diff options
Diffstat (limited to 'third_party/nix/mk/programs.mk')
| -rw-r--r-- | third_party/nix/mk/programs.mk | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/third_party/nix/mk/programs.mk b/third_party/nix/mk/programs.mk new file mode 100644 index 0000000000..d93df44680 --- /dev/null +++ b/third_party/nix/mk/programs.mk @@ -0,0 +1,79 @@ +programs-list := + +# Build a program with symbolic name $(1). The program is defined by +# various variables prefixed by ‘$(1)_’: +# +# - $(1)_DIR: the directory where the (non-installed) program will be +# placed. +# +# - $(1)_SOURCES: the source files of the program. +# +# - $(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 program will have an order-only dependency. +# +# - $(1)_LIBS: the symbolic names of libraries on which this program +# depends. +# +# - $(1)_LDFLAGS: additional linker flags. +# +# - $(1)_INSTALL_DIR: the directory where the program will be +# installed; defaults to $(bindir). +define build-program + _d := $(buildprefix)$$($(1)_DIR) + _srcs := $$(sort $$(foreach src, $$($(1)_SOURCES), $$(src))) + $(1)_OBJS := $$(addprefix $(buildprefix), $$(addsuffix .o, $$(basename $$(_srcs)))) + _libs := $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_PATH)) + $(1)_PATH := $$(_d)/$(1) + + $$(eval $$(call create-dir, $$(_d))) + + $$($(1)_PATH): $$($(1)_OBJS) $$(_libs) | $$(_d)/ + $$(trace-ld) $(CXX) -o $$@ $$(LDFLAGS) $$(GLOBAL_LDFLAGS) $$($(1)_OBJS) $$($(1)_LDFLAGS) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE)) + + $(1)_INSTALL_DIR ?= $$(bindir) + $(1)_INSTALL_PATH := $$($(1)_INSTALL_DIR)/$(1) + + $$(eval $$(call create-dir, $$($(1)_INSTALL_DIR))) + + install: $(DESTDIR)$$($(1)_INSTALL_PATH) + + ifeq ($(BUILD_SHARED_LIBS), 1) + + _libs_final := $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_INSTALL_PATH)) + + $(DESTDIR)$$($(1)_INSTALL_PATH): $$($(1)_OBJS) $$(_libs_final) | $(DESTDIR)$$($(1)_INSTALL_DIR)/ + $$(trace-ld) $(CXX) -o $$@ $$(LDFLAGS) $$(GLOBAL_LDFLAGS) $$($(1)_OBJS) $$($(1)_LDFLAGS) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE_INSTALLED)) + + else + + $(DESTDIR)$$($(1)_INSTALL_PATH): $$($(1)_PATH) | $(DESTDIR)$$($(1)_INSTALL_DIR)/ + install -t $(DESTDIR)$$($(1)_INSTALL_DIR) $$< + + endif + + # 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) + + programs-list += $$($(1)_PATH) + clean-files += $$($(1)_PATH) $$(_d)/*.o $$(_d)/.*.dep $$($(1)_DEPS) $$($(1)_OBJS) + dist-files += $$(_srcs) +endef |