3 # depcomp - compile a program generating dependencies as side-effects
4 # Copyright 1999, 2000 Free Software Foundation, Inc.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2, or (at your option)
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
21 # Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
23 if test -z "$depmode" || test -z "$source" || test -z "$object"; then
24 echo "depcomp: Variables source, object and depmode must be set" 1>&2
27 # `libtool' can also be set to `yes' or `no'.
29 depfile
=${depfile-`echo "$object" | sed 's,\([^/]*\)$,.deps/\1,;s/\.\([^.]*\)$/.P\1/'`}
30 tmpdepfile
=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
34 # Some modes work just like other modes, but use different flags. We
35 # parameterize here, but still list the modes in the big case below,
36 # to make depend.m4 easier to write. Note that we *cannot* use a case
37 # here, because this file can only contain one case statement.
38 if test "$depmode" = hp
; then
39 # HP compiler uses -M and no extra arg.
44 if test "$depmode" = dashXmstdout
; then
45 # This is just like dashmstdout with a different argument.
52 ## gcc 3 implements dependency tracking that does exactly what
54 if "$@" -MT "$object" -MF "$depfile" -MD -MP; then
60 ## There are various ways to get dependency output from gcc. Here's
61 ## why we pick this rather obscure method:
62 ## - Don't want to use -MD because we'd like the dependencies to end
63 ## up in a subdir. Having to rename by hand is ugly.
64 ## (We might end up doing this anyway to support other compilers.)
65 ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
66 ## -MM, not -M (despite what the docs say).
67 ## - Using -M directly means running the compiler twice (even worse
69 if test -z "$gccflag"; then
72 if "$@" -Wp,"$gccflag$tmpdepfile"; then :
79 echo "$object : \\" > "$depfile"
80 alpha
=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
81 ## The second -e expression handles DOS-style file names with drive letters.
82 sed -e 's/^[^:]*: / /' \
83 -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
84 ## This next piece of magic avoids the `deleted header file' problem.
85 ## The problem is that when a header file which appears in a .P file
86 ## is deleted, the dependency causes make to die (because there is
87 ## typically no way to rebuild the header). We avoid this by adding
88 ## dummy dependencies for each header file. Too bad gcc doesn't do
89 ## this for us directly.
92 ## Some versions of gcc put a space before the `:'. On the theory
93 ## that the space means something, we add a space to the output as
95 ## Some versions of the HPUX 10.20 sed can't process this invocation
96 ## correctly. Breaking it into two sed invocations is a workaround.
97 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
102 # This case exists only to let depend.m4 do its work. It works by
103 # looking at the text of this script. This case will never be run,
104 # since it is checked for above.
109 # The Java front end to gcc doesn't run cpp, so we can't use the -Wp
110 # trick. Instead we must use -M and then rename the resulting .d
111 # file. This is also the case for older versions of gcc, which
112 # don't implement -Wp.
119 FIXME
: rewrite the
file
123 if test "$libtool" = yes; then
124 "$@" "-Wp,-MDupdate,$tmpdepfile"
126 "$@" -MDupdate "$tmpdepfile"
129 if test $stat -eq 0; then :
137 if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
138 echo "$object : \\" > "$depfile"
140 # Clip off the initial element (the dependent). Don't try to be
141 # clever and replace this with sed code, as IRIX sed won't handle
142 # lines with more than a fixed number of characters (4096 in
143 # IRIX 6.2 sed, 8192 in IRIX 6.5).
145 ' < "$tmpdepfile" | sed 's/^[^\.]*\.o://' | tr '
149 ' < "$tmpdepfile" | \
150 ## Some versions of the HPUX 10.20 sed can't process this invocation
151 ## correctly. Breaking it into two sed invocations is a workaround.
152 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
154 # The sourcefile does not contain any dependencies, so just
155 # store a dummy comment line, to avoid errors with the Makefile
156 # "include basename.Plo" scheme.
157 echo "#dummy" > "$depfile"
163 # This comment above is used by automake to tell side-effect
164 # dependency tracking mechanisms from slower ones.
167 # Important note: in order to support this mode, a compiler *must*
168 # always write the proprocessed file to stdout, regardless of -o,
169 # because we must use -o when running libtool.
170 test -z "$dashmflag" && dashmflag
=-M
173 *" --mode=compile "*) # this is libtool, let us make it quiet
175 do # cycle over the arguments
178 # insert --quiet before "--mode=compile"
179 set fnord
"$@" --quiet
183 set fnord
"$@" "$arg"
189 "$@" $dashmflag | sed 's:^[^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
195 if test "$stat" != 0; then exit $stat; fi
197 cat < "$tmpdepfile" > "$depfile"
199 ' < "$tmpdepfile" | \
200 ## Some versions of the HPUX 10.20 sed can't process this invocation
201 ## correctly. Breaking it into two sed invocations is a workaround.
202 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
207 # This case only exists to satisfy depend.m4. It is never actually
208 # run, as this mode is specially recognized in the preamble.
224 set fnord
"$@" "$arg"; shift;;
228 set fnord
"$@" "$arg"; shift;;
231 obj_suffix
="`echo $object | sed 's/^.*\././'`"
233 ${MAKEDEPEND-makedepend} 2>/dev
/null
-o"$obj_suffix" -f"$tmpdepfile" "$@"
239 if test "$stat" != 0; then exit $stat; fi
241 cat < "$tmpdepfile" > "$depfile"
242 tail +3 "$tmpdepfile" | tr ' ' '
244 ## Some versions of the HPUX 10.20 sed can't process this invocation
245 ## correctly. Breaking it into two sed invocations is a workaround.
246 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
247 rm -f "$tmpdepfile" "$tmpdepfile".bak
251 # Important note: in order to support this mode, a compiler *must*
252 # always write the proprocessed file to stdout, regardless of -o,
253 # because we must use -o when running libtool.
256 *" --mode=compile "*)
258 do # cycle over the arguments
261 # insert --quiet before "--mode=compile"
262 set fnord
"$@" --quiet
266 set fnord
"$@" "$arg"
273 sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
274 sed '$ s: \\$::' > "$tmpdepfile"
280 if test "$stat" != 0; then exit $stat; fi
282 echo "$object : \\" > "$depfile"
283 cat < "$tmpdepfile" >> "$depfile"
284 sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
289 # Important note: in order to support this mode, a compiler *must*
290 # always write the proprocessed file to stdout, regardless of -o,
291 # because we must use -o when running libtool.
294 *" --mode=compile "*)
296 do # cycle over the arguments
299 # insert --quiet before "--mode=compile"
300 set fnord
"$@" --quiet
304 set fnord
"$@" "$arg"
311 sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
317 if test "$stat" != 0; then exit $stat; fi
319 echo "$object : \\" > "$depfile"
320 .
"$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
321 echo " " >> "$depfile"
322 .
"$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
331 echo "Unknown depmode $depmode" 1>&2