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This is a small helper to check for possible linker options. If the linker supports the requested option it is returned and if not nothing will be returned, e.g.: TF_LDFLAGS += $(call ld_option, --no-warn-rwx-segments) can be called unconditional. Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Change-Id: I236800852ece49948ff53a0b91fddba53c8f0f95