On Thu, Jan 08, 2009 at 10:43:13PM +0100, Kay Sievers wrote:
> Maybe we should drop that exec_prefix use und invent --slibdir (s like
> in --(s)bindir), which other projects think about to introduce, and we
> would require: --prefix, --libdir=, --slibdir=, --sbindir=
> --sysconf-dir to be specified at configure time? Maybe that's easier
> to handle, I was just waiting what the glib guys plan to use, because
> they have similar problems with configure specifying the rootfs as
> install location.
My $0.02... util-linux-ng installs files "everywhere" (/sbin,
/bin, /usr/bin, /usr/sbin, /etc, ...)
The build system differentiate between $bindir and $usrbinexec, ...
etc.
The important is that the default $exec_prefix (/usr) means "default
locations" -- so /{bin,sbin,etc} for rootfs stuff and /usr/bin for
/usr stuff. I think you can use the same logic for /lib and /usr/lib.
We follow autotools and we don't modify the default $prefix and
$exec_prefix (by default both is /usr).
Everything what you need is to check for non-default $exec_prefix in
configure script, in such case you have to follow the prefix at all.
configure.ac:
AC_PREFIX_DEFAULT([/usr])
# Check whether exec_prefix=/usr:
case $exec_prefix:$prefix in
NONE:NONE | NONE:/usr | /usr:*)
AC_MSG_NOTICE([Default --exec-prefix detected.])
case $bindir in
'${exec_prefix}/bin') bindir=/bin
AC_MSG_NOTICE([ --bindir defaults to /bin]) ;;
esac
case $sbindir in
'${exec_prefix}/sbin') sbindir=/sbin
AC_MSG_NOTICE([ --sbindir defaults to /sbin]) ;;
esac ;;
esac
config/include-Makefile.am (included in all Makefiles):
# The original default values of bindir and sbindir:
usrbinexecdir = ${exec_prefix}/bin
usrsbinexecdir = ${exec_prefix}/sbin
Karel
--
Karel Zak <kzak@xxxxxxxxxx>
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