This reverts upstream commit caf606c90d55305967b9253447dda93d2f1835ab
until https://sourceware.org/PR29547 is fixed.

--- a/libtool.m4
+++ b/libtool.m4
@@ -3214,31 +3214,25 @@ AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM,
      lt_nm_to_check="$lt_nm_to_check nm"
    fi
  fi
- for lt_tmp_nm in "$lt_nm_to_check"; do
+ for lt_tmp_nm in $lt_nm_to_check; do
    lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
    for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
      IFS="$lt_save_ifs"
      test -z "$ac_dir" && ac_dir=.
-     # Strip out any user-provided options from the nm to test twice,
-     # the first time to test to see if nm (rather than its options) has
-     # an explicit path, the second time to yield a file which can be
-     # nm'ed itself.
-     tmp_nm_path="`$ECHO "$lt_tmp_nm" | sed 's, -.*$,,'`"
-     case "$tmp_nm_path" in
+     case "$lt_tmp_nm" in
      */*|*\\*) tmp_nm="$lt_tmp_nm";;
      *) tmp_nm="$ac_dir/$lt_tmp_nm";;
      esac
-     tmp_nm_to_nm="`$ECHO "$tmp_nm" | sed 's, -.*$,,'`"
-     if test -f "$tmp_nm_to_nm" || test -f "$tmp_nm_to_nm$ac_exeext" ; then
+     if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then
        # Check to see if the nm accepts a BSD-compat flag.
        # Adding the `sed 1q' prevents false positives on HP-UX, which says:
        #   nm: unknown option "B" ignored
-       case `"$tmp_nm" -B "$tmp_nm_to_nm" 2>&1 | grep -v '^ *$' | sed '1q'` in
+       case `"$tmp_nm" -B "$tmp_nm" 2>&1 | grep -v '^ *$' | sed '1q'` in
        *$tmp_nm*) lt_cv_path_NM="$tmp_nm -B"
 	 break
 	 ;;
        *)
-	 case `"$tmp_nm" -p "$tmp_nm_to_nm" 2>&1 | grep -v '^ *$' | sed '1q'` in
+	 case `"$tmp_nm" -p "$tmp_nm" 2>&1 | grep -v '^ *$' | sed '1q'` in
 	 *$tmp_nm*)
 	   lt_cv_path_NM="$tmp_nm -p"
 	   break