blob: 817432b7b471ad5948f7706604e3bef78fd39bd6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_expand_prefix.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_EXPAND_PREFIX
#
# DESCRIPTION
#
# When $prefix and $exec_prefix are still set to NONE then set them to the
# usual default values - being based on $ac_default_prefix. - this macro
# can be AC_REQUIREd by other macros that need to compute values for
# installation directories. It has been observed that it was done wrong
# over and over again, so this is a bit more safe to do.
#
# remember - setting exec_prefix='${prefix}' needs you interpolate
# directories multiple times, it is not sufficient to just say
# MYVAR="${datadir}/putter" but you do have to run `eval` a few times,
# sth. like MYVAR=`eval "echo \"$MYVAR\""` done at least two times.
#
# The implementation of this macro simply picks up the lines that would be
# run at the start of AC_OUTPUT anyway to set the prefix/exec_prefix
# defaults. Between AC_INIT and the first command to AC_REQUIRE this macro
# you can set the two variables to something explicit instead. Probably,
# any command to compute installation directories should be run _after_
# AM_INIT_AUTOMAKE
#
# LICENSE
#
# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 11
AC_DEFUN([AX_EXPAND_PREFIX],[dnl
# The prefix default can be set in configure.ac (otherwise it is /usr/local)
test "x$prefix" = xNONE && prefix=$ac_default_prefix
# Let make expand exec_prefix. Allows to override the makevar 'prefix' later
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
])
|
