88cd2d41ac
All plugins in plugin-files will be dlopened, allowing them to statically construct instances of the various Register* types Nix supports.
162 lines
5.4 KiB
Makefile
162 lines
5.4 KiB
Makefile
libs-list :=
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ifeq ($(OS), Darwin)
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SO_EXT = dylib
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else
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ifeq (CYGWIN,$(findstring CYGWIN,$(OS)))
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SO_EXT = dll
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else
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SO_EXT = so
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endif
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endif
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# Build a library with symbolic name $(1). The library is defined by
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# various variables prefixed by ‘$(1)_’:
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#
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# - $(1)_NAME: the name of the library (e.g. ‘libfoo’); defaults to
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# $(1).
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#
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# - $(1)_DIR: the directory where the (non-installed) library will be
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# placed.
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#
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# - $(1)_SOURCES: the source files of the library.
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#
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# - $(1)_CFLAGS: additional C compiler flags.
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#
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# - $(1)_CXXFLAGS: additional C++ compiler flags.
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#
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# - $(1)_ORDER_AFTER: a set of targets on which the object files of
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# this libraries will have an order-only dependency.
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#
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# - $(1)_LIBS: the symbolic names of other libraries on which this
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# library depends.
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#
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# - $(1)_ALLOW_UNDEFINED: if set, the library is allowed to have
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# undefined symbols. Has no effect for static libraries.
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#
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# - $(1)_LDFLAGS: additional linker flags.
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#
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# - $(1)_LDFLAGS_PROPAGATED: additional linker flags, also propagated
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# to the linking of programs/libraries that use this library.
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#
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# - $(1)_FORCE_INSTALL: if defined, the library will be installed even
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# if it's not needed (i.e. dynamically linked) by a program.
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#
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# - $(1)_INSTALL_DIR: the directory where the library will be
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# installed. Defaults to $(libdir).
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#
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# - $(1)_EXCLUDE_FROM_LIBRARY_LIST: if defined, the library will not
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# be automatically marked as a dependency of the top-level all
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# target andwill not be listed in the make help output. This is
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# useful for libraries built solely for testing, for example.
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#
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# - BUILD_SHARED_LIBS: if equal to ‘1’, a dynamic library will be
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# built, otherwise a static library.
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define build-library
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$(1)_NAME ?= $(1)
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_d := $(buildprefix)$$(strip $$($(1)_DIR))
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_srcs := $$(sort $$(foreach src, $$($(1)_SOURCES), $$(src)))
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$(1)_OBJS := $$(addprefix $(buildprefix), $$(addsuffix .o, $$(basename $$(_srcs))))
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_libs := $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_PATH))
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ifeq (CYGWIN,$(findstring CYGWIN,$(OS)))
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$(1)_INSTALL_DIR ?= $$(bindir)
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else
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$(1)_INSTALL_DIR ?= $$(libdir)
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endif
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$(1)_LDFLAGS_USE :=
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$(1)_LDFLAGS_USE_INSTALLED :=
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$$(eval $$(call create-dir, $$(_d)))
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ifeq ($(BUILD_SHARED_LIBS), 1)
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ifdef $(1)_ALLOW_UNDEFINED
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ifeq ($(OS), Darwin)
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$(1)_LDFLAGS += -undefined suppress -flat_namespace
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endif
