Fix $LIBS bug in fetch(3) detection

aclocal.m4

@@ -148,7 +148,7 @@ LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
 LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" \
 DLLTOOL="$DLLTOOL" AS="$AS" OBJDUMP="$OBJDUMP" \
 ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig --no-reexec \
-$libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
+$libtool_flags --no-verify $ac_aux_dir/ltmain.sh $lt_target \
 || AC_MSG_ERROR([libtool configure failed])
 
 # Reload cache, that may have been modified by ltconfig
@@ -180,6 +180,11 @@ AC_REQUIRE([AC_PROG_NM])dnl
 AC_REQUIRE([AC_PROG_LN_S])dnl
 dnl
 
+case "$target" in
+NONE) lt_target="$host" ;;
+*) lt_target="$target" ;;
+esac
+
 # Check for any special flags to pass to ltconfig.
 libtool_flags="--cache-file=$cache_file"
 test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"
@@ -198,7 +203,7 @@ test x"$silent" = xyes && libtool_flags="$libtool_flags --silent"
 
 # Some flags need to be propagated to the compiler or linker for good
 # libtool support.
-case "$host" in
+case "$lt_target" in
 *-*-irix6*)
   # Find out which ABI we are using.
   echo '[#]line __oline__ "configure"' > conftest.$ac_ext
@@ -414,7 +419,6 @@ else
   AC_MSG_RESULT(no)
 fi
 test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
-AC_SUBST(LD)
 AC_PROG_LD_GNU
 ])
 
@@ -460,14 +464,13 @@ else
 fi])
 NM="$ac_cv_path_NM"
 AC_MSG_RESULT([$NM])
-AC_SUBST(NM)
 ])
 
 # AC_CHECK_LIBM - check for math library
 AC_DEFUN(AC_CHECK_LIBM,
 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
 LIBM=
-case "$host" in
+case "$lt_target" in
 *-*-beos* | *-*-cygwin*)
   # These system don't have libm
   ;;

build/openldap.m4

@@ -880,7 +880,7 @@ dnl
 dnl ====================================================================
 dnl Look for fetch(3)
 AC_DEFUN([OL_LIB_FETCH],
-[ol=$LIBS
+[ol_LIBS=$LIBS
 LIBS="-lfetch -lcom_err $LIBS"
 AC_CACHE_CHECK([fetch(3) library],ol_cv_lib_fetch,[
 	AC_TRY_LINK([