internals: fix stripping yet once again

Fix typo introduced by changeset #055e505f28be.
Also, handle older versions of gcc (typically, all versions
prior to 4.0.0).

Maxime provided a similar patch, missing the case for the
legacy versions of gcc.

Reported-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from 539a3fa894f00888b02c7f89a2046f02c9d51e75)

 reporter_name="dsreed on freenode/#crosstool-ng"

 reporter_url=""

 reporter_comment="Enables experimental support for VFP/NEON hardware floating point."