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| Current File : //usr/share/automake-1.13/am/depend2.am |
## automake - create Makefile.in from Makefile.am ## Copyright (C) 1994-2013 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 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. If not, see <http://www.gnu.org/licenses/>. ## This file is read several times: ## - once per *extension* (not per language) for generic compilation rules ## - once for each file which requires specific flags. ## Note it is on purpose we wrote "if %AMDEP%", since: ## ## - if deps are turned off, %AMDEP% is mapped onto FALSE, and therefore ## the "if FALSE" chunk is removed (automake-time conditionals). ## ## - if deps are on, %AMDEP% is mapped onto AMDEP, and therefore ## the "if AMDEP" chunk is prefix with @AMDEP_TRUE@ just like for any ## other configure-time conditional. ## ## We do likewise for %FASTDEP%; this expands to an ordinary ## configure-time conditional. %FASTDEP% is used to speed up the ## common case of building a package with gcc 3.x. In this case we ## can skip the use of depcomp and easily inline the dependency ## tracking. ## Verbosity of FASTDEP rules ## -------------------------- ## (1) Some people want to see what happens during make. They think ## @-commands are evil because hiding things hinders debugging. ## (2) Other people want to see only the important commands--those that ## may produce diagnostics, such as compiler invocations. They ## do not care about build details such as dependency generation ## (the if/then/else machinery in FASTDEP rules). Their point is ## that it is hard to spot diagnostics in a verbose output. ## (3) Other people want "make -s" to work as expected: silently. ## This way they can spot any diagnostic really easily. ## ## The second point suggests we hide rules with @ and that we 'echo' ## only the relevant parts. However this goes against the two others. ## There are regular complaints about this on the mailing list, but ## it's hard to please everybody. On April 2003, William Fulton (from ## clan (3)) and Karl Berry (from clan (2)) agreed that folding the ## compile rules so that they are output on a single line (instead of 5) ## would be a good compromise. Actually we use two lines rather than one, ## because this way %SOURCE% is always located at the end of the first ## line and is therefore easier to spot. (We need an extra line when ## depbase is used.) if %?NONLIBTOOL% ?GENERIC?%EXT%.o: ?!GENERIC?%OBJ%: %SOURCE% if %FASTDEP% ## In fast-dep mode, we can always use -o. ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%. ?!GENERIC? %VERBOSE%%COMPILE% -MT %OBJ% -MD -MP -MF %DEPBASE%.Tpo %-c% -o %OBJ% %SOURCEFLAG%`test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE% ?!GENERIC? %SILENT%$(am__mv) %DEPBASE%.Tpo %DEPBASE%.Po ?GENERIC??!SUBDIROBJ? %VERBOSE%%COMPILE% -MT %OBJ% -MD -MP -MF %DEPBASE%.Tpo %-c% -o %OBJ% %SOURCEFLAG%%SOURCE% ?GENERIC??!SUBDIROBJ? %SILENT%$(am__mv) %DEPBASE%.Tpo %DEPBASE%.Po ?GENERIC??SUBDIROBJ? %VERBOSE%depbase=`echo %OBJ% | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\ ?GENERIC??SUBDIROBJ? %COMPILE% -MT %OBJ% -MD -MP -MF %DEPBASE%.Tpo %-c% -o %OBJ% %SOURCEFLAG%%SOURCE% &&\ ?GENERIC??SUBDIROBJ? $(am__mv) %DEPBASE%.Tpo %DEPBASE%.Po else !%FASTDEP% if %AMDEP% %VERBOSE%source='%SOURCE%' object='%OBJ%' libtool=no @AMDEPBACKSLASH@ DEPDIR=$(DEPDIR) $(%FPFX%DEPMODE) $(depcomp) @AMDEPBACKSLASH@ endif %AMDEP% if %?GENERIC% ?