2
# depcomp - compile a program generating dependencies as side-effects
4
scriptversion=2012-03-27.16; # UTC
6
# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009, 2010,
7
# 2011, 2012 Free Software Foundation, Inc.
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)
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.
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/>.
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.
27
# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
31
echo "$0: No command. Try '$0 --help' for more information." 1>&2
36
Usage: depcomp [--help] [--version] PROGRAM [ARGS]
38
Run PROGRAMS ARGS to compile a file, generating dependencies
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 outputting dependencies.
48
libtool Whether libtool is used (yes/no).
50
Report bugs to <bug-automake@gnu.org>.
55
echo "depcomp $scriptversion"
60
# A tabulation character.
62
# A newline character.
66
if test -z "$depmode" || test -z "$source" || test -z "$object"; then
67
echo "depcomp: Variables source, object and depmode must be set" 1>&2
71
# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
72
depfile=${depfile-`echo "$object" |
73
sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
74
tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
78
# Some modes work just like other modes, but use different flags. We
79
# parameterize here, but still list the modes in the big case below,
80
# to make depend.m4 easier to write. Note that we *cannot* use a case
81
# here, because this file can only contain one case statement.
82
if test "$depmode" = hp; then
83
# HP compiler uses -M and no extra arg.
88
if test "$depmode" = dashXmstdout; then
89
# This is just like dashmstdout with a different argument.
94
cygpath_u="cygpath -u -f -"
95
if test "$depmode" = msvcmsys; then
96
# This is just like msvisualcpp but w/o cygpath translation.
97
# Just convert the backslash-escaped backslashes to single forward
98
# slashes to satisfy depend.m4
99
cygpath_u='sed s,\\\\,/,g'
103
if test "$depmode" = msvc7msys; then
104
# This is just like msvc7 but w/o cygpath translation.
105
# Just convert the backslash-escaped backslashes to single forward
106
# slashes to satisfy depend.m4
107
cygpath_u='sed s,\\\\,/,g'
111
if test "$depmode" = xlc; then
112
# IBM C/C++ Compilers xlc/xlC can output gcc-like dependency informations.
113
gccflag=-qmakedep=gcc,-MF
119
## gcc 3 implements dependency tracking that does exactly what
120
## we want. Yay! Note: for some reason libtool 1.4 doesn't like
121
## it if -MD -MP comes after the -MF stuff. Hmm.
122
## Unfortunately, FreeBSD c89 acceptance of flags depends upon
123
## the command line argument order; so add the flags where they
124
## appear in depend2.am. Note that the slowdown incurred here
125
## affects only configure: in makefiles, %FASTDEP% shortcuts this.
129
-c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
130
*) set fnord "$@" "$arg" ;;
137
if test $stat -eq 0; then :
142
mv "$tmpdepfile" "$depfile"
146
## There are various ways to get dependency output from gcc. Here's
147
## why we pick this rather obscure method:
148
## - Don't want to use -MD because we'd like the dependencies to end
149
## up in a subdir. Having to rename by hand is ugly.
150
## (We might end up doing this anyway to support other compilers.)
151
## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
152
## -MM, not -M (despite what the docs say).
153
## - Using -M directly means running the compiler twice (even worse
155
if test -z "$gccflag"; then
158
"$@" -Wp,"$gccflag$tmpdepfile"
160
if test $stat -eq 0; then :
166
echo "$object : \\" > "$depfile"
