Add support for building shared libraries on Mac OS X

This commit is contained in:
Eelco Dolstra 2014-01-09 22:14:34 +01:00
parent 70d8e8fdde
commit e991ab942b
2 changed files with 21 additions and 6 deletions

3
lib.mk
View file

@ -9,6 +9,7 @@ default: all
QUIET = @
bin_SCRIPTS :=
noinst_SCRIPTS :=
OS = $(shell uname -s)
# Default installation paths.
@ -27,7 +28,9 @@ BUILD_SHARED_LIBS ?= 1
ifeq ($(BUILD_SHARED_LIBS), 1)
GLOBAL_CFLAGS += -fPIC
GLOBAL_CXXFLAGS += -fPIC
ifneq ($(OS), Darwin)
GLOBAL_LDFLAGS += -Wl,--no-copy-dt-needed-entries
endif
endif

View file

@ -1,5 +1,11 @@
libs_list :=
ifeq ($(OS), Darwin)
SO_EXT = dylib
else
SO_EXT = so
endif
# Build a library with symbolic name $(1). The library is defined by
# various variables prefixed by $(1)_:
#
@ -46,18 +52,24 @@ define build-library =
ifeq ($(BUILD_SHARED_LIBS), 1)
ifndef $(1)_ALLOW_UNDEFINED
ifdef $(1)_ALLOW_UNDEFINED
ifeq ($(OS), Darwin)
$(1)_LDFLAGS += -undefined suppress -flat_namespace
endif
else
ifneq ($(OS), Darwin)
$(1)_LDFLAGS += -z defs
endif
endif
$(1)_PATH := $$(_d)/$$($(1)_NAME).so
$(1)_PATH := $$(_d)/$$($(1)_NAME).$(SO_EXT)
$$($(1)_PATH): $$($(1)_OBJS) $$(_libs)
$(QUIET) $(CXX) -o $$@ -shared $(GLOBAL_LDFLAGS) $$($(1)_OBJS) $$($(1)_LDFLAGS) $$($(1)_LDFLAGS_PROPAGATED) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE))
$(1)_LDFLAGS_USE += -L$$(_d) -Wl,-rpath,$$(abspath $$(_d)) -l$$(patsubst lib%,%,$$(strip $$($(1)_NAME)))
$(1)_INSTALL_PATH := $$($(1)_INSTALL_DIR)/$$($(1)_NAME).so
$(1)_INSTALL_PATH := $$($(1)_INSTALL_DIR)/$$($(1)_NAME).$(SO_EXT)
_libs_final := $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_INSTALL_PATH))
@ -99,6 +111,6 @@ define build-library =
-include $$($(1)_DEPS)
libs_list += $$($(1)_PATH)
clean_files += $$(_d)/*.a $$(_d)/*.so $$(_d)/*.o $$(_d)/*.dep $$($(1)_DEPS) $$($(1)_OBJS)
clean_files += $$(_d)/*.a $$(_d)/*.$(SO_EXT) $$(_d)/*.o $$(_d)/*.dep $$($(1)_DEPS) $$($(1)_OBJS)
dist_files += $$(_srcs)
endef