| 1 | ## automake - create Makefile.in from Makefile.am
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| 2 | ## Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
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| 3 | ## 2003, 2004 Free Software Foundation, Inc.
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| 4 |
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| 5 | ## This program is free software; you can redistribute it and/or modify
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| 6 | ## it under the terms of the GNU General Public License as published by
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| 7 | ## the Free Software Foundation; either version 2, or (at your option)
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| 8 | ## any later version.
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| 9 |
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| 10 | ## This program is distributed in the hope that it will be useful,
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| 11 | ## but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | ## GNU General Public License for more details.
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| 14 |
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| 15 | ## You should have received a copy of the GNU General Public License
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| 16 | ## along with this program; if not, write to the Free Software
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| 17 | ## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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| 18 | ## 02110-1301, USA.
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| 19 |
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| 20 | ## This file is read several times:
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| 21 | ## - once per *extension* (not per language) for generic compilation rules
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| 22 | ## - once for each file which requires specific flags.
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| 23 |
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| 24 | ## Note it is on purpose we wrote `if %AMDEP%', since:
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| 25 | ##
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| 26 | ## - if deps are turned off, %AMDEP% is mapped onto FALSE, and therefore
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| 27 | ## the `if FALSE' chunk is removed (automake-time conditionals).
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| 28 | ##
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| 29 | ## - if deps are on, %AMDEP% is mapped onto AMDEP, and therefore
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| 30 | ## the `if AMDEP' chunk is prefix with @AMDEP_TRUE@ just like for any
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| 31 | ## other configure-time conditional.
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| 32 | ##
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| 33 | ## We do likewise for %FASTDEP%; this expands to an ordinary
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| 34 | ## configure-time conditional. %FASTDEP% is used to speed up the
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| 35 | ## common case of building a package with gcc 3.x. In this case we
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| 36 | ## can skip the use of depcomp and easily inline the dependency
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| 37 | ## tracking.
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| 38 |
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| 39 | ## Verbosity of FASTDEP rules
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| 40 | ## --------------------------
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| 41 | ## (1) Some people want to see what happen during make. They think
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| 42 | ## @-commands are evil because hiding things hinders debugging.
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| 43 | ## (2) Other people want to see only the important commands--those that
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| 44 | ## may produce diagnostics, such as compiler invocations. They
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| 45 | ## do not care about build details such as dependency generation
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| 46 | ## (the if/then/else machinery in FASTDEP rules). Their point is
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| 47 | ## that it is hard to spot diagnostics in a verbose output.
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| 48 | ## (3) Other people want `make -s' to work as expected: silently.
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| 49 | ## This way they can spot any diagnostic really easily.
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| 50 | ##
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| 51 | ## The second point suggests we hide rules with @ and that we `echo'
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| 52 | ## only the relevant parts. However this goes against the two others.
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| 53 | ## There are regular complaints about this on the mailing list, but
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| 54 | ## it's hard to please everybody. On April 2003, William Fulton (from
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| 55 | ## clan (3)) and Karl Berry (from clan (2)) agreed that folding the
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| 56 | ## compile rules so that they are output on a single line (instead of 5)
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| 57 | ## would be a good compromise. Actually we use two line rather than one,
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| 58 | ## because this way %SOURCE% is always located at the end of the first
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| 59 | ## line and is therefore easier to spot. (We need an extra line when
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| 60 | ## depbase is used.)
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| 61 |
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| 62 | if %?NONLIBTOOL%
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| 63 | ?GENERIC?%EXT%.o:
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| 64 | ?!GENERIC?%OBJ%: %SOURCE%
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| 65 | if %FASTDEP%
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| 66 | ## In fast-dep mode, we can always use -o.
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| 67 | ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
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| 68 | ?!GENERIC? if %COMPILE% -MT %OBJ% -MD -MP -MF "%DEPBASE%.Tpo" %-c% -o %OBJ% `test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE%; \
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| 69 | ?SUBDIROBJ??GENERIC? depbase=`echo %OBJ% | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`; \
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| 70 | ?GENERIC? if %COMPILE% -MT %OBJ% -MD -MP -MF "%DEPBASE%.Tpo" %-c% -o %OBJ% %SOURCE%; \
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| 71 | then mv -f "%DEPBASE%.Tpo" "%DEPBASE%.Po"; else rm -f "%DEPBASE%.Tpo"; exit 1; fi
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| 72 | else !%FASTDEP%
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| 73 | if %AMDEP%
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| 74 | source='%SOURCE%' object='%OBJ%' libtool=no @AMDEPBACKSLASH@
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| 75 | DEPDIR=$(DEPDIR) $(%FPFX%DEPMODE) $(depcomp) @AMDEPBACKSLASH@
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| 76 | endif %AMDEP%
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| 77 | if %?GENERIC%
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| 78 | ?-o? %COMPILE% %-c% %-o% %OBJ% %SOURCE%
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| 79 | ?!-o? %COMPILE% %-c% %SOURCE%
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| 80 | else !%?GENERIC%
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| 81 | ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
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| 82 | ?-o? %COMPILE% %-c% %-o% %OBJ% `test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE%
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| 83 | ?!-o? %COMPILE% %-c% `test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE%
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| 84 | endif !%?GENERIC%
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| 85 | endif !%FASTDEP%
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| 86 |
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| 87 | ?GENERIC?%EXT%.obj:
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| 88 | ?!GENERIC?%OBJOBJ%: %SOURCE%
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| 89 | if %FASTDEP%
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| 90 | ## In fast-dep mode, we can always use -o.
