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# depcomp - compile a program generating dependencies as side-effects
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# Copyright 1999, 2000, 2003 Free Software Foundation, Inc.
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scriptversion=2006-10-15.18
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# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006 Free Software
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# As a special exception to the GNU General Public License, if you
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# distribute this file as part of a program that contains a
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# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
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echo "$0: No command. Try \`$0 --help' for more information." 1>&2
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Usage: depcomp [--help] [--version] PROGRAM [ARGS]
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Run PROGRAMS ARGS to compile a file, generating dependencies
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Environment variables:
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depmode Dependency tracking mode.
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source Source file read by `PROGRAMS ARGS'.
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object Object file output by `PROGRAMS ARGS'.
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DEPDIR directory where to store dependencies.
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depfile Dependency file to output.
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tmpdepfile Temporary file to use when outputing dependencies.
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libtool Whether libtool is used (yes/no).
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Report bugs to <bug-automake@gnu.org>.
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echo "depcomp $scriptversion"
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if test -z "$depmode" || test -z "$source" || test -z "$object"; then
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echo "depcomp: Variables source, object and depmode must be set" 1>&2
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# `libtool' can also be set to `yes' or `no'.
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if test -z "$depfile"; then
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base=`echo "$object" | sed -e 's,^.*/,,' -e 's,\.\([^.]*\)$,.P\1,'`
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dir=`echo "$object" | sed 's,/.*$,/,'`
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if test "$dir" = "$object"; then
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# FIXME: should be _deps on DOS.
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depfile="$dir.deps/$base"
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# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
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depfile=${depfile-`echo "$object" |
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sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
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tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
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rm -f "$tmpdepfile"
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## gcc 3 implements dependency tracking that does exactly what
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## we want. Yay! Note: for some reason libtool 1.4 doesn't like
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## it if -MD -MP comes after the -MF stuff. Hmm.
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"$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
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## Unfortunately, FreeBSD c89 acceptance of flags depends upon
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## the command line argument order; so add the flags where they
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## appear in depend2.am. Note that the slowdown incurred here
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## affects only configure: in makefiles, %FASTDEP% shortcuts this.
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-c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
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*) set fnord "$@" "$arg" ;;
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if test $stat -eq 0; then :
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rm -f "$tmpdepfile"
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# The "hp" stanza above does not work with aCC (C++) and HP's ia64
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# compilers, which have integrated preprocessors. The correct option
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# to use with these is +Maked; it writes dependencies to a file named
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# 'foo.d', which lands next to the object file, wherever that
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# Much of this is similar to the tru64 case; see comments there.
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dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
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test "x$dir" = "x$object" && dir=
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base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
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if test "$libtool" = yes; then
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tmpdepfile1=$dir$base.d
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tmpdepfile2=$dir.libs/$base.d
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tmpdepfile1=$dir$base.d
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tmpdepfile2=$dir$base.d
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if test $stat -eq 0; then :
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rm -f "$tmpdepfile1" "$tmpdepfile2"
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for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
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test -f "$tmpdepfile" && break
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if test -f "$tmpdepfile"; then
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sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
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# Add `dependent.h:' lines.
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sed -ne '2,${; s/^ *//; s/ \\*$//; s/$/:/; p;}' "$tmpdepfile" >> "$depfile"
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echo "#dummy" > "$depfile"
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rm -f "$tmpdepfile" "$tmpdepfile2"
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# The Tru64 compiler uses -MD to generate dependencies as a side
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# effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
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base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
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if test "$libtool" = yes; then
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tmpdepfile1="$dir.libs/$base.lo.d"
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tmpdepfile2="$dir.libs/$base.d"
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# With Tru64 cc, shared objects can also be used to make a
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# static library. This mechanism is used in libtool 1.4 series to
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# handle both shared and static libraries in a single compilation.
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# With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
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# With libtool 1.5 this exception was removed, and libtool now
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# generates 2 separate objects for the 2 libraries. These two
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# compilations output dependencies in $dir.libs/$base.o.d and
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# in $dir$base.o.d. We have to check for both files, because
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# one of the two compilations can be disabled. We should prefer
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# $dir$base.o.d over $dir.libs/$base.o.d because the latter is
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# automatically cleaned when .libs/ is deleted, while ignoring
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# the former would cause a distcleancheck panic.
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tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
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tmpdepfile2=$dir$base.o.d # libtool 1.5
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tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
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tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
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tmpdepfile1="$dir$base.o.d"
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tmpdepfile2="$dir$base.d"
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tmpdepfile1=$dir$base.o.d
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tmpdepfile2=$dir$base.d
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tmpdepfile3=$dir$base.d
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tmpdepfile4=$dir$base.d
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if test $stat -eq 0; then :
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rm -f "$tmpdepfile1" "$tmpdepfile2"
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rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
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if test -f "$tmpdepfile1"; then
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tmpdepfile="$tmpdepfile1"
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tmpdepfile="$tmpdepfile2"
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for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
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test -f "$tmpdepfile" && break
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if test -f "$tmpdepfile"; then
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sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
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# That's a tab and a space in the [].
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sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
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sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
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-e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
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sed '$ s: \\$::' > "$tmpdepfile"
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echo "$object : \\" > "$depfile"
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depcomp
