1 ## automake - create Makefile.in from Makefile.am
2 ## Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
3 ## Free Software Foundation, Inc.
5 ## This program is free software; you can redistribute it and/or modify
6 ## it under the terms of the GNU General Public License as published by
7 ## the Free Software Foundation; either version 2, or (at your option)
10 ## This program is distributed in the hope that it will be useful,
11 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 ## GNU General Public License for more details.
15 ## You should have received a copy of the GNU General Public License
16 ## along with this program; if not, write to the Free Software
17 ## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
20 ## This file is read several times:
21 ## - once per *extension* (not per language) for generic compilation rules
22 ## - once for each file which requires specific flags.
24 ## Note it is on purpose we wrote `if %AMDEP%', since:
26 ## - if deps are turned off, %AMDEP% is mapped onto FALSE, and therefore
27 ## the `if FALSE' chunk is removed (automake-time conditionals).
29 ## - if deps are on, %AMDEP% is mapped onto AMDEP, and therefore
30 ## the `if AMDEP' chunk is prefix with @AMDEP_TRUE@ just like for any
31 ## other configure-time conditional.
33 ## We do likewise for %FASTDEP%; this expands to an ordinary
34 ## configure-time conditional. %FASTDEP% is used to speed up the
35 ## common case of building a package with gcc 3.x. In this case we
36 ## can skip the use of depcomp and easily inline the dependency
39 ## Verbosity of FASTDEP rules
40 ## --------------------------
41 ## (1) Some people want to see what happen during make. They think
42 ## @-commands are evil because hiding things hinders debugging.
43 ## (2) Other people want to see only the important commands--those that
44 ## may produce diagnostics, such as compiler invocations. They
45 ## do not care about build details such as dependency generation
46 ## (the if/then/else machinery in FASTDEP rules). Their point is
47 ## that it is hard to spot diagnostics in a verbose output.
48 ## (3) Other people want `make -s' to work as expected: silently.
49 ## This way they can spot any diagnostic really easily.
51 ## The second point suggests we hide rules with @ and that we `echo'
52 ## only the relevant parts. However this goes against the two others.
53 ## There are regular complaints about this on the mailing list, but
54 ## it's hard to please everybody. On April 2003, William Fulton (from
55 ## clan (3)) and Karl Berry (from clan (2)) agreed that folding the
56 ## compile rules so that they are output on a single line (instead of 5)
57 ## would be a good compromise. Actually we use two line rather than one,
58 ## because this way %SOURCE% is always located at the end of the first
59 ## line and is therefore easier to spot.
62 ?!GENERIC?%OBJ%: %SOURCE%
64 ## In fast-dep mode, we can always use -o.
65 ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
66 ?!GENERIC? if %COMPILE% -MT %OBJ% -MD -MP -MF "%DEPBASE%.Tpo" %-c% -o %OBJ% `test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE%; \
67 ?GENERIC? if %COMPILE% -MT %OBJ% -MD -MP -MF "%DEPBASE%.Tpo" %-c% -o %OBJ% %SOURCE%; \
68 then mv -f "%DEPBASE%.Tpo" "%DEPBASE%.Po"; else rm -f "%DEPBASE%.Tpo"; exit 1; fi
71 source='%SOURCE%' object='%OBJ%' libtool=no @AMDEPBACKSLASH@
72 depfile='%DEPBASE%.Po' tmpdepfile='%DEPBASE%.TPo' @AMDEPBACKSLASH@
73 $(%FPFX%DEPMODE) $(depcomp) @AMDEPBACKSLASH@
76 ?-o? %COMPILE% %-c% %-o% %OBJ% %SOURCE%
77 ?!-o? %COMPILE% %-c% %SOURCE%
79 ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
80 ?-o? %COMPILE% %-c% %-o% %OBJ% `test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE%
81 ?!-o? %COMPILE% %-c% `test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE%
86 ?!GENERIC?%OBJOBJ%: %SOURCE%
88 ## In fast-dep mode, we can always use -o.
89 ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
90 ?!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`; \
91 ?GENERIC? if %COMPILE% -MT %OBJOBJ% -MD -MP -MF "%DEPBASE%.Tpo" %-c% -o %OBJOBJ% `$(CYGPATH_W) '%SOURCE%'`; \
92 then mv -f "%DEPBASE%.Tpo" "%DEPBASE%.Po"; else rm -f "%DEPBASE%.Tpo"; exit 1; fi
95 source='%SOURCE%' object='%OBJOBJ%' libtool=no @AMDEPBACKSLASH@
96 depfile='%DEPBASE%.Po' tmpdepfile='%DEPBASE%.TPo' @AMDEPBACKSLASH@
97 $(%FPFX%DEPMODE) $(depcomp) @AMDEPBACKSLASH@
100 ?-o? %COMPILE% %-c% %-o% %OBJOBJ% `$(CYGPATH_W) '%SOURCE%'`
101 ?!-o? %COMPILE% %-c% `$(CYGPATH_W) '%SOURCE%'`
103 ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
104 ?-o? %COMPILE% %-c% %-o% %OBJOBJ% `if test -f '%SOURCE%'; then $(CYGPATH_W) '%SOURCE%'; else $(CYGPATH_W) '$(srcdir)/%SOURCE%'; fi`
105 ?!-o? %COMPILE% %-c% `if test -f '%SOURCE%'; then $(CYGPATH_W) '%SOURCE%'; else $(CYGPATH_W) '$(srcdir)/%SOURCE%'; fi`
111 ?!GENERIC?%LTOBJ%: %SOURCE%
113 ## In fast-dep mode, we can always use -o.
114 ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
115 ?GENERIC? if %LTCOMPILE% -MT %LTOBJ% -MD -MP -MF "%DEPBASE%.Tpo" %-c% -o %LTOBJ% %SOURCE%; \
116 ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
117 ?!GENERIC? if %LTCOMPILE% -MT %LTOBJ% -MD -MP -MF "%DEPBASE%.Tpo" %-c% -o %LTOBJ% `test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE%; \
118 then mv -f "%DEPBASE%.Tpo" "%DEPBASE%.Plo"; else rm -f "%DEPBASE%.Tpo"; exit 1; fi
121 source='%SOURCE%' object='%LTOBJ%' libtool=yes @AMDEPBACKSLASH@
122 depfile='%DEPBASE%.Plo' tmpdepfile='%DEPBASE%.TPlo' @AMDEPBACKSLASH@
123 $(%FPFX%DEPMODE) $(depcomp) @AMDEPBACKSLASH@
125 ## We can always use `-o' with Libtool.
126 ?GENERIC? %LTCOMPILE% %-c% -o %LTOBJ% %SOURCE%
127 ## For non-suffix rules, we must emulate a VPATH search on %SOURCE%.
128 ?!GENERIC? %LTCOMPILE% %-c% -o %LTOBJ% `test -f '%SOURCE%' || echo '$(srcdir)/'`%SOURCE%