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else
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ifneq ($(OS), Darwin)
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ifneq (CYGWIN,$(findstring CYGWIN,$(OS)))
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$(1)_LDFLAGS += -Wl,-z,defs
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endif
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endif
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endif
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ifneq ($(OS), Darwin)
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$(1)_LDFLAGS += -Wl,-soname=$$($(1)_NAME).$(SO_EXT)
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endif
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$(1)_PATH := $$(_d)/$$($(1)_NAME).$(SO_EXT)
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$$($(1)_PATH): $$($(1)_OBJS) $$(_libs) | $$(_d)/
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$$(trace-ld) $(CXX) -o $$(abspath $$@) -shared $$(GLOBAL_LDFLAGS) $$($(1)_OBJS) $$($(1)_LDFLAGS) $$($(1)_LDFLAGS_PROPAGATED) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE)) $$($(1)_LDFLAGS_UNINSTALLED)
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ifneq ($(OS), Darwin)
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$(1)_LDFLAGS_USE += -Wl,-rpath,$$(abspath $$(_d))
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endif
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$(1)_LDFLAGS_USE += -L$$(_d) -l$$(patsubst lib%,%,$$(strip $$($(1)_NAME)))
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$(1)_INSTALL_PATH := $(DESTDIR)$$($(1)_INSTALL_DIR)/$$($(1)_NAME).$(SO_EXT)
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_libs_final := $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_INSTALL_PATH))
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$$(eval $$(call create-dir, $$($(1)_INSTALL_DIR)))
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$$($(1)_INSTALL_PATH): $$($(1)_OBJS) $$(_libs_final) | $(DESTDIR)$$($(1)_INSTALL_DIR)/
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$$(trace-ld) $(CXX) -o $$@ -shared $$(GLOBAL_LDFLAGS) $$($(1)_OBJS) $$($(1)_LDFLAGS) $$($(1)_LDFLAGS_PROPAGATED) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE_INSTALLED))
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$(1)_LDFLAGS_USE_INSTALLED += -L$$(DESTDIR)$$($(1)_INSTALL_DIR) -l$$(patsubst lib%,%,$$(strip $$($(1)_NAME)))
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ifneq ($(OS), Darwin)
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ifeq ($(SET_RPATH_TO_LIBS), 1)
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$(1)_LDFLAGS_USE_INSTALLED += -Wl,-rpath,$$($(1)_INSTALL_DIR)
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else
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$(1)_LDFLAGS_USE_INSTALLED += -Wl,-rpath-link,$$($(1)_INSTALL_DIR)
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endif
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endif
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ifdef $(1)_FORCE_INSTALL
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install: $$($(1)_INSTALL_PATH)
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endif
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else
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$(1)_PATH := $$(_d)/$$($(1)_NAME).a
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$$($(1)_PATH): $$($(1)_OBJS) | $$(_d)/
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$(trace-ar) ar crs $$@ $$?
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$(1)_LDFLAGS_USE += $$($(1)_PATH) $$($(1)_LDFLAGS)
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$(1)_INSTALL_PATH := $$(libdir)/$$($(1)_NAME).a
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endif
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$(1)_LDFLAGS_USE += $$($(1)_LDFLAGS_PROPAGATED)
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$(1)_LDFLAGS_USE_INSTALLED += $$($(1)_LDFLAGS_PROPAGATED)
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# Propagate CFLAGS and CXXFLAGS to the individual object files.
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$$(foreach obj, $$($(1)_OBJS), $$(eval $$(obj)_CFLAGS=$$($(1)_CFLAGS)))
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$$(foreach obj, $$($(1)_OBJS), $$(eval $$(obj)_CXXFLAGS=$$($(1)_CXXFLAGS)))
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# Make each object file depend on the common dependencies.
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$$(foreach obj, $$($(1)_OBJS), $$(eval $$(obj): $$($(1)_COMMON_DEPS) $$(GLOBAL_COMMON_DEPS)))
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# Make each object file have order-only dependencies on the common
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# order-only dependencies. This includes the order-only dependencies
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# of libraries we're depending on.
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$(1)_ORDER_AFTER_CLOSED = $$($(1)_ORDER_AFTER) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_ORDER_AFTER_CLOSED))
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$$(foreach obj, $$($(1)_OBJS), $$(eval $$(obj): | $$($(1)_ORDER_AFTER_CLOSED) $$(GLOBAL_ORDER_AFTER)))
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# Include .dep files, if they exist.
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$(1)_DEPS := $$(foreach fn, $$($(1)_OBJS), $$(call filename-to-dep, $$(fn)))
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-include $$($(1)_DEPS)
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ifndef $(1)_EXCLUDE_FROM_LIBRARY_LIST
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libs-list += $$($(1)_PATH)
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endif
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clean-files += $$(_d)/*.a $$(_d)/*.$(SO_EXT) $$(_d)/*.o $$(_d)/.*.dep $$($(1)_DEPS) $$($(1)_OBJS)
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dist-files += $$(_srcs)
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endef
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