value return
[exim.git] / src / scripts / Configure-config.h
1 #! /bin/sh
2
3 # Build the config.h file, using the buildconfig program, first ensuring that
4 # it exists.
5
6 # 22-May-1996: remove the use of the "-a" flag for /bin/sh because it is not
7 # implemented in the FreeBSD shell. Sigh.
8
9 # 12-Mar-1997: add s/#.*$// to the sed script to allow for comments on the
10 # ends of settings - someone got caught.
11
12 # 18-Apr-1997: put the tab character into a variable to stop it getting
13 # lost by accident (which has happened a couple of times).
14
15 # 19-Jan-1998: indented settings in the makefile weren't being handled
16 # correctly; added [$st]* before \\([A-Z] in the pattern, to ignore leading
17 # space. Oddly, the pattern previously read ^\([A-Z which didn't seem to
18 # cause a problem (but did when the new bit was put in).
19
20 # 04-May-2005: if $1 is set, copy it into $MAKE, and then use $MAKE, if set,
21 # instead of "make" so that if gmake is used, it is used consistently.
22
23 if [ "$1" != "" ] ; then MAKE=$1 ; fi
24 if [ "$MAKE" = "" ] ; then MAKE=make ; fi
25
26 $MAKE buildconfig || exit 1
27
28 # BEWARE: tab characters needed in the following sed command. They have had
29 # a nasty tendency to get lost in the past, causing a problem if a tab has
30 # actually been present in makefile. Use a variable to hold a space and a
31 # tab to keep the tab in one place. This makes the sed option horrendous to
32 # read, but the whole script is safer.
33
34 st=' '
35
36 (sed -n \
37 "/\\\$/d;s/#.*\$//;s/^[$st]*\\([A-Z][^:!+$st]*\\)[$st]*=[$st]*\\([^$st]*\\)[$st]*\$/\\1=\\2 export \\1/p" \
38 < Makefile ; echo "./buildconfig") | /bin/sh
39
40 # If buildconfig ends with an error code, it will have output an error
41 # message. Ensure that a broken config.h gets deleted.
42
43 if [ $? != 0 ] ; then
44 rm -f config.h
45 exit 1
46 fi
47
48 # Double-check that config.h is complete.
49
50 if [ "`tail -1 config.h`" != "/* End of config.h */" ] ; then
51 echo "*** config.h appears to be incomplete"
52 echo "*** unexpected failure in buildconfig program"
53 exit 1
54 fi
55
56 echo ">>> config.h built"
57 echo ""
58
59 # vim: set ft=sh :
60 # End of Configure-config.h