# This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version.
# This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details.
# You should have received a copy of the GNU General Public License # along with this program; ifnot, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA # 02111-1307, USA.
# As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program.
# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
case $1 in '')
echo "$0: No command. Try \`$0 --help' for more information."1>&2 exit1;
;;
-h | --h*)
cat <<\EOF
Usage: depcomp [--help] [--version] PROGRAM [ARGS]
Run PROGRAMS ARGS to compile a file, generating dependencies
as side-effects.
Environment variables:
depmode Dependency tracking mode.
source Source file read by `PROGRAMS ARGS'.
object Object file output by `PROGRAMS ARGS'.
DEPDIR directory where to store dependencies.
depfile Dependency file to output.
tmpdepfile Temporary file to use when outputing dependencies.
libtool Whether libtool is used (yes/no).
if test -z "$depmode" || test -z "$source" || test -z "$object"; then
echo "depcomp: Variables source, object and depmode must be set"1>&2 exit1
fi
# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
depfile=${depfile-`echo "$object" |
sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
rm -f "$tmpdepfile"
# Some modes work just like other modes, but use different flags. We # parameterize here, but still list the modes in the big case below, # to make depend.m4 easier to write. Note that we *cannot* use a case # here, because this file can only contain one case statement. if test "$depmode" = hp; then # HP compiler uses -M and no extra arg.
gccflag=-M
depmode=gcc
fi
if test "$depmode" = dashXmstdout; then # This is just like dashmstdout with a different argument.
dashmflag=-xM
depmode=dashmstdout
fi
case"$depmode" in
gcc3) ## gcc 3 implements dependency tracking that does exactly what ## we want. Yay! Note: for some reason libtool 1.4 doesn't like ## it if -MD -MP comes after the -MF stuff. Hmm. "$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
stat=$? if test $stat -eq 0; then : else
rm -f "$tmpdepfile" exit $stat
fi
mv "$tmpdepfile""$depfile"
;;
gcc) ## There are various ways to get dependency output from gcc. Here's ## why we pick this rather obscure method: ## - Don't want to use -MD because we'd like the dependencies to end ## up in a subdir. Having to rename by hand is ugly. ## (We might end up doing this anyway to support other compilers.) ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like ## -MM, not -M (despite what the docs say). ## - Using -M directly means running the compiler twice (even worse ## than renaming). if test -z "$gccflag"; then
gccflag=-MD,
fi "$@" -Wp,"$gccflag$tmpdepfile"
stat=$? if test $stat -eq 0; then : else
rm -f "$tmpdepfile" exit $stat
fi
rm -f "$depfile"
echo "$object : \\" > "$depfile"
alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz ## The second -e expression handles DOS-style file names with drive letters.
sed -e 's/^[^:]*: / /' \
-e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" ##This next piece of magic avoids the `deleted header file' problem. ## The problem is that when a header file which appears in a .P file ## is deleted, the dependency causes make to die (because there is ## typically no way to rebuild the header). We avoid this by adding ## dummy dependencies for each header file. Too bad gcc doesn't do ##thisfor us directly.
tr ' '' ' < "$tmpdepfile" | ## Some versions of gcc put a space before the `:'. On the theory ## that the space means something, we add a space to the output as ## well. ## Some versions of the HPUX 10.20 sed can't process this invocation ## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
hp) # Thiscase exists only to let depend.m4 do its work. It works by # looking at the text of this script. Thiscase will never be run, # since it is checked for above. exit1
;;
sgi) if test "$libtool" = yes; then "$@""-Wp,-MDupdate,$tmpdepfile" else "$@" -MDupdate "$tmpdepfile"
fi
stat=$? if test $stat -eq 0; then : else
rm -f "$tmpdepfile" exit $stat
fi
rm -f "$depfile"
if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
echo "$object : \\" > "$depfile"
# Clip off the initial element (the dependent). Don't try to be # clever and replace this with sed code, as IRIX sed won't handle # lines with more than a fixed number of characters (4096 in # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; # the IRIX cc adds comments like `#:fec' to the end of the # dependency line.
tr ' '' ' < "$tmpdepfile" \
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
tr ' ' '' >> $depfile
echo >> $depfile
# The second pass generates a dummy entry for each header file.
tr ' '' ' < "$tmpdepfile" \
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
>> $depfile else # The sourcefile does not contain any dependencies, so just # store a dummy comment line, to avoid errors with the Makefile # "include basename.Plo" scheme.
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
aix) # The C for AIX Compiler uses -M and outputs the dependencies # in a .u file. In older versions, this file always lives in the # current directory. Also, the AIX compiler puts `$object:' at the # start of each line; $object doesn't have directory information. # Version 6 uses the directory in both cases.
stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'`
tmpdepfile="$stripped.u" if test "$libtool" = yes; then "$@" -Wc,-M else "$@" -M
fi
stat=$?
if test -f "$tmpdepfile"; then : else
stripped=`echo "$stripped" | sed 's,^.*/,,'`
tmpdepfile="$stripped.u"
fi
if test $stat -eq 0; then : else
rm -f "$tmpdepfile" exit $stat
fi
if test -f "$tmpdepfile"; then
outname="$stripped.o" # Each line is of the form `foo.o: dependent.h'. # Do two passes, one to just change these to # `$object: dependent.h' and one to simply `dependent.h:'.
sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile" else # The sourcefile does not contain any dependencies, so just # store a dummy comment line, to avoid errors with the Makefile # "include basename.Plo" scheme.
