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1# SPDX-License-Identifier: GPL-2.0-only2 3define allow-override4 $(if $(or $(findstring environment,$(origin $(1))),\5 $(findstring command line,$(origin $(1)))),,\6 $(eval $(1) = $(2)))7endef8 9# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.10$(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 LDCONFIG17 18FOPTS :=-flto=auto -ffat-lto-objects -fexceptions -fstack-protector-strong \19 -fasynchronous-unwind-tables -fstack-clash-protection20WOPTS := -O -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 \21 -Wp,-D_GLIBCXX_ASSERTIONS -Wno-maybe-uninitialized22 23ifeq ($(CC),clang)24 FOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(FOPTS))25 WOPTS := $(filter-out -Wno-maybe-uninitialized, $(WOPTS))26endif27 28INCLUDE := -Iinclude/29CFLAGS := -g -DVERSION=\"$(VERSION)\" $(FOPTS) $(WOPTS) $(EXTRA_CFLAGS) $(INCLUDE)30LDFLAGS := -ggdb $(EXTRA_LDFLAGS)31 32INSTALL := install33MKDIR := mkdir34STRIP := strip35BINDIR := /usr/bin36 37.PHONY: install38install: doc_install39 $(Q)$(MKDIR) -p $(DESTDIR)$(BINDIR)40 $(call QUIET_INSTALL,rv)$(INSTALL) $(OUTPUT)rv -m 755 $(DESTDIR)$(BINDIR)41 $(Q)@$(STRIP) $(DESTDIR)$(BINDIR)/rv42 43.PHONY: doc doc_clean doc_install44doc:45 $(MAKE) -C $(DOCSRC)46 47doc_clean:48 $(MAKE) -C $(DOCSRC) clean49 50doc_install:51 $(MAKE) -C $(DOCSRC) install52