167
alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
168
## The second -e expression handles DOS-style file names with drive letters.
169
sed -e 's/^[^:]*: / /' \
170
-e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
171
## This next piece of magic avoids the "deleted header file" problem.
172
## The problem is that when a header file which appears in a .P file
173
## is deleted, the dependency causes make to die (because there is
174
## typically no way to rebuild the header). We avoid this by adding
175
## dummy dependencies for each header file. Too bad gcc doesn't do
176
## this for us directly.
177
tr ' ' "$nl" < "$tmpdepfile" |
178
## Some versions of gcc put a space before the ':'. On the theory
179
## that the space means something, we add a space to the output as
180
## well. hp depmode also adds that space, but also prefixes the VPATH
181
## to the object. Take care to not repeat it in the output.
182
## Some versions of the HPUX 10.20 sed can't process this invocation
183
## correctly. Breaking it into two sed invocations is a workaround.
184
sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
185
| sed -e 's/$/ :/' >> "$depfile"
190
# This case exists only to let depend.m4 do its work. It works by
191
# looking at the text of this script. This case will never be run,
192
# since it is checked for above.
197
if test "$libtool" = yes; then
198
"$@" "-Wp,-MDupdate,$tmpdepfile"
200
"$@" -MDupdate "$tmpdepfile"
203
if test $stat -eq 0; then :
210
if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
211
echo "$object : \\" > "$depfile"
213
# Clip off the initial element (the dependent). Don't try to be
214
# clever and replace this with sed code, as IRIX sed won't handle
215
# lines with more than a fixed number of characters (4096 in
216
# IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
217
# the IRIX cc adds comments like '#:fec' to the end of the
219
tr ' ' "$nl" < "$tmpdepfile" \
220
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
221
tr "$nl" ' ' >> "$depfile"
224
# The second pass generates a dummy entry for each header file.
225
tr ' ' "$nl" < "$tmpdepfile" \
226
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
229
# The sourcefile does not contain any dependencies, so just
230
# store a dummy comment line, to avoid errors with the Makefile
231
# "include basename.Plo" scheme.
232
echo "#dummy" > "$depfile"
238
# This case exists only to let depend.m4 do its work. It works by
239
# looking at the text of this script. This case will never be run,
240
# since it is checked for above.
245
# The C for AIX Compiler uses -M and outputs the dependencies
246
# in a .u file. In older versions, this file always lives in the
247
# current directory. Also, the AIX compiler puts '$object:' at the
248
# start of each line; $object doesn't have directory information.
249
# Version 6 uses the directory in both cases.
250
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
251
test "x$dir" = "x$object" && dir=
252
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
253
if test "$libtool" = yes; then
254
tmpdepfile1=$dir$base.u
256
tmpdepfile3=$dir.libs/$base.u
259
tmpdepfile1=$dir$base.u
260
tmpdepfile2=$dir$base.u
261
tmpdepfile3=$dir$base.u
266
if test $stat -eq 0; then :
268
rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
272
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
274
test -f "$tmpdepfile" && break
276
if test -f "$tmpdepfile"; then
277
# Each line is of the form 'foo.o: dependent.h'.
278
# Do two passes, one to just change these to
279
# '$object: dependent.h' and one to simply 'dependent.h:'.
280
sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
281
sed -e 's,^.*\.[a-z]*:['"$tab"' ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
283
# The sourcefile does not contain any dependencies, so just
284
# store a dummy comment line, to avoid errors with the Makefile
285
# "include basename.Plo" scheme.
286
echo "#dummy" > "$depfile"
292
# Intel's C compiler anf tcc (Tiny C Compiler) understand '-MD -MF file'.
294
# $CC -MD -MF foo.d -c -o sub/foo.o sub/foo.c
295
# ICC 7.0 will fill foo.d with something like
298
# which is wrong. We want
299
# sub/foo.o: sub/foo.c
300
# sub/foo.o: sub/foo.h
303
# ICC 7.1 will output
304
# foo.o: sub/foo.c sub/foo.h
305
# and will wrap long lines using '\':
306
# foo.o: sub/foo.c ... \
309
# tcc 0.9.26 (FIXME still under development at the moment of writing)
310
# will emit a similar output, but also prepend the continuation lines
311
# with horizontal tabulation characters.
312
"$@" -MD -MF "$tmpdepfile"
314
if test $stat -eq 0; then :
