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epics-base/configure/RULES_EXPAND
2018-10-26 17:04:53 -05:00

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#*************************************************************************
# Copyright (c) 2011 UChicago Argonne LLC, as Operator of Argonne
# National Laboratory.
# Copyright (c) 2002 The Regents of the University of California, as
# Operator of Los Alamos National Laboratory.
# EPICS BASE is distributed subject to a Software License Agreement found
# in the file LICENSE that is included with this distribution.
#*************************************************************************
# RULES_EXPAND
vpath %@ $(USR_VPATH) $(ALL_SRC_DIRS)
#---------------------------------------------------------------
# Variable expansion
# Default settings
EXPAND_TOOL ?= $(PERL) $(TOOLS)/expandVars.pl
EXPANDFLAGS += -t $(INSTALL_LOCATION) -a $(T_A)
EXPANDFLAGS += $(addprefix -D ,$(EXPAND_VARS))
# The names of files to be expanded must end with '@'
EXPANDED = $(EXPAND:%@=%)
$(EXPANDED): %: %@
$(ECHO) "Expanding $< to $@"
@$(RM) $@
@$(EXPAND_TOOL) $(EXPANDFLAGS) $($@_EXPANDFLAGS) $< $@
clean: expand_clean
expand_clean:
@$(RM) $(EXPANDED)
.PRECIOUS: $(EXPANDED)
.PHONY: expand_clean
#---------------------------------------------------------------
# Assemblies (files assembled from snippets)
ASSEMBLE_TOOL ?= $(PERL) $(TOOLS)/assembleSnippets.pl
define COMMON_ASSEMBLY_template
$1_SNIPPETS += $$(foreach dir, .. $$(SRC_DIRS), \
$$(wildcard $$(dir)/$$($1_PATTERN)))
$(COMMON_DIR)/$1: $$($1_SNIPPETS)
$(ECHO) "Assembling common file $$@ from snippets"
@$(RM) $1
$(ASSEMBLE_TOOL) -o $1 $$^
@$(MV) $1 $$@
endef
$(foreach asy, $(COMMON_ASSEMBLIES), \
$(eval $(call COMMON_ASSEMBLY_template,$(strip $(asy)))))
define ASSEMBLY_template
$1_SNIPPETS += $$(foreach dir, .. $$(SRC_DIRS), \
$$(wildcard $$(dir)/$$($1_PATTERN)))
$1: $$($1_SNIPPETS)
$(ECHO) "Assembling file $$@ from snippets"
@$(RM) $$@
$(ASSEMBLE_TOOL) -o $$@ $$^
endef
$(foreach asy, $(ASSEMBLIES), \
$(eval $(call ASSEMBLY_template,$(strip $(asy)))))
define ASSEMBLY_DEP_template
$1$(DEP):
@echo $1: > $$@
endef
$(foreach asy, $(sort $(COMMON_ASSEMBLIES) $(ASSEMBLIES)), \
$(eval $(call ASSEMBLY_DEP_template,$(strip $(asy)))))