Added EXTRA_RULES_SUBDIRS feature

[omk.git] / snippets / config_h

diff --git a/snippets/config_h b/snippets/config_h
index b753be49a1cc77eca06db592175dbf458d6dbdf0..0e25ad9e1b49deac7b02ee0d529e92ba1c3f3abc 100644 (file)
--- a/snippets/config_h
+++ b/snippets/config_h
@@ -4,27 +4,32 @@
 #                     with subdirectories)
 # xxx_DEFINES      .. list of config directives to be included in
 #                     config header file of the name <somedir>/xxx.h
+# DOXYGEN          .. if non-empty, generated headers includes Doxygen's @file
+#                    command, so it is possible to document config
+#                    variables.
 
-# Syntax: $(call BUILD_CONFIG_H_template,<header_file_path>,<list_of_options_to_export>,<header_barrier>)
+# Syntax: $(call BUILD_CONFIG_H_template,<stamp_dir>,<header_file_path>,<list_of_options_to_export>,<header_barrier>)
 define BUILD_CONFIG_H_template
 
-$(1) : $(wildcard $(CONFIG_FILE)) $(wildcard $(CONFIG_FILE)-default)
-       @$(QUIET_CMD_ECHO) "  CONFGEN $$(@:$(MAKERULES_DIR)/%=%)"
-       @if [ ! -d `dirname $(1).tmp` ] ; then \
-               mkdir `dirname $(1).tmp` ; fi
-       @echo "/* Automatically generated from */" > "$(1).tmp"
-       @echo "/* config file: $$< */" >> "$(1).tmp"
-       @echo "#ifndef $(3)" >> "$(1).tmp"
-       @echo "#define $(3)" >> "$(1).tmp"
-       @( $(foreach x, $(shell echo '$($(2))' | sed -e 's/\<\([^ =]*\)\(=[^ ]\+\|\)\>/\1/g' ), \
+$(addprefix $(1)/,$(notdir $(addsuffix .stamp,$(2)))) : $(CONFIG_FILES)
+       @$(QUIET_CMD_ECHO) "  CONFGEN $$(@:%.stamp=%)"
+       @if [ ! -d `dirname $(2).tmp` ] ; then \
+               mkdir -p `dirname $(2).tmp` ; fi
+       @echo "/* Automatically generated from */" > "$(2).tmp"
+       @echo "/* config files: $$(^:$(OUTPUT_DIR)/%=%) */" >> "$(2).tmp"
+       $(if $(DOXYGEN),@echo "/** @file */" >> "$(2).tmp")
+       @echo "#ifndef $(4)" >> "$(2).tmp"
+       @echo "#define $(4)" >> "$(2).tmp"
+       @( $(foreach x, $(shell echo '$($(3))' | tr 'x\t ' 'x\n\n' | sed -e 's/^\([^ =]*\)\(=[^ ]\+\|\)$$/\1/' ), \
                echo '$(x).$($(x))' ; ) echo ; ) | \
                sed -e '/^[^.]*\.n$$$$/d' -e '/^[^.]*\.$$$$/d' -e 's/^\([^.]*\)\.[ym]$$$$/\1.1/' | \
                sed -n -e 's/^\([^.]*\)\.\(.*\)$$$$/#define \1 \2/p' \
-                 >> "$(1).tmp"
-       @echo "#endif /*$(3)*/" >> "$(1).tmp"
-       @if cmp --quiet "$(1).tmp" "$(1)" ; then rm "$(1).tmp" ; \
-       else mv "$(1).tmp" "$(1)" ; \
-       echo Updated configuration "$(1)" ; fi
+                 >> "$(2).tmp"
+       @echo "#endif /*$(4)*/" >> "$(2).tmp"
+       @touch "$$@"
+       @if cmp --quiet "$(2).tmp" "$(2)" ; then rm "$(2).tmp"; \
+       else mv "$(2).tmp" "$(2)" ; \
+       echo "Updated configuration $(2)" ; fi
 
 endef
 
@@ -33,25 +38,44 @@ ifdef LOCAL_CONFIG_H
 # This must be declared after the default cflags are assigned!
 # Override is used to override command line assignemnt.
 override CFLAGS += -I.
-$(eval $(call BUILD_CONFIG_H_template,$(LOCAL_CONFIG_H),default_CONFIG,_LOCAL_CONFIG_H) )
+$(eval $(call BUILD_CONFIG_H_template,$(USER_OBJS_DIR),$(USER_OBJS_DIR)/$(LOCAL_CONFIG_H),default_CONFIG,_LOCAL_CONFIG_H) )
 
 endif
 
 # Special rules for configuration exported headers
 
 #FIXME: The directory for headers should not be specified here.
-$(foreach confh,$(config_include_HEADERS),$(eval $(call BUILD_CONFIG_H_template,$(addprefix $(USER_INCLUDE_DIR)/,$(confh)),$(basename $(notdir $(confh)))_DEFINES,\
+$(foreach confh,$(config_include_HEADERS),$(eval $(call BUILD_CONFIG_H_template,$(USER_OBJS_DIR),$(addprefix $(USER_INCLUDE_DIR)/,$(confh)),$(basename $(notdir $(confh)))_DEFINES,\
 _$(basename $(notdir $(confh)))_H \
 )))
 
+config_h_stamp_files = $(addprefix $(USER_OBJS_DIR)/,$(notdir $(addsuffix .stamp,$(config_include_HEADERS) $(LOCAL_CONFIG_H))))
+
 # Add some hooks to standard passes
-include-pass-local: $(addprefix $(USER_INCLUDE_DIR)/,$(config_include_HEADERS))
+include-pass-local: $(config_h_stamp_files)
+
+ifneq ($(KERN_CONFIG_HEADERS_REQUIRED),)
+
+ifdef LOCAL_CONFIG_H
+$(eval $(call BUILD_CONFIG_H_template,$(KERN_OBJS_DIR),$(KERN_OBJS_DIR)/$(LOCAL_CONFIG_H),default_CONFIG,_LOCAL_CONFIG_H) )
+endif
+
+$(foreach confh,$(config_include_HEADERS),$(eval $(call BUILD_CONFIG_H_template,$(KERN_OBJS_DIR),$(addprefix $(KERN_INCLUDE_DIR)/,$(confh)),$(basename $(notdir $(confh)))_DEFINES,\
+_$(basename $(notdir $(confh)))_H \
+)))
+
+kern_config_h_stamp_files = $(addprefix $(KERN_OBJS_DIR)/,$(notdir $(addsuffix .stamp,$(config_include_HEADERS) $(LOCAL_CONFIG_H))))
+
+# Add some hooks to standard passes
+include-pass-local: $(kern_config_h_stamp_files)
+
+endif
 
 clean-local: clean-local-config-h
 
 clean-local-config-h:
-       @$(foreach confh,$(addprefix $(USER_INCLUDE_DIR)/,$(config_include_HEADERS)),\
-           if [ -e $(confh) ] ; then touch -t 200001010101 $(confh) ; fi ; \
+       @$(foreach confh,$(config_h_stamp_files) $(kern_config_h_stamp_files),\
+           if [ -e $(confh) ] ; then rm $(confh) ; fi ; \
        )