg if test "$libtool" = yes; then 410 1.1 mrg tmpdepfile1=$dir$base.d 411 1.1 mrg tmpdepfile2=$dir.libs/$base.d 412 1.1 mrg "$@" -Wc,+Maked 413 1.1 mrg else 414 1.1 mrg tmpdepfile1=$dir$base.d 415 1.1 mrg tmpdepfile2=$dir$base.d 416 1.1 mrg "$@" +Maked 417 1.1 mrg fi 418 1.1 mrg stat=$? 419 1.5 mrg if test $stat -ne 0; then 420 1.1 mrg rm -f "$tmpdepfile1" "$tmpdepfile2" 421 1.1 mrg exit $stat 422 1.1 mrg fi 423 1.1 mrg 424 1.1 mrg for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" 425 1.1 mrg do 426 1.1 mrg test -f "$tmpdepfile" && break 427 1.1 mrg done 428 1.1 mrg if test -f "$tmpdepfile"; then 429 1.5 mrg sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile" 430 1.5 mrg # Add 'dependent.h:' lines. 431 1.1 mrg sed -ne '2,${ 432 1.5 mrg s/^ *// 433 1.5 mrg s/ \\*$// 434 1.5 mrg s/$/:/ 435 1.5 mrg p 436 1.5 mrg }' "$tmpdepfile" >> "$depfile" 437 1.1 mrg else 438 1.5 mrg make_dummy_depfile 439 1.1 mrg fi 440 1.1 mrg rm -f "$tmpdepfile" "$tmpdepfile2" 441 1.1 mrg ;; 442 1.1 mrg 443 1.1 mrg tru64) 444 1.5 mrg # The Tru64 compiler uses -MD to generate dependencies as a side 445 1.5 mrg # effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'. 446 1.5 mrg # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put 447 1.5 mrg # dependencies in 'foo.d' instead, so we check for that too. 448 1.5 mrg # Subdirectories are respected. 449 1.5 mrg set_dir_from "$object" 450 1.5 mrg set_base_from "$object" 451 1.5 mrg 452 1.5 mrg if test "$libtool" = yes; then 453 1.5 mrg # Libtool generates 2 separate objects for the 2 libraries. These 454 1.5 mrg # two compilations output dependencies in $dir.libs/$base.o.d and 455 1.5 mrg # in $dir$base.o.d. We have to check for both files, because 456 1.5 mrg # one of the two compilations can be disabled. We should prefer 457 1.5 mrg # $dir$base.o.d over $dir.libs/$base.o.d because the latter is 458 1.5 mrg # automatically cleaned when .libs/ is deleted, while ignoring 459 1.5 mrg # the former would cause a distcleancheck panic. 460 1.5 mrg tmpdepfile1=$dir$base.o.d # libtool 1.5 461 1.5 mrg tmpdepfile2=$dir.libs/$base.o.d # Likewise. 462 1.5 mrg tmpdepfile3=$dir.libs/$base.d # Compaq CCC V6.2-504 463 1.5 mrg "$@" -Wc,-MD 464 1.5 mrg else 465 1.5 mrg tmpdepfile1=$dir$base.d 466 1.5 mrg tmpdepfile2=$dir$base.d 467 1.5 mrg tmpdepfile3=$dir$base.d 468 1.5 mrg "$@" -MD 469 1.5 mrg fi 470 1.5 mrg 471 1.5 mrg stat=$? 472 1.5 mrg if test $stat -ne 0; then 473 1.5 mrg rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" 474 1.5 mrg exit $stat 475 1.5 mrg fi 476 1.5 mrg 477 1.5 mrg for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" 478 1.5 mrg do 479 1.5 mrg test -f "$tmpdepfile" && break 480 1.5 mrg done 481 1.5 mrg # Same post-processing that is required for AIX mode. 482 1.5 mrg aix_post_process_depfile 483 1.5 mrg ;; 484 1.5 mrg 485 1.5 mrg msvc7) 486 1.5 mrg if test "$libtool" = yes; then 487 1.5 mrg showIncludes=-Wc,-showIncludes 488 1.5 mrg else 489 1.5 mrg showIncludes=-showIncludes 490 1.5 mrg fi 491 1.5 mrg "$@" $showIncludes > "$tmpdepfile" 492 1.5 mrg stat=$? 