mpack-1.6-4/cmulocal/cyrus.m4

dnl
dnl Additional macros for configure.in packaged up for easier theft.
dnl $Id: cyrus.m4,v 1.3 2002/05/25 19:57:42 leg 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}"
  ])])
1	jmc	1.1	dnl
2			dnl Additional macros for configure.in packaged up for easier theft.
3			dnl $Id: cyrus.m4,v 1.3 2002/05/25 19:57:42 leg Exp $
4			dnl tjs@andrew.cmu.edu 6-may-1998
5			dnl
6
7			dnl It would be good if ANDREW_ADD_LIBPATH could detect if something was
8			dnl already there and not redundantly add it if it is.
9
10			dnl add -L(arg), and possibly (runpath switch)(arg), to LDFLAGS
11			dnl (so the runpath for shared libraries is set).
12			AC_DEFUN(CMU_ADD_LIBPATH, [
13			# this is CMU ADD LIBPATH
14			if test "$andrew_runpath_switch" = "none" ; then
15			LDFLAGS="-L$1 ${LDFLAGS}"
16			else
17			LDFLAGS="-L$1 $andrew_runpath_switch$1 ${LDFLAGS}"
18			fi
19			])
20
21			dnl add -L(1st arg), and possibly (runpath switch)(1st arg), to (2nd arg)
22			dnl (so the runpath for shared libraries is set).
23			AC_DEFUN(CMU_ADD_LIBPATH_TO, [
24			# this is CMU ADD LIBPATH TO
25			if test "$andrew_runpath_switch" = "none" ; then
26			$2="-L$1 ${$2}"
27			else
28			$2="-L$1 ${$2} $andrew_runpath_switch$1"
29			fi
30			])
31
32			dnl runpath initialization
33			AC_DEFUN(CMU_GUESS_RUNPATH_SWITCH, [
34			# CMU GUESS RUNPATH SWITCH
35			AC_CACHE_CHECK(for runpath switch, andrew_runpath_switch, [
36			# first, try -R
37			SAVE_LDFLAGS="${LDFLAGS}"
38			LDFLAGS="-R /usr/lib"
39			AC_TRY_LINK([],[],[andrew_runpath_switch="-R"], [
40			LDFLAGS="-Wl,-rpath,/usr/lib"
41			AC_TRY_LINK([],[],[andrew_runpath_switch="-Wl,-rpath,"],
42			[andrew_runpath_switch="none"])
43			])
44			LDFLAGS="${SAVE_LDFLAGS}"
45			])])