support.mk (556B)
- # Helper to determine if a compiler option is supported
- # Args:
- # $(1) = option to test, if successful will be output
- # $(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) $(3) -o /dev/null -x c /dev/null >/dev/null 2>&1; }; \
- then echo "$(1)"; else echo "$(2)"; fi)
- # Helper to pass comma character to make functions (use with `$(,)` to pass in `$(call ...)` arguments)
- , := ,