493 1.5 mrg grep -v '^Note: including file: ' "$tmpdepfile" 494 1.5 mrg if test $stat -ne 0; then 495 1.5 mrg rm -f "$tmpdepfile" 496 1.5 mrg exit $stat 497 1.5 mrg fi 498 1.5 mrg rm -f "$depfile" 499 1.5 mrg echo "$object : \\" > "$depfile" 500 1.5 mrg # The first sed program below extracts the file names and escapes 501 1.5 mrg # backslashes for cygpath. The second sed program outputs the file 502 1.5 mrg # name when reading, but also accumulates all include files in the 503 1.5 mrg # hold buffer in order to output them again at the end. This only 504 1.5 mrg # works with sed implementations that can handle large buffers. 505 1.5 mrg sed < "$tmpdepfile" -n ' 506 1.5 mrg /^Note: including file: *\(.*\)/ { 507 1.5 mrg s//\1/ 508 1.5 mrg s/\\/\\\\/g 509 1.5 mrg p 510 1.5 mrg }' | $cygpath_u | sort -u | sed -n ' 511 1.5 mrg s/ /\\ /g 512 1.5 mrg s/\(.*\)/'"$tab"'\1 \\/p 513 1.5 mrg s/.\(.*\) \\/\1:/ 514 1.5 mrg H 515 1.5 mrg $ { 516 1.5 mrg s/.*/'"$tab"'/ 517 1.5 mrg G 518 1.5 mrg p 519 1.5 mrg }' >> "$depfile" 520 1.5 mrg echo >> "$depfile" # make sure the fragment doesn't end with a backslash 521 1.5 mrg rm -f "$tmpdepfile" 522 1.5 mrg ;; 523 1.1 mrg 524 1.5 mrg msvc7msys) 525 1.5 mrg # This case exists only to let depend.m4 do its work. It works by 526 1.5 mrg # looking at the text of this script. This case will never be run, 527 1.5 mrg # since it is checked for above. 528 1.5 mrg exit 1 529 1.5 mrg ;; 530 1.1 mrg 531 1.1 mrg #nosideeffect) 532 1.1 mrg # This comment above is used by automake to tell side-effect 533 1.1 mrg # dependency tracking mechanisms from slower ones. 534 1.1 mrg 535 1.1 mrg dashmstdout) 536 1.1 mrg # Important note: in order to support this mode, a compiler *must* 537 1.1 mrg # always write the preprocessed file to stdout, regardless of -o. 538 1.1 mrg "$@" || exit $? 539 1.1 mrg 540 1.1 mrg # Remove the call to Libtool. 541 1.1 mrg if test "$libtool" = yes; then 542 1.1 mrg while test "X$1" != 'X--mode=compile'; do 543 1.1 mrg shift 544 1.1 mrg done 545 1.1 mrg shift 546 1.1 mrg fi 547 1.1 mrg 548 1.5 mrg # Remove '-o $object'. 549 1.1 mrg IFS=" " 550 1.1 mrg for arg 551 1.1 mrg do 552 1.1 mrg case $arg in 553 1.1 mrg -o) 554 1.1 mrg shift 555 1.1 mrg ;; 556 1.1 mrg $object) 557 1.1 mrg shift 558 1.1 mrg ;; 559 1.1 mrg *) 560 1.1 mrg set fnord "$@" "$arg" 561 1.1 mrg shift # fnord 562 1.1 mrg shift # $arg 563 1.1 mrg ;; 564 1.1 mrg esac 565 1.1 mrg done 566 1.1 mrg 567 1.1 mrg test -z "$dashmflag" && dashmflag=-M 568 1.5 mrg # Require at least two characters before searching for ':' 569 1.1 mrg # in the target name. This is to cope with DOS-style filenames: 570 1.5 mrg # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise. 571 1.1 mrg "$@" $dashmflag | 572 1.5 mrg sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile" 573 1.1 mrg rm -f "$depfile" 574 1.1 mrg cat < "$tmpdepfile" > "$depfile" 575 1.5 mrg # Some versions of the HPUX 10.20 sed can't process this sed invocation 576 1.5 mrg # correctly. Breaking it into two sed invocations is a workaround. 