Remove unused SANE_LINKER_RPATH macro

acinclude.m4

@@ -10,7 +10,6 @@ dnl   SANE_CHECK_IEEE1284
 dnl   SANE_CHECK_PTHREAD
 dnl   SANE_CHECK_LOCKING
 dnl   JAPHAR_GREP_AM_CFLAGS(flag, cmd_if_missing, cmd_if_present)
-dnl   SANE_LINKER_RPATH
 dnl   SANE_CHECK_U_TYPES
 dnl   SANE_CHECK_GPHOTO2
 dnl   SANE_CHECK_IPV6
@@ -376,42 +375,6 @@ AC_DEFUN([JAPHAR_GREP_AM_CFLAGS],
 esac
 ])
 
-dnl
-dnl SANE_LINKER_RPATH
-dnl
-dnl Detect how to set runtime link path (rpath).  Set variable
-dnl LINKER_RPATH.  Typical content will be '-Wl,-rpath,' or '-R '.  If
-dnl set, add '${LINKER_RPATH}${libdir}' to $LDFLAGS
-dnl
-
-AC_DEFUN([SANE_LINKER_RPATH],
-[dnl AC_REQUIRE([AC_SUBST])dnl This line resulted in an empty AC_SUBST() !!
-  AC_MSG_CHECKING([whether runtime link path should be used])
-  AC_ARG_ENABLE([rpath],
-    [AS_HELP_STRING([--enable-rpath],
-      [use runtime library search path @<:@default=yes@:>@])])
-
-  LINKER_RPATH=
-  AS_IF([test "x$enable_rpath" != xno],
-  AC_MSG_RESULT([yes])
-    [AC_CACHE_CHECK([linker parameter to set runtime link path], my_cv_LINKER_RPATH,
-      [my_cv_LINKER_RPATH=
-      case "$host_os" in
-      linux* | freebsd* | netbsd* | openbsd* | irix*)
-        # I believe this only works with GNU ld [pere 2001-04-16]
-        my_cv_LINKER_RPATH="-Wl,-rpath,"
-        ;;
-      solaris*)
-        my_cv_LINKER_RPATH="-R "
-        ;;
-      esac
-      ])
-      LINKER_RPATH="$my_cv_LINKER_RPATH"],
-    [AC_MSG_RESULT([no])
-      LINKER_RPATH=])
-  AC_SUBST(LINKER_RPATH)dnl
-])
-
 dnl
 dnl   SANE_CHECK_U_TYPES
 dnl

configure.ac

@@ -72,7 +72,6 @@ dnl set compiler/linker flags
 dnl ***********************************************************************
 SANE_SET_AM_CFLAGS([$is_release])
 SANE_SET_AM_LDFLAGS
-SANE_LINKER_RPATH
 
 dnl ***********************************************************************
 dnl Checks for unix variants