Unit tests had an unconditional dependency on libusb and this was
a) strictly speaking not needed, b) blocking one build system effort.
This patch is a temporary solution to unblock one build system effort,
specifically CB:63724. It creates a condition so that libusb is only
included when it is required, not always.
This workaround is based on the fact that at the moment only
2 lifecycle unit tests are using libusb symbols: dediprog and
raiden_debug.
BUG=b:237606255
TEST=the following scenarios run tests successfully
1) dediprog and raiden_debug programmers enabled, libusb.h present
result:
all test run and pass
2) dediprog disabled, libusb.h present
result:
dediprog test skipped, all other tests run and pass
3) dediprog and raiden_debug both disabled,
libusb.h changed to libusbabcd.h
result:
dediprog and raiden_debug tests are skipped,
all other tests run and pass
Change-Id: Iec8a1826951fd6ae586e90fde1a55170e7de41a8
Signed-off-by: Anastasia Klimchuk <aklm@chromium.org>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/65627
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Reviewed-by: Thomas Heijligen <src@posteo.de>