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| 91 | ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
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| 92 | ?!GENERIC? if %COMPILE% -MT %OBJOBJ% -MD -MP -MF "%DEPBASE%.Tpo" %-c% -o %OBJOBJ% `if test -f '%SOURCE%'; then $(CYGPATH_W) '%SOURCE%'; else $(CYGPATH_W) '$(srcdir)/%SOURCE%'; fi`; \
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| 93 | ?SUBDIROBJ??GENERIC? depbase=`echo %OBJ% | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`; \
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| 94 | ?GENERIC? if %COMPILE% -MT %OBJOBJ% -MD -MP -MF "%DEPBASE%.Tpo" %-c% -o %OBJOBJ% `$(CYGPATH_W) '%SOURCE%'`; \
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| 95 | then mv -f "%DEPBASE%.Tpo" "%DEPBASE%.Po"; else rm -f "%DEPBASE%.Tpo"; exit 1; fi
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| 96 | else !%FASTDEP%
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| 97 | if %AMDEP%
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| 98 | source='%SOURCE%' object='%OBJOBJ%' libtool=no @AMDEPBACKSLASH@
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| 99 | DEPDIR=$(DEPDIR) $(%FPFX%DEPMODE) $(depcomp) @AMDEPBACKSLASH@
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| 100 | endif %AMDEP%
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| 101 | if %?GENERIC%
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| 102 | ?-o? %COMPILE% %-c% %-o% %OBJOBJ% `$(CYGPATH_W) '%SOURCE%'`
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| 103 | ?!-o? %COMPILE% %-c% `$(CYGPATH_W) '%SOURCE%'`
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| 104 | else !%?GENERIC%
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| 105 | ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
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| 106 | ?-o? %COMPILE% %-c% %-o% %OBJOBJ% `if test -f '%SOURCE%'; then $(CYGPATH_W) '%SOURCE%'; else $(CYGPATH_W) '$(srcdir)/%SOURCE%'; fi`
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| 107 | ?!-o? %COMPILE% %-c% `if test -f '%SOURCE%'; then $(CYGPATH_W) '%SOURCE%'; else $(CYGPATH_W) '$(srcdir)/%SOURCE%'; fi`
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| 108 | endif !%?GENERIC%
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| 109 | endif !%FASTDEP%
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| 110 | endif %?NONLIBTOOL%
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| 111 |
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| 112 | if %?LIBTOOL%
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| 113 | ?GENERIC?%EXT%.lo:
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| 114 | ?!GENERIC?%LTOBJ%: %SOURCE%
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| 115 | if %FASTDEP%
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| 116 | ## In fast-dep mode, we can always use -o.
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| 117 | ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
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| 118 | ?!GENERIC? if %LTCOMPILE% -MT %LTOBJ% -MD -MP -MF "%DEPBASE%.Tpo" %-c% -o %LTOBJ% `test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE%; \
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| 119 | ?SUBDIROBJ??GENERIC? depbase=`echo %OBJ% | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`; \
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| 120 | ?GENERIC? if %LTCOMPILE% -MT %LTOBJ% -MD -MP -MF "%DEPBASE%.Tpo" %-c% -o %LTOBJ% %SOURCE%; \
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| 121 | then mv -f "%DEPBASE%.Tpo" "%DEPBASE%.Plo"; else rm -f "%DEPBASE%.Tpo"; exit 1; fi
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| 122 | else !%FASTDEP%
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| 123 | if %AMDEP%
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| 124 | source='%SOURCE%' object='%LTOBJ%' libtool=yes @AMDEPBACKSLASH@
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| 125 | DEPDIR=$(DEPDIR) $(%FPFX%DEPMODE) $(depcomp) @AMDEPBACKSLASH@
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| 126 | endif %AMDEP%
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| 127 | ## We can always use `-o' with Libtool.
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| 128 | ?GENERIC? %LTCOMPILE% %-c% -o %LTOBJ% %SOURCE%
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| 129 | ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
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| 130 | ?!GENERIC? %LTCOMPILE% %-c% -o %LTOBJ% `test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE%
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| 131 | endif !%FASTDEP%
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| 132 | endif %?LIBTOOL%
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