Re: [patch #8675] elftoolchain strip support

> Currently libtool does not properly detect elftoolchain's version of strip(1).
> The proposed patch fixes this.

For reference, this issue has been discussed in FreeBSD at
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=198611

It's possible to simplify the test a little bit; $EGREP is already
used in libtool.m4. This is what I had:

--- a/m4/libtool.m4
+++ b/m4/libtool.m4
@@ -2207,7 +2207,8 @@ m4_defun([_LT_CMD_STRIPLIB],
 striplib=
 old_striplib=
 AC_MSG_CHECKING([whether stripping libraries is possible])
-if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
+if test -n "$STRIP" && $STRIP -V 2>&1 |
+  $EGREP "GNU strip|strip.*elftoolchain" >/dev/null; then
   test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
   test -z "$striplib" && striplib="$STRIP --strip-unneeded"
   AC_MSG_RESULT([yes])