aarch64, ppc64, s390x also use lib64

--- a/configure.ac

+++ b/configure.ac

@@ -167,6 +167,8 @@ ac_topdirs="/usr/share /usr/lib"

 if test "x$ac_arch" = "xx86_64"; then

    CFLAGS="-fPIC $CFLAGS"

    CPPFLAGS="-fPIC $CPPFLAGS"

+fi

+if test -d /usr/lib64; then

    ac_topdirs="$ac_topdirs /usr/lib64"

 fi

@@ -199,11 +201,10 @@ for X in $ac_with_paths; do

     CPPFLAGS="-I$X/include $CPPFLAGS"

     ac_incpath="$X/include $ac_incpath"

   fi

-  if test "x$ac_arch" = "xx86_64" -a -d $X/lib64; then

+  if test -d $X/lib64; then

     LIBS="-L$X/lib64 $LIBS"

     ac_libs="-L$X/lib64 $ac_libs"

-  fi

-  if test -d $X/lib; then

+  elif test -d $X/lib; then

     LIBS="-L$X/lib $LIBS"

     ac_libs="-L$X/lib $ac_libs"

   fi