320
# Each line is of the form 'foo.o: dependent.h',
321
# or 'foo.o: dep1.h dep2.h \', or ' dep3.h dep4.h \'.
322
# Do two passes, one to just change these to
323
# '$object: dependent.h' and one to simply 'dependent.h:'.
324
sed -e "s/^[ $tab][ $tab]*/ /" -e "s,^[^:]*:,$object :," \
325
< "$tmpdepfile" > "$depfile"
327
s/[ '"$tab"'][ '"$tab"']*/ /g
334
' < "$tmpdepfile" >> "$depfile"
339
# The "hp" stanza above does not work with aCC (C++) and HP's ia64
340
# compilers, which have integrated preprocessors. The correct option
341
# to use with these is +Maked; it writes dependencies to a file named
342
# 'foo.d', which lands next to the object file, wherever that
344
# Much of this is similar to the tru64 case; see comments there.
345
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
346
test "x$dir" = "x$object" && dir=
347
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
348
if test "$libtool" = yes; then
349
tmpdepfile1=$dir$base.d
350
tmpdepfile2=$dir.libs/$base.d
353
tmpdepfile1=$dir$base.d
354
tmpdepfile2=$dir$base.d
358
if test $stat -eq 0; then :
360
rm -f "$tmpdepfile1" "$tmpdepfile2"
364
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
366
test -f "$tmpdepfile" && break
368
if test -f "$tmpdepfile"; then
369
sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
370
# Add 'dependent.h:' lines.
376
}' "$tmpdepfile" >> "$depfile"
378
echo "#dummy" > "$depfile"
380
rm -f "$tmpdepfile" "$tmpdepfile2"
384
# The Tru64 compiler uses -MD to generate dependencies as a side
385
# effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
386
# At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
387
# dependencies in 'foo.d' instead, so we check for that too.
388
# Subdirectories are respected.
389
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
390
test "x$dir" = "x$object" && dir=
391
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
393
if test "$libtool" = yes; then
394
# With Tru64 cc, shared objects can also be used to make a
395
# static library. This mechanism is used in libtool 1.4 series to
396
# handle both shared and static libraries in a single compilation.
397
# With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
399
# With libtool 1.5 this exception was removed, and libtool now
400
# generates 2 separate objects for the 2 libraries. These two
401
# compilations output dependencies in $dir.libs/$base.o.d and
402
# in $dir$base.o.d. We have to check for both files, because
403
# one of the two compilations can be disabled. We should prefer
404
# $dir$base.o.d over $dir.libs/$base.o.d because the latter is
405
# automatically cleaned when .libs/ is deleted, while ignoring
406
# the former would cause a distcleancheck panic.
407
tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
408
tmpdepfile2=$dir$base.o.d # libtool 1.5
409
tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
410
tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
413
tmpdepfile1=$dir$base.o.d
414
tmpdepfile2=$dir$base.d
415
tmpdepfile3=$dir$base.d
416
tmpdepfile4=$dir$base.d
421
if test $stat -eq 0; then :
423
rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
427
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
429
test -f "$tmpdepfile" && break
431
if test -f "$tmpdepfile"; then
432
sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
433
sed -e 's,^.*\.[a-z]*:['"$tab"' ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
435
echo "#dummy" > "$depfile"
441
if test "$libtool" = yes; then
442
showIncludes=-Wc,-showIncludes
444
showIncludes=-showIncludes
446
"$@" $showIncludes > "$tmpdepfile"
448
grep -v '^Note: including file: ' "$tmpdepfile"
449
if test "$stat" = 0; then :
455
echo "$object : \\" > "$depfile"