-o? %VERBOSE-NODEP%%COMPILE% %-c% %-o% %OBJ% %SOURCEFLAG%%SOURCE% ?!-o? %VERBOSE-NODEP%%COMPILE% %-c% %SOURCEFLAG%%SOURCE% else !%?GENERIC% ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%. ?-o? %VERBOSE-NODEP%%COMPILE% %-c% %-o% %OBJ% %SOURCEFLAG%`test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE% ?!-o? %VERBOSE-NODEP%%COMPILE% %-c% %SOURCEFLAG%`test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE% endif !%?GENERIC% endif !%FASTDEP% ?GENERIC?%EXT%.obj: ?!GENERIC?%OBJOBJ%: %SOURCE% if %FASTDEP% ## In fast-dep mode, we can always use -o. ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%. ?!GENERIC? %VERBOSE%%COMPILE% -MT %OBJOBJ% -MD -MP -MF %DEPBASE%.Tpo %-c% -o %OBJOBJ% %SOURCEFLAG%`if test -f '%SOURCE%'; then $(CYGPATH_W) '%SOURCE%'; else $(CYGPATH_W) '$(srcdir)/%SOURCE%'; fi` ?!GENERIC? %SILENT%$(am__mv) %DEPBASE%.Tpo %DEPBASE%.Po ?GENERIC??!SUBDIROBJ? %VERBOSE%%COMPILE% -MT %OBJOBJ% -MD -MP -MF %DEPBASE%.Tpo %-c% -o %OBJOBJ% %SOURCEFLAG%`$(CYGPATH_W) '%SOURCE%'` ?GENERIC??!SUBDIROBJ? %SILENT%$(am__mv) %DEPBASE%.Tpo %DEPBASE%.Po ?GENERIC??SUBDIROBJ? %VERBOSE%depbase=`echo %OBJ% | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\ ?GENERIC??SUBDIROBJ? %COMPILE% -MT %OBJOBJ% -MD -MP -MF %DEPBASE%.Tpo %-c% -o %OBJOBJ% %SOURCEFLAG%`$(CYGPATH_W) '%SOURCE%'` &&\ ?GENERIC??SUBDIROBJ? $(am__mv) %DEPBASE%.Tpo %DEPBASE%.Po else !%FASTDEP% if %AMDEP% %VERBOSE%source='%SOURCE%' object='%OBJOBJ%' libtool=no @AMDEPBACKSLASH@ DEPDIR=$(DEPDIR) $(%FPFX%DEPMODE) $(depcomp) @AMDEPBACKSLASH@ endif %AMDEP% if %?GENERIC% ?-o? %VERBOSE-NODEP%%COMPILE% %-c% %-o% %OBJOBJ% %SOURCEFLAG%`$(CYGPATH_W) '%SOURCE%'` ?!-o? %VERBOSE-NODEP%%COMPILE% %-c% `$(CYGPATH_W) %SOURCEFLAG%'%SOURCE%'` else !%?GENERIC% ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%. ?-o? %VERBOSE-NODEP%%COMPILE% %-c% %-o% %OBJOBJ% %SOURCEFLAG%`if test -f '%SOURCE%'; then $(CYGPATH_W) '%SOURCE%'; else $(CYGPATH_W) '$(srcdir)/%SOURCE%'; fi` ?!-o? %VERBOSE-NODEP%%COMPILE% %-c% %SOURCEFLAG%`if test -f '%SOURCE%'; then $(CYGPATH_W) '%SOURCE%'; else $(CYGPATH_W) '$(srcdir)/%SOURCE%'; fi` endif !%?GENERIC% endif !%FASTDEP% endif %?NONLIBTOOL% if %?LIBTOOL% ?GENERIC?%EXT%.lo: ?!GENERIC?%LTOBJ%: %SOURCE% if %FASTDEP% ## In fast-dep mode, we can always use -o. ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%. ?!GENERIC? %VERBOSE%%LTCOMPILE% -MT %LTOBJ% -MD -MP -MF %DEPBASE%.Tpo %-c% -o %LTOBJ% %SOURCEFLAG%`test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE% ?!GENERIC? %SILENT%$(am__mv) %DEPBASE%.Tpo %DEPBASE%.Plo ?GENERIC??!SUBDIROBJ? %VERBOSE%%LTCOMPILE% -MT %LTOBJ% -MD -MP -MF %DEPBASE%.Tpo %-c% -o %LTOBJ% %SOURCEFLAG%%SOURCE% ?GENERIC??!SUBDIROBJ? %SILENT%$(am__mv) %DEPBASE%.Tpo %DEPBASE%.Plo ?GENERIC??SUBDIROBJ? %VERBOSE%depbase=`echo %OBJ% | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\ ?GENERIC??SUBDIROBJ? %LTCOMPILE% -MT %LTOBJ% -MD -MP -MF %DEPBASE%.Tpo %-c% -o %LTOBJ% %SOURCEFLAG%%SOURCE% &&\ ?GENERIC??SUBDIROBJ? $(am__mv) %DEPBASE%.Tpo %DEPBASE%.Plo else !%FASTDEP% if %AMDEP% %VERBOSE%source='%SOURCE%' object='%LTOBJ%' libtool=yes @AMDEPBACKSLASH@ DEPDIR=$(DEPDIR) $(%FPFX%DEPMODE) $(depcomp) @AMDEPBACKSLASH@ endif %AMDEP% ## We can always use '-o' with Libtool. ?GENERIC? %VERBOSE-NODEP%%LTCOMPILE% %-c% -o %LTOBJ% %SOURCEFLAG%%SOURCE% ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%. ?!GENERIC? %VERBOSE-NODEP%%LTCOMPILE% %-c% -o %LTOBJ% %SOURCEFLAG%`test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE% endif !%FASTDEP% endif %?LIBTOOL%