Makefile.osx-helper

getdylibs = $(shell $(OTOOL) -L $(1) | grep version | cut -f 1 -d ' ' | grep -v \/System\/Library | grep -v \/usr\/lib | grep -v executable_path)
dest = $(macosx_bundle_path)/MacOS/$(notdir $(1))

# Let's create a list of all libraries used at runtime, starting with the
# application.

FILES :=
NEWFILES := $(USDX_BIN)

define recurse
FILES := $$(FILES) $$(NEWFILES)
NEWFILES := $$(filter-out $$(FILES),$$(sort $$(foreach dylib,$$(NEWFILES),$$(call getdylibs,$$(dylib)))))
ifneq ($$(NEWFILES),)
$$(eval $$(recurse))
endif
endef

$(eval $(recurse))

# Libavutil is referenced as /usr/local/opt/ffmpeg@2.8/lib/libavutil.54.dylib by
# ultrastardx and as /usr/local/Cellar/ffmpeg@2.8/2.8.11/lib/libavutil.54.dylib
# by libavcodec. We don't want make to call the installdylib rule for both in
# parallel. Handle this by creating a variable libavutil.54.dylib that is
# assigned the full path. The last one wins.

define removedupes
$(1) := $(2)
endef

$(foreach dylib,$(FILES),$(eval $(call removedupes,$(notdir $(dylib)),$(dylib))))
FILES := $(sort $(foreach dylib,$(FILES),$($(notdir $(dylib)))))

# The first rule in this file and thus the default target:
all: $(foreach dylib,$(FILES),$(call dest,$(dylib)))

define changeimport
	@echo change the install name for $(2)
	@$(INSTALL_NAME_TOOL) -change $(2) @executable_path/$(notdir $(2)) $(1)

endef

define installdylib
$(call dest,$(1)): $(1)
	@echo work on $(1)
	@$(INSTALL) -m 755  $(1) $(call dest,$(1))
ifneq ($(1),$(USDX_BIN))
	@$(INSTALL_NAME_TOOL) -id @executable_path/$(notdir $(1)) $(call dest,$(1))
endif
	$$(foreach dylib,$$(call getdylibs,$(1)),$$(call changeimport,$(call dest,$(1)),$$(dylib)))
endef

$(foreach dylib,$(FILES),$(eval $(call installdylib,$(dylib))))