efi: skip on unsupported target architectures

There's a possibility to run into IA32 EFI but that's rather uninteresting hardware (ancient Xeon servers and <s>outdated</s> early Intel Mac laptops). Just drop it on the floor. As x86_64 UEFI support would result in "2D hybrid(r)(tm)" image which boots with all combinations of BIOS/UEFI by CD|DVD/Flash (or at least should boot), some downgrace seems due: use/efi will turn use/isohybrid on non-x86_64 -- which will require further tweaks on PPC/ARM some day.

efi: skip on unsupported target architectures
b6eb7cb7 · Michael Shigorin · 5da4b440 · b6eb7cb7
Commit b6eb7cb7 authored Dec 18, 2012 by Michael Shigorin
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config.mk features.in/efi/config.mk +9 -0

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--- a/features.in/efi/config.mk
+++ b/features.in/efi/config.mk
+ifeq (x86_64,$(ARCH))
+
 use/efi:
 	@$(call add_feature)
 	@$(call set,MKI_VER_MINIMAL,0.2.5)	# see #28219
@@ -8,3 +10,10 @@ use/efi:
 use/efi/debug: use/efi
 	@$(call add,STAGE2_PACKAGES,efibootmgr gdisk)
 	@$(call set,KFLAVOURS,led-ws)
+
+else
+
+# ignore on an unsupported target arch but make it hybrid at least
+use/efi use/efi/debug: use/isohybrid
+
+endif