456
# The first sed program below extracts the file names and escapes
457
# backslashes for cygpath. The second sed program outputs the file
458
# name when reading, but also accumulates all include files in the
459
# hold buffer in order to output them again at the end. This only
460
# works with sed implementations that can handle large buffers.
461
sed < "$tmpdepfile" -n '
462
/^Note: including file: *\(.*\)/ {
466
}' | $cygpath_u | sort -u | sed -n '
468
s/\(.*\)/'"$tab"'\1 \\/p
480
# This case exists only to let depend.m4 do its work. It works by
481
# looking at the text of this script. This case will never be run,
482
# since it is checked for above.
487
# This comment above is used by automake to tell side-effect
488
# dependency tracking mechanisms from slower ones.
491
# Important note: in order to support this mode, a compiler *must*
492
# always write the preprocessed file to stdout, regardless of -o.
495
# Remove the call to Libtool.
496
if test "$libtool" = yes; then
497
while test "X$1" != 'X--mode=compile'; do
503
# Remove '-o $object'.
515
set fnord "$@" "$arg"
522
test -z "$dashmflag" && dashmflag=-M
523
# Require at least two characters before searching for ':'
524
# in the target name. This is to cope with DOS-style filenames:
525
# a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
527
sed 's:^['"$tab"' ]*[^:'"$tab"' ][^:][^:]*\:['"$tab"' ]*:'"$object"'\: :' > "$tmpdepfile"
529
cat < "$tmpdepfile" > "$depfile"
530
tr ' ' "$nl" < "$tmpdepfile" | \
531
## Some versions of the HPUX 10.20 sed can't process this invocation
532
## correctly. Breaking it into two sed invocations is a workaround.
533
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
538
# This case only exists to satisfy depend.m4. It is never actually
539
# run, as this mode is specially recognized in the preamble.
545
# Remove any Libtool call
546
if test "$libtool" = yes; then
547
while test "X$1" != 'X--mode=compile'; do
562
if test $eat = yes; then
568
set fnord "$@" "$arg"; shift ;;
569
# Strip any option that makedepend may not understand. Remove
570
# the object too, otherwise makedepend will parse it as a source file.
576
set fnord "$@" "$arg"; shift ;;
579
obj_suffix=`echo "$object" | sed 's/^.*\././'`
581
${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
583
# makedepend may prepend the VPATH from the source file name to the object.
584
# No need to regex-escape $object, excess matching of '.' is harmless.
585
sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
586
sed '1,2d' "$tmpdepfile" | tr ' ' "$nl" | \
587
## Some versions of the HPUX 10.20 sed can't process this invocation
588
## correctly. Breaking it into two sed invocations is a workaround.
589
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
590
rm -f "$tmpdepfile" "$tmpdepfile".bak
594
# Important note: in order to support this mode, a compiler *must*
595
# always write the preprocessed file to stdout.
598
# Remove the call to Libtool.
599
if test "$libtool" = yes; then
600
while test "X$1" != 'X--mode=compile'; do
606
# Remove '-o $object'.
618
set fnord "$@" "$arg"
626
sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
627
-e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
628
sed '$ s: \\$::' > "$tmpdepfile"
630
echo "$object : \\" > "$depfile"
631
cat < "$tmpdepfile" >> "$depfile"
632
sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
637
# Important note: in order to support this mode, a compiler *must*
638
# always write the preprocessed file to stdout.
641
# Remove the call to Libtool.
642
if test "$libtool" = yes; then
643
while test "X$1" != 'X--mode=compile'; do
659
"-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
665
set fnord "$@" "$arg"
671
"$@" -E 2>/dev/null |
672
sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
674
echo "$object : \\" > "$depfile"
675
sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
676
echo "$tab" >> "$depfile"
677
sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
682
# This case exists only to let depend.m4 do its work. It works by
683
# looking at the text of this script. This case will never be run,
684
# since it is checked for above.
693
echo "Unknown depmode $depmode" 1>&2
703
# eval: (add-hook 'write-file-hooks 'time-stamp)
704
# time-stamp-start: "scriptversion="
705
# time-stamp-format: "%:y-%02m-%02d.%02H"
706
# time-stamp-time-zone: "UTC"
707
# time-stamp-end: "; # UTC"