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| # Kconfig helper macros
|
| # Convenient variables
| comma := ,
| quote := "
| squote := '
| empty :=
| space := $(empty) $(empty)
| dollar := $
| right_paren := )
| left_paren := (
|
| # $(if-success,<command>,<then>,<else>)
| # Return <then> if <command> exits with 0, <else> otherwise.
| if-success = $(shell,{ $(1); } >/dev/null 2>&1 && echo "$(2)" || echo "$(3)")
|
| # $(success,<command>)
| # Return y if <command> exits with 0, n otherwise
| success = $(if-success,$(1),y,n)
|
| # $(cc-option,<flag>)
| # Return y if the compiler supports <flag>, n otherwise
| cc-option = $(success,$(CC) -Werror $(CLANG_FLAGS) $(1) -S -x c /dev/null -o /dev/null)
|
| # $(ld-option,<flag>)
| # Return y if the linker supports <flag>, n otherwise
| ld-option = $(success,$(LD) -v $(1))
|
| # gcc version including patch level
| gcc-version := $(shell,$(srctree)/scripts/gcc-version.sh -p $(CC) | sed 's/^0*//')
|
|
