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dnl
dnl Additional macros for configure.in packaged up for easier theft.
dnl $Id: cyrus.m4,v 1.4 2003/10/08 20:35:24 rjs3 Exp $
dnl tjs@andrew.cmu.edu 6-may-1998
dnl
dnl It would be good if ANDREW_ADD_LIBPATH could detect if something was
dnl already there and not redundantly add it if it is.
dnl add -L(arg), and possibly (runpath switch)(arg), to LDFLAGS
dnl (so the runpath for shared libraries is set).
AC_DEFUN([CMU_ADD_LIBPATH], [
# this is CMU ADD LIBPATH
if test "$andrew_runpath_switch" = "none" ; then
LDFLAGS="-L$1 ${LDFLAGS}"
else
LDFLAGS="-L$1 $andrew_runpath_switch$1 ${LDFLAGS}"
fi
])
dnl add -L(1st arg), and possibly (runpath switch)(1st arg), to (2nd arg)
dnl (so the runpath for shared libraries is set).
AC_DEFUN([CMU_ADD_LIBPATH_TO], [
# this is CMU ADD LIBPATH TO
if test "$andrew_runpath_switch" = "none" ; then
$2="-L$1 ${$2}"
else
$2="-L$1 ${$2} $andrew_runpath_switch$1"
fi
])
dnl runpath initialization
AC_DEFUN([CMU_GUESS_RUNPATH_SWITCH], [
# CMU GUESS RUNPATH SWITCH
AC_CACHE_CHECK(for runpath switch, andrew_runpath_switch, [
# first, try -R
SAVE_LDFLAGS="${LDFLAGS}"
LDFLAGS="-R /usr/lib"
AC_TRY_LINK([],[],[andrew_runpath_switch="-R"], [
LDFLAGS="-Wl,-rpath,/usr/lib"
AC_TRY_LINK([],[],[andrew_runpath_switch="-Wl,-rpath,"],
[andrew_runpath_switch="none"])
])
LDFLAGS="${SAVE_LDFLAGS}"
])])
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