577 1.5 mrg tr ' ' "$nl" < "$tmpdepfile" \ 578 1.5 mrg | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \ 579 1.5 mrg | sed -e 's/$/ :/' >> "$depfile" 580 1.1 mrg rm -f "$tmpdepfile" 581 1.1 mrg ;; 582 1.1 mrg 583 1.1 mrg dashXmstdout) 584 1.1 mrg # This case only exists to satisfy depend.m4. It is never actually 585 1.1 mrg # run, as this mode is specially recognized in the preamble. 586 1.1 mrg exit 1 587 1.1 mrg ;; 588 1.1 mrg 589 1.1 mrg makedepend) 590 1.1 mrg "$@" || exit $? 591 1.1 mrg # Remove any Libtool call 592 1.1 mrg if test "$libtool" = yes; then 593 1.1 mrg while test "X$1" != 'X--mode=compile'; do 594 1.1 mrg shift 595 1.1 mrg done 596 1.1 mrg shift 597 1.1 mrg fi 598 1.1 mrg # X makedepend 599 1.1 mrg shift 600 1.1 mrg cleared=no eat=no 601 1.1 mrg for arg 602 1.1 mrg do 603 1.1 mrg case $cleared in 604 1.1 mrg no) 605 1.1 mrg set ""; shift 606 1.1 mrg cleared=yes ;; 607 1.1 mrg esac 608 1.1 mrg if test $eat = yes; then 609 1.1 mrg eat=no 610 1.1 mrg continue 611 1.1 mrg fi 612 1.1 mrg case "$arg" in 613 1.1 mrg -D*|-I*) 614 1.1 mrg set fnord "$@" "$arg"; shift ;; 615 1.1 mrg # Strip any option that makedepend may not understand. Remove 616 1.1 mrg # the object too, otherwise makedepend will parse it as a source file. 617 1.1 mrg -arch) 618 1.1 mrg eat=yes ;; 619 1.1 mrg -*|$object) 620 1.1 mrg ;; 621 1.1 mrg *) 622 1.1 mrg set fnord "$@" "$arg"; shift ;; 623 1.1 mrg esac 624 1.1 mrg done 625 1.1 mrg obj_suffix=`echo "$object" | sed 's/^.*\././'` 626 1.1 mrg touch "$tmpdepfile" 627 1.1 mrg ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@" 628 1.1 mrg rm -f "$depfile" 629 1.5 mrg # makedepend may prepend the VPATH from the source file name to the object. 630 1.5 mrg # No need to regex-escape $object, excess matching of '.' is harmless. 631 1.5 mrg sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile" 632 1.5 mrg # Some versions of the HPUX 10.20 sed can't process the last invocation 633 1.5 mrg # correctly. Breaking it into two sed invocations is a workaround. 634 1.5 mrg sed '1,2d' "$tmpdepfile" \ 635 1.5 mrg | tr ' ' "$nl" \ 636 1.5 mrg | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \ 637 1.5 mrg | sed -e 's/$/ :/' >> "$depfile" 638 1.1 mrg rm -f "$tmpdepfile" "$tmpdepfile".bak 639 1.1 mrg ;; 640 1.1 mrg 641 1.1 mrg cpp) 642 1.1 mrg # Important note: in order to support this mode, a compiler *must* 643 1.1 mrg # always write the preprocessed file to stdout. 644 1.1 mrg "$@" || exit $? 645 1.1 mrg 646 1.1 mrg # Remove the call to Libtool. 647 1.1 mrg if test "$libtool" = yes; then 648 1.1 mrg while test "X$1" != 'X--mode=compile'; do 649 1.1 mrg shift 650 1.1 mrg done 651 1.1 mrg shift 652 1.1 mrg fi 653 1.1 mrg 654 1.5 mrg # Remove '-o $object'. 