0
0
Fork 0
forked from lix-project/lix
lix/mk/libraries.mk
Matthew Bauer 7ce1fae59f Support --disable-shared flag.
This tells Nix to not build the shared libraries.
2019-02-13 00:03:10 -05:00

163 lines
5.4 KiB
Makefile
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

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