# depcomp - compile a program generating dependencies as side-effects
# Copyright 1999, 2000 Free Software Foundation, Inc.
# 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 3, or (at your option)
# 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; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 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>.
if test -z "$depmode" ||
test -z "$source" ||
test -z "$object"; then
echo "depcomp: Variables source, object and depmode must be set" 1>&2
# `libtool' can also be set to `yes' or `no'.
depfile
=${depfile-`echo "$object" | sed 's,\([^/]*\)$,.deps/\1,;s/\.\([^.]*\)$/.P\1/'`}
tmpdepfile
=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
# Some modes work just like other modes, but use different flags. We
# parameterize here, but still list the modes in the big case below,
# to make depend.m4 easier to write. Note that we *cannot* use a case
# here, because this file can only contain one case statement.
if test "$depmode" = hp
; then
# HP compiler uses -M and no extra arg.
if test "$depmode" = dashXmstdout
; then
# This is just like dashmstdout with a different argument.
## gcc 3 implements dependency tracking that does exactly what
## we want. Yay! Note: for some reason libtool 1.4 doesn't like
## it if -MD -MP comes after the -MF stuff. Hmm.
"$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
if test $stat -eq 0; then :
mv "$tmpdepfile" "$depfile"
## There are various ways to get dependency output from gcc. Here's
## why we pick this rather obscure method:
## - Don't want to use -MD because we'd like the dependencies to end
## up in a subdir. Having to rename by hand is ugly.
## (We might end up doing this anyway to support other compilers.)
## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
## -MM, not -M (despite what the docs say).
## - Using -M directly means running the compiler twice (even worse
if test -z "$gccflag"; then
"$@" -Wp,"$gccflag$tmpdepfile"
if test $stat -eq 0; then :
echo "$object : \\" > "$depfile"
alpha
=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
## The second -e expression handles DOS-style file names with drive letters.
-e 's/^['$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
## 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
## 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"
# This case exists only to let depend.m4 do its work. It works by
# looking at the text of this script. This case will never be run,
# since it is checked for above.
if test "$libtool" = yes; then
"$@" "-Wp,-MDupdate,$tmpdepfile"
"$@" -MDupdate "$tmpdepfile"
if test $stat -eq 0; then :
if test -f "$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
|
sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
# The second pass generates a dummy entry for each header file.
|
sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
# The sourcefile does not contain any dependencies, so just
# store a dummy comment line, to avoid errors with the Makefile
# "include basename.Plo" scheme.
echo "#dummy" > "$depfile"
# The C for AIX Compiler uses -M and outputs the dependencies
# in a .u file. This file always lives in the current directory.
# Also, the AIX compiler puts `$object:' at the start of each line;
# $object doesn't have directory information.
stripped
=`echo "$object" | sed -e 's,^.*/,,' -e 's/\(.*\)\..*$/\1/'`
if test "$libtool" = yes; then
if test $stat -eq 0; then :
if test -f "$tmpdepfile"; then
# 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" >> "$depfile"
# The sourcefile does not contain any dependencies, so just
# store a dummy comment line, to avoid errors with the Makefile
# "include basename.Plo" scheme.
echo "#dummy" > "$depfile"
# The Tru64 AIX 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.
tmpdepfile2
=`echo "$object" | sed -e 's/.o$/.d/'`
if test "$libtool" = yes; then
if test $stat -eq 0; then :
rm -f "$tmpdepfile1" "$tmpdepfile2"
if test -f "$tmpdepfile1"; then
tmpdepfile
="$tmpdepfile1"
tmpdepfile
="$tmpdepfile2"
if test -f "$tmpdepfile"; then
sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
# That's a space and a tab in the [].
sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
echo "#dummy" > "$depfile"
# This comment above is used by automake to tell side-effect
# dependency tracking mechanisms from slower ones.
# Important note: in order to support this mode, a compiler *must*
# always write the proprocessed file to stdout, regardless of -o,
# because we must use -o when running libtool.
test -z "$dashmflag" && dashmflag
=-M
*" --mode=compile "*) # this is libtool, let us make it quiet
do # cycle over the arguments
# insert --quiet before "--mode=compile"
"$@" $dashmflag |
sed 's:^[^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
if test "$stat" != 0; then exit $stat; fi
cat < "$tmpdepfile" > "$depfile"
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' |
sed -e 's/$/ :/' >> "$depfile"
# This case only exists to satisfy depend.m4. It is never actually
# run, as this mode is specially recognized in the preamble.
set fnord
"$@" "$arg"; shift;;
set fnord
"$@" "$arg"; shift;;
obj_suffix
="`echo $object | sed 's/^.*\././'`"
${MAKEDEPEND-makedepend} 2>/dev
/null
-o"$obj_suffix" -f"$tmpdepfile" "$@"
if test "$stat" != 0; then exit $stat; fi
cat < "$tmpdepfile" > "$depfile"
tail +3 "$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
# Important note: in order to support this mode, a compiler *must*
# always write the proprocessed file to stdout, regardless of -o,
# because we must use -o when running libtool.
do # cycle over the arguments
# insert --quiet before "--mode=compile"
sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
sed '$ s: \\$::' > "$tmpdepfile"
if test "$stat" != 0; then exit $stat; fi
echo "$object : \\" > "$depfile"
cat < "$tmpdepfile" >> "$depfile"
sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
# Important note: in order to support this mode, a compiler *must*
# always write the proprocessed file to stdout, regardless of -o,
# because we must use -o when running libtool.
do # cycle over the arguments
# insert --quiet before "--mode=compile"
sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' |
sort |
uniq > "$tmpdepfile"
if test "$stat" != 0; then exit $stat; fi
echo "$object : \\" > "$depfile"
.
"$tmpdepfile" |
sed 's% %\\ %g' |
sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
.
"$tmpdepfile" |
sed 's% %\\ %g' |
sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
echo "Unknown depmode $depmode" 1>&2