Add -static-libstdc++ to TARGET_LDFLAGS to avoid a hard dependency on libstdc++, and -Wl,--gc-sections to further reduce the size on platforms that support it. Fixes CVE-2017-9778. Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Signed-off-by: Felix Fietkau <nbd@nbd.name>