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#
# Merge libusual sources with target sources
#
# Usage:
# USUAL_DIR = <libusual source tree>
#
# <target>_EMBED_LIBUSUAL = 1
#
# It adds module sources into <target>_SOURCES
# and -I$(USUAL_DIR) to _CPPFLAGS.
#
##
## Utility functions for libusual link
##
_USUAL_DIR = $(call JoinPath,$(srcdir),$(USUAL_DIR))
_USUAL_DIR2 = $(call JoinPath,$(_USUAL_DIR),usual)
# module names from sources (plus headers)
UsualMods = $(trace1)$(shell $(_USUAL_DIR)/find_modules.sh $(_USUAL_DIR) $(sort $(wildcard $(addprefix $(srcdir)/,$(1)))))
# full-path sources based on module list
UsualSrcsFull = $(trace1)$(sort $(wildcard $(addprefix $(_USUAL_DIR2)/,$(addsuffix *.[ch],$(1)))))
# remove USUAL_DIR
UsualStrip = $(trace1)$(subst $(_USUAL_DIR)/,,$(1))
# simple-path sources based on module list
UsualSrcs = $(call UsualStrip,$(call UsualSrcsFull,$(1)))
# usual sources from user source file list
UsualSources = $(if $(1),$(call UsualSrcsFull,$(call UsualMods,$(1))))
# 1=cleantgt,2=rawtgt,3=prim,4=dest,5=flags
define EmbedLibUsual
$(trace5)
# embed libusual objects directly
$(IFEQ) ($$($(1)_EMBED_LIBUSUAL),1)
$(1)_SOURCES := $$($(1)_SOURCES) $$(call UsualSources, $$($(1)_SOURCES))
EXTRA_$(1)_SOURCES := $$(EXTRA_$(1)_SOURCES) \
$$(call UsualSources, \
$$(EXTRA_$(1)_SOURCES) \
$$(nodist_$(1)_SOURCES) \
$$(nodist_EXTRA_$(1)_SOURCES))
$(1)_CPPFLAGS += -I$$(USUAL_DIR)
$(ENDIF)
endef
AM_TARGET_HOOKS += EmbedLibUsual
EXTRA_DIST += $(_USUAL_DIR)/find_modules.sh $(_USUAL_DIR)/usual/config.h.in
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