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
icc) # Intel's C compiler understands `-MD -MF file'. However on # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c # ICC 7.0 will fill foo.d with something like # foo.o: sub/foo.c # foo.o: sub/foo.h # which is wrong. We want: # sub/foo.o: sub/foo.c # sub/foo.o: sub/foo.h # sub/foo.c: # sub/foo.h: # ICC 7.1 will output # foo.o: sub/foo.c sub/foo.h # and will wrap long lines using \ : # foo.o: sub/foo.c ... \ # sub/foo.h ... \ # ...
"$@" -MD -MF "$tmpdepfile"
stat=$? if test $stat -eq 0; then : else
rm -f "$tmpdepfile" exit $stat
fi
rm -f "$depfile" # Each line is of the form `foo.o: dependent.h', # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. # Do two passes, one to just change these to # `$object: dependent.h' and one to simply `dependent.h:'.
sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" # Some versions of the HPUX 10.20 sed can't process this invocation # correctly. Breaking it into two sed invocations is a workaround.
sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
tru64) # The Tru64 compiler uses -MD to generate dependencies as a side # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'. # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put # dependencies in `foo.d' instead, so we check for that too. # Subdirectories are respected.
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
test "x$dir" = "x$object" && dir=
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
if test "$libtool" = yes; then # With Tru64 cc, shared objects can also be used to make a # static library. This mecanism is used in libtool 1.4 series to # handle both shared andstatic libraries in a single compilation. # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
java.lang.NullPointerException # With libtool 1.5this exception was removed, and libtool now # generates 2 separate objects for the 2 libraries. These two # compilations output dependencies in in $dir.libs/$base.o.d and # in $dir$base.o.d. We have to check for both files, because # one of the two compilations can be disabled. We should prefer # $dir$base.o.d over $dir.libs/$base.o.d because the latter is # automatically cleaned when .libs/ is deleted, while ignoring # the former would cause a distcleancheck panic.
tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
tmpdepfile2=$dir$base.o.d # libtool 1.5
tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504 "$@" -Wc,-MD else
tmpdepfile1=$dir$base.o.d
tmpdepfile2=$dir$base.d
tmpdepfile3=$dir$base.d
tmpdepfile4=$dir$base.d "$@" -MD
fi
stat=$? if test $stat -eq 0; then : else
rm -f "$tmpdepfile1""$tmpdepfile2""$tmpdepfile3""$tmpdepfile4" exit $stat
fi
for tmpdepfile in "$tmpdepfile1""$tmpdepfile2""$tmpdepfile3""$tmpdepfile4" do
test -f "$tmpdepfile" && break
done if test -f "$tmpdepfile"; then
sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile" # That's a tab and a space in the [].
sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile" else
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
#nosideeffect) # This comment above is used by automake to tell side-effect # dependency tracking mechanisms from slower ones.
dashmstdout) # Important note: in order to support this mode, a compiler *must* # always write the preprocessed file to stdout, regardless of -o. "$@" || exit $?
# Remove the call to Libtool. if test "$libtool" = yes; then while test $1 != '--mode=compile'; do
shift
done
shift
fi
# Remove `-o $object'.
IFS=" " for arg do case $arg in
-o)
shift
;;
$object)
shift
;;
*)
set fnord "$@""$arg"
shift # fnord
shift # $arg
;;
esac
done
test -z "$dashmflag" && dashmflag=-M # Require at least two characters before searching for `:' # in the target name. This is to cope with DOS-style filenames: # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise. "$@" $dashmflag |
sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
rm -f "$depfile"
cat < "$tmpdepfile" > "$depfile"
tr ' '' ' < "$tmpdepfile" | \ ## Some versions of the HPUX 10.20 sed can't process this invocation ## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
dashXmstdout) # Thiscase only exists to satisfy depend.m4. It is never actually # run, as this mode is specially recognized in the preamble. exit1
;;
makedepend) "$@" || exit $? # Remove any Libtool call if test "$libtool" = yes; then while test $1 != '--mode=compile'; do
shift
done
shift
fi # X makedepend
shift
cleared=no for arg in "$@"; do case $cleared in
no)
set ""; shift
cleared=yes ;;
esac case"$arg" in
-D*|-I*)
set fnord "$@""$arg"; shift ;; # Strip any option that makedepend may not understand. Remove # the object too, otherwise makedepend will parse it as a source file.
-*|$object)
;;
*)
set fnord "$@""$arg"; shift ;;
esac
done
obj_suffix="`echo $object | sed 's/^.*\././'`"
touch "$tmpdepfile"
${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile""$@"
rm -f "$depfile"
cat < "$tmpdepfile" > "$depfile"
sed '1,2d'"$tmpdepfile" | tr ' '' ' | \ ## Some versions of the HPUX 10.20 sed can't process this invocation ## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile""$tmpdepfile".bak
;;
cpp) # Important note: in order to support this mode, a compiler *must* # always write the preprocessed file to stdout. "$@" || exit $?
# Remove the call to Libtool. if test "$libtool" = yes; then while test $1 != '--mode=compile'; do
shift
done
shift
fi
# Remove `-o $object'.
IFS=" " for arg do case $arg in
-o)
shift
;;
$object)
shift
;;
*)
set fnord "$@""$arg"
shift # fnord
shift # $arg
;;
esac
done