1# SPDX-License-Identifier: GPL-2.0-only
 2
 3define allow-override
 4  $(if $(or $(findstring environment,$(origin $(1))),\
 5            $(findstring command line,$(origin $(1)))),,\
 6    $(eval $(1) = $(2)))
 7endef
 8
 9# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
10$(call allow-override,CC,$(CROSS_COMPILE)gcc)
11$(call allow-override,AR,$(CROSS_COMPILE)ar)
12$(call allow-override,STRIP,$(CROSS_COMPILE)strip)
13$(call allow-override,PKG_CONFIG,pkg-config)
14$(call allow-override,LD_SO_CONF_PATH,/etc/ld.so.conf.d/)
15$(call allow-override,LDCONFIG,ldconfig)
16export CC AR STRIP PKG_CONFIG LD_SO_CONF_PATH LDCONFIG
17
18FOPTS		:=-flto=auto -ffat-lto-objects -fexceptions -fstack-protector-strong	\
19		-fasynchronous-unwind-tables -fstack-clash-protection
20WOPTS		:=	-O -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2	\
21		-Wp,-D_GLIBCXX_ASSERTIONS -Wno-maybe-uninitialized
22
23ifeq ($(CC),clang)
24  FOPTS		:= $(filter-out -flto=auto -ffat-lto-objects, $(FOPTS))
25  WOPTS		:= $(filter-out -Wno-maybe-uninitialized, $(WOPTS))
26endif
27
28INCLUDE		:= -Iinclude
29CFLAGS		:= -g -DVERSION=\"$(VERSION)\" $(FOPTS) $(WOPTS) $(EXTRA_CFLAGS) $(INCLUDE)
30LDFLAGS		:= -ggdb $(EXTRA_LDFLAGS)
31
32INSTALL		:= install
33MKDIR		:= mkdir
34STRIP		:= strip
35BINDIR		:= /usr/bin
36
37.PHONY: install
38install: doc_install
39	$(Q)$(MKDIR) -p $(DESTDIR)$(BINDIR)
40	$(call QUIET_INSTALL,rv)$(INSTALL) $(OUTPUT)rv -m 755 $(DESTDIR)$(BINDIR)
41	$(Q)@$(STRIP) $(DESTDIR)$(BINDIR)/rv
42
43.PHONY: doc doc_clean doc_install
44doc:
45	$(MAKE) -C $(DOCSRC)
46
47doc_clean:
48	$(MAKE) -C $(DOCSRC) clean
49
50doc_install:
51	$(MAKE) -C $(DOCSRC) install