| 1 |
|
#! /bin/sh |
| 2 |
|
# depcomp - compile a program generating dependencies as side-effects |
| 3 |
|
|
| 4 |
< |
scriptversion=2012-03-27.16; # UTC |
| 4 |
> |
scriptversion=2012-07-12.20; # UTC |
| 5 |
|
|
| 6 |
|
# Copyright (C) 1999-2012 Free Software Foundation, Inc. |
| 7 |
|
|
| 334 |
|
rm -f "$tmpdepfile" |
| 335 |
|
;; |
| 336 |
|
|
| 337 |
+ |
## The order of this option in the case statement is important, since the |
| 338 |
+ |
## shell code in configure will try each of these formats in the order |
| 339 |
+ |
## listed in this file. A plain '-MD' option would be understood by many |
| 340 |
+ |
## compilers, so we must ensure this comes after the gcc and icc options. |
| 341 |
+ |
pgcc) |
| 342 |
+ |
# Portland's C compiler understands '-MD'. |
| 343 |
+ |
# Will always output deps to 'file.d' where file is the root name of the |
| 344 |
+ |
# source file under compilation, even if file resides in a subdirectory. |
| 345 |
+ |
# The object file name does not affect the name of the '.d' file. |
| 346 |
+ |
# pgcc 10.2 will output |
| 347 |
+ |
# foo.o: sub/foo.c sub/foo.h |
| 348 |
+ |
# and will wrap long lines using '\' : |
| 349 |
+ |
# foo.o: sub/foo.c ... \ |
| 350 |
+ |
# sub/foo.h ... \ |
| 351 |
+ |
# ... |
| 352 |
+ |
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'` |
| 353 |
+ |
test "x$dir" = "x$object" && dir= |
| 354 |
+ |
# Use the source, not the object, to determine the base name, since |
| 355 |
+ |
# that's sadly what pgcc will do too. |
| 356 |
+ |
base=`echo "$source" | sed -e 's|^.*/||' -e 's/\.[-_a-zA-Z0-9]*$//'` |
| 357 |
+ |
tmpdepfile="$base.d" |
| 358 |
+ |
|
| 359 |
+ |
# For projects that build the same source file twice into different object |
| 360 |
+ |
# files, the pgcc approach of using the *source* file root name can cause |
| 361 |
+ |
# problems in parallel builds. Use a locking strategy to avoid stomping on |
| 362 |
+ |
# the same $tmpdepfile. |
| 363 |
+ |
lockdir="$base.d-lock" |
| 364 |
+ |
trap "echo '$0: caught signal, cleaning up...' >&2; rm -rf $lockdir" 1 2 13 15 |
| 365 |
+ |
numtries=100 |
| 366 |
+ |
i=$numtries |
| 367 |
+ |
while test $i -gt 0 ; do |
| 368 |
+ |
# mkdir is a portable test-and-set. |
| 369 |
+ |
if mkdir $lockdir 2>/dev/null; then |
| 370 |
+ |
# This process acquired the lock. |
| 371 |
+ |
"$@" -MD |
| 372 |
+ |
stat=$? |
| 373 |
+ |
# Release the lock. |
| 374 |
+ |
rm -rf $lockdir |
| 375 |
+ |
break |
| 376 |
+ |
else |
| 377 |
+ |
## the lock is being held by a different process, |
| 378 |
+ |
## wait until the winning process is done or we timeout |
| 379 |
+ |
while test -d $lockdir && test $i -gt 0; do |
| 380 |
+ |
sleep 1 |
| 381 |
+ |
i=`expr $i - 1` |
| 382 |
+ |
done |
| 383 |
+ |
fi |
| 384 |
+ |
i=`expr $i - 1` |
| 385 |
+ |
done |
| 386 |
+ |
trap - 1 2 13 15 |
| 387 |
+ |
if test $i -le 0; then |
| 388 |
+ |
echo "$0: failed to acquire lock after $numtries attempts" >&2 |
| 389 |
+ |
echo "$0: check lockdir '$lockdir'" >&2 |
| 390 |
+ |
exit 1 |
| 391 |
+ |
fi |
| 392 |
+ |
|
| 393 |
+ |
if test $stat -ne 0; then |
| 394 |
+ |
rm -f "$tmpdepfile" |
| 395 |
+ |
exit $stat |
| 396 |
+ |
fi |
| 397 |
+ |
rm -f "$depfile" |
| 398 |
+ |
# Each line is of the form `foo.o: dependent.h', |
| 399 |
+ |
# or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. |
| 400 |
+ |
# Do two passes, one to just change these to |
| 401 |
+ |
# `$object: dependent.h' and one to simply `dependent.h:'. |
| 402 |
+ |
sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" |
| 403 |
+ |
# Some versions of the HPUX 10.20 sed can't process this invocation |
| 404 |
+ |
# correctly. Breaking it into two sed invocations is a workaround. |
| 405 |
+ |
sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" | |
| 406 |
+ |
sed -e 's/$/ :/' >> "$depfile" |
| 407 |
+ |
rm -f "$tmpdepfile" |
| 408 |
+ |
;; |
| 409 |
+ |
|
| 410 |
|
hp2) |
| 411 |
|
# The "hp" stanza above does not work with aCC (C++) and HP's ia64 |
| 412 |
|
# compilers, which have integrated preprocessors. The correct option |
