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Fix cc-option on arm-none-eabi-gcc (#26114)

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Fix `cc-option` on ARM

Modify cc-option to ignore unresolved symbols during compilation tests.
This commit is contained in:
Joel Challis 2026-03-30 03:25:46 +01:00 • committed by GitHub
commit 534f59a169
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builddefs/support.mk
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@ -4,7 +4,7 @@
# $(2) = option to use if $(1) is not supported
# $(3) = additional arguments to pass to the compiler during the test, but aren't contained in the output
cc-option = $(shell \
if { echo 'int main(){return 0;}' | $(CC) $(1) $(3) -o /dev/null -x c /dev/null >/dev/null 2>&1; }; \
if { echo 'int main(){return 0;}' | $(CC) $(1) $(3) -Wl,--unresolved-symbols=ignore-all -o /dev/null -x c /dev/null >/dev/null 2>&1; }; \
then echo "$(1)"; else echo "$(2)"; fi)
# Helper to pass comma character to make functions (use with `$(,)` to pass in `$(call ...)` arguments)