Change in flashrom[master]: Makefile: Add macro to disable unsupported programmers

[Nico Huber (Code Review)]

Nico Huber has uploaded this change for review. ( https://review.coreboot.org/c/flashrom/+/55873 )

Change subject: Makefile: Add macro to disable unsupported programmers
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Makefile: Add macro to disable unsupported programmers

`mark_unsupported` disables all programmers passed as arguments and
adds them to the UNSUPPORTED_FEATURES list. It's conveniently used
with our dependency lists, e.g.

$(call mark_unsupported,$(NEEDS_LIBUSB1) $(NEEDS_LIBFTDI))

Change-Id: I6c9b66dfa89ec3d71675576d03fcebfdea30ce7b
Signed-off-by: Nico Huber 
---
M Makefile
1 file changed, 7 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/73/55873/1

diff --git a/Makefile b/Makefile
index 0f9ff69..3e8460f 100644
--- a/Makefile
+++ b/Makefile
@@ -135,6 +135,13 @@
 DEPENDS_ON_LIBJAYLINK := \
    CONFIG_JLINK_SPI \

+define mark_unsupported
+$(foreach p,$1, \
+	$(if $(filter $($(p)),yes), \
+		$(eval UNSUPPORTED_FEATURES += $(p)=yes),
+		$(eval override $(p) := no)))
+endef
+
 ###############################################################################
 # General OS-specific settings.
 # 1. Prepare for later by gathering information about host and target OS