655 1.1 mrg IFS=" " 656 1.1 mrg for arg 657 1.1 mrg do 658 1.1 mrg case $arg in 659 1.1 mrg -o) 660 1.1 mrg shift 661 1.1 mrg ;; 662 1.1 mrg $object) 663 1.1 mrg shift 664 1.1 mrg ;; 665 1.1 mrg *) 666 1.1 mrg set fnord "$@" "$arg" 667 1.1 mrg shift # fnord 668 1.1 mrg shift # $arg 669 1.1 mrg ;; 670 1.1 mrg esac 671 1.1 mrg done 672 1.1 mrg 673 1.5 mrg "$@" -E \ 674 1.5 mrg | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ 675 1.5 mrg -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ 676 1.5 mrg | sed '$ s: \\$::' > "$tmpdepfile" 677 1.1 mrg rm -f "$depfile" 678 1.1 mrg echo "$object : \\" > "$depfile" 679 1.1 mrg cat < "$tmpdepfile" >> "$depfile" 680 1.1 mrg sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" 681 1.1 mrg rm -f "$tmpdepfile" 682 1.1 mrg ;; 683 1.1 mrg 684 1.1 mrg msvisualcpp) 685 1.1 mrg # Important note: in order to support this mode, a compiler *must* 686 1.1 mrg # always write the preprocessed file to stdout. 687 1.1 mrg "$@" || exit $? 688 1.1 mrg 689 1.1 mrg # Remove the call to Libtool. 690 1.1 mrg if test "$libtool" = yes; then 691 1.1 mrg while test "X$1" != 'X--mode=compile'; do 692 1.1 mrg shift 693 1.1 mrg done 694 1.1 mrg shift 695 1.1 mrg fi 696 1.1 mrg 697 1.1 mrg IFS=" " 698 1.1 mrg for arg 699 1.1 mrg do 700 1.1 mrg case "$arg" in 701 1.1 mrg -o) 702 1.1 mrg shift 703 1.1 mrg ;; 704 1.1 mrg $object) 705 1.1 mrg shift 706 1.1 mrg ;; 707 1.1 mrg "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") 708 1.5 mrg set fnord "$@" 709 1.5 mrg shift 710 1.5 mrg shift 711 1.5 mrg ;; 712 1.1 mrg *) 713 1.5 mrg set fnord "$@" "$arg" 714 1.5 mrg shift 715 1.5 mrg shift 716 1.5 mrg ;; 717 1.1 mrg esac 718 1.1 mrg done 719 1.1 mrg "$@" -E 2>/dev/null | 720 1.1 mrg sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile" 721 1.1 mrg rm -f "$depfile" 722 1.1 mrg echo "$object : \\" > "$depfile" 723 1.5 mrg sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile" 724 1.5 mrg echo "$tab" >> "$depfile" 725 1.1 mrg sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile" 726 1.1 mrg rm -f "$tmpdepfile" 727 1.1 mrg ;; 728 1.1 mrg 729 1.1 mrg msvcmsys) 730 1.1 mrg # This case exists only to let depend.m4 do its work. It works by 731 1.1 mrg # looking at the text of this script. This case will never be run, 732 1.1 mrg # since it is checked for above. 733 1.1 mrg exit 1 734 1.1 mrg ;; 735 1.1 mrg 736 1.1 mrg none) 737 1.1 mrg exec "$@" 738 1.1 mrg ;; 739 1.1 mrg 740 1.1 mrg *) 741 1.1 mrg echo "Unknown depmode $depmode" 1>&2 742 1.1 mrg exit 1 743 1.1 mrg ;; 744 1.1 mrg esac 745 1.1 mrg 746 1.1 mrg exit 0 747 1.1 mrg 748 1.1 mrg # Local Variables: 749 1.1 mrg # mode: shell-script 750 1.1 mrg # sh-indentation: 2 751 1.1 mrg # eval: (add-hook 'write-file-hooks 'time-stamp) 752 1.1 mrg # time-stamp-start: "scriptversion=" 753 1.1 mrg # time-stamp-format: "%:y-%02m-%02d.%02H" 754 1.1 mrg # time-stamp-time-zone: "UTC" 755 1.1 mrg # time-stamp-end: "; # UTC" 756 1.1 mrg # End: 757