1
dnl AS_AC_EXPAND(VAR, CONFIGURE_VAR)
4
dnl AS_AC_EXPAND(SYSCONFDIR, $sysconfdir)
5
dnl will set SYSCONFDIR to /usr/local/etc if prefix=/usr/local
7
AC_DEFUN([AS_AC_EXPAND],
12
dnl first expand prefix and exec_prefix if necessary
14
exec_prefix_save=$exec_prefix
16
dnl if no prefix given, then use /usr/local, the default prefix
17
if test "x$prefix" = "xNONE"; then
18
prefix=$ac_default_prefix
20
dnl if no exec_prefix given, then use prefix
21
if test "x$exec_prefix" = "xNONE"; then
26
dnl loop until it doesn't change anymore
28
new_full_var="`eval echo $full_var`"
29
if test "x$new_full_var"="x$full_var"; then break; fi
30
full_var=$new_full_var
34
full_var=$new_full_var
35
AC_SUBST([$1], "$full_var")
37
dnl restore prefix and exec_prefix
39
exec_prefix=$exec_prefix_save