device-mapper-multipath/0128-RH-use-rpm-optflags-if-present.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 19 Apr 2017 06:10:01 -0500
Subject: [PATCH] RH: use rpm optflags if present

Use the passed in optflags when compiling as an RPM, and keep the
default flags as close as possible to the current fedora flags, while
still being generic.

Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
 Makefile.inc | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/Makefile.inc b/Makefile.inc
index 24e943d5..e978d306 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -90,15 +90,27 @@ TEST_CC_OPTION = $(shell \
 		echo "$(2)"; \
 	fi)
 
-STACKPROT := $(call TEST_CC_OPTION,-fstack-protector-strong,-fstack-protector)
 ERROR_DISCARDED_QUALIFIERS := $(call TEST_CC_OPTION,-Werror=discarded-qualifiers,)
 WNOCLOBBERED := $(call TEST_CC_OPTION,-Wno-clobbered -Wno-error=clobbered,)
 
-OPTFLAGS	:= -O2 -g $(STACKPROT) --param=ssp-buffer-size=4
-WARNFLAGS	:= -Werror -Wall -Wextra -Wformat=2 -Werror=implicit-int \
+ifndef RPM_OPT_FLAGS
+	STACKPROT := $(call TEST_CC_OPTION,-fstack-protector-strong,-fstack-protector)
+	OPTFLAGS := -O2 -g -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions \
+		    $(STACKPROT) -grecord-gcc-switches \
+		    -fasynchronous-unwind-tables --param=ssp-buffer-size=4
+	ifeq ($(shell test -f /usr/lib/rpm/redhat/redhat-hardened-cc1 && echo 1),1)
+		OPTFLAGS += -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1
+	endif
+	ifeq ($(shell test -f /usr/lib/rpm/redhat/redhat-annobin-cc1 && echo 1),1)
+		OPTFLAGS += -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1
+	endif
+else
+	OPTFLAGS := $(RPM_OPT_FLAGS) --param=ssp-buffer-size=4
+endif
+WARNFLAGS	:= -Werror -Wextra -Wformat=2 -Werror=implicit-int \
 		  -Werror=implicit-function-declaration -Werror=format-security \
-		  $(WNOCLOBBERED) -Werror=cast-qual $(ERROR_DISCARDED_QUALIFIERS)
-CPPFLAGS	:= -Wp,-D_FORTIFY_SOURCE=2 
+		  $(WNOCLOBBERED) -Werror=cast-qual $(ERROR_DISCARDED_QUALIFIERS) \
+		  -Wstrict-prototypes
 CFLAGS		:= --std=gnu99 $(CFLAGS) $(OPTFLAGS) $(WARNFLAGS) -pipe \
 		   -DBIN_DIR=\"$(bindir)\" -DLIB_STRING=\"${LIB}\" -DRUN_DIR=\"${RUN}\" \
 		   -MMD -MP
@@ -136,4 +148,4 @@ check_file = $(shell \
 
 %.o:	%.c
 	@echo building $@ because of $?
-	$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
+	$(CC) $(CFLAGS) -c -o $@ $<
-- 
2.17.2