Add a new make macro for creating <file> from <file>.in at build time. To be used like this:
$(foreach file,$(IN_FILES),$(eval $(call apply-build-vars,$(file)))) This can be used instead of the current approach to perform the similar step for file.in during ./configure. This will avoid having to run ./configure just because of modifying a file depending on a variable set by configure. Prepare to have multiple files as source for the replacement patterns. Signed-off-by: Juergen Gross <[email protected]> --- V2: - don't use pattern rule, but create explicit dependency in macro, don't require to rename source files (Jan Beulich, Andrew Cooper) --- Config.mk | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/Config.mk b/Config.mk index e1556dfbfa..d21d67945a 100644 --- a/Config.mk +++ b/Config.mk @@ -159,6 +159,19 @@ define move-if-changed if ! cmp -s $(1) $(2); then mv -f $(1) $(2); else rm -f $(1); fi endef +PATH_FILES := Paths +INC_FILES := $(foreach f, $(PATH_FILES), $(XEN_ROOT)/config/$(f).mk) + +include $(INC_FILES) + +BUILD_MAKE_VARS := $(foreach f, $(PATH_FILES), $(shell awk '$$2 == ":=" { print $$1; }' $(XEN_ROOT)/config/$(f).mk.in)) + +# Replace @xxx@ markers in $(1).in with $(xxx) variable contents, write to $(1) +define apply-build-vars + $(1): $(1).in + sed $$(foreach v, $$(BUILD_MAKE_VARS), -e 's#@$$(v)@#$$($$(v))#g') <$$< >$$@ +endef + CFLAGS += -fno-strict-aliasing CFLAGS += -std=gnu99 -- 2.51.0
