Catch divide-by-zero in ${eval:...}.
[exim.git] / src / Makefile
1 # $Cambridge: exim/src/Makefile,v 1.7 2009/11/16 19:50:36 nm4 Exp $
2
3 # Top-level makefile for Exim; handles creating a build directory with
4 # appropriate links, and then creating and running the main makefile in that
5 # directory.
6
7 # Copyright (c) University of Cambridge, 1995 - 2007
8 # See the file NOTICE for conditions of use and distribution.
9
10 # IRIX make uses the shell that is in the SHELL variable, which often defaults
11 # to csh, so put this in to make it use the Bourne shell. In systems where
12 # /bin/sh is not a Bourne-compatible shell, this line will have to be edited,
13 # or "make" must be called with a different SHELL= setting.
14
15 SHELL=/bin/sh
16 RM_COMMAND=/bin/rm
17
18 # If a build name has not been specified by running this make file via a
19 # command of the form "make build=xxxx", then determine the name of the
20 # operating system and the machine architecture and use that. This does not
21 # provide an override for the OS type and architecture type; they still have
22 # to be used for the OS-specific files. To override them, you can set the
23 # shell variables OSTYPE and ARCHTYPE when running make.
24
25 buildname=$${build:-`$(SHELL) scripts/os-type`-`$(SHELL) scripts/arch-type`}
26
27 # The default target checks for the existence of Local/Makefile, that the main
28 # makefile is built and up-to-date, and then it runs it.
29
30 all: Local/Makefile configure
31 @cd build-$(buildname); $(MAKE) SHELL=$(SHELL) $(MFLAGS)
32
33 Local/Makefile:
34 @echo ""
35 @echo "*** Please create Local/Makefile by copying src/EDITME and making"
36 @echo "*** appropriate changes for your site."
37 @echo ""
38 @test ! -d Local && mkdir Local
39 @false
40
41 # This is separated off so that "make build-directory" can be obeyed on
42 # its own if necessary.
43
44 build-directory:
45 @builddir=build-$(buildname); \
46 case "$$builddir" in *UnKnown*) exit 1;; esac; \
47 $(SHELL) -c "test -d $$builddir -a -r $$builddir/version.c || \
48 (mkdir $$builddir; cd $$builddir; $(SHELL) ../scripts/MakeLinks)";
49
50 # The "configure" target ensures that the build directory exists, then arranges
51 # to build the main makefile from inside the build directory, by calling the
52 # Configure-Makefile script. This does its own dependency checking because of
53 # the optional files.
54
55 configure: build-directory
56 @cd build-$(buildname); \
57 build=$(build) $(SHELL) ../scripts/Configure-Makefile; \
58 $(SHELL) ../scripts/lookups-Makefile
59
60 # The "makefile" target forces a rebuild of the makefile (as opposed to
61 # "configure", which doesn't force it).
62
63 makefile: build-directory
64 @cd build-$(buildname); $(RM_COMMAND) -f Makefile; \
65 build=$(build) $(SHELL) ../scripts/Configure-Makefile; \
66 $(SHELL) ../scripts/lookups-Makefile
67
68 # The installation commands are kept in a separate script, which expects
69 # to be run from inside the build directory.
70
71 install:; @cd build-$(buildname); \
72 build=$(build) $(SHELL) ../scripts/exim_install $(INSTALL_ARG)
73
74 # Tidy-up targets
75
76 clean:; @echo ""; echo '*** "make clean" just removes all .o and .a files'
77 @echo '*** Use "make makefile" to force a rebuild of the makefile'
78 @echo ""
79 cd build-$(buildname); \
80 $(RM_COMMAND) -f *.o lookups/*.o lookups/*.a auths/*.o auths/*.a \
81 routers/*.o routers/*.a transports/*.o transports/*.a \
82 pdkim/*.o pdkim/*.a
83
84 clean_exim:; cd build-$(buildname); \
85 $(RM_COMMAND) -f *.o lookups/*.o lookups/*.a auths/*.o auths/*.a \
86 routers/*.o routers/*.a transports/*.o transports/*.a lookups/*.so
87
88 distclean:; $(RM_COMMAND) -rf build-*
89
90 # End of top-level makefile