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 | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/Makefile.inc b/Makefile.inc
index 33dbb99c..94e0ec85 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -95,11 +95,23 @@ SYSTEMD_LIBDEPS := $(if $(SYSTEMD),$(if $(shell test $(SYSTEMD) -gt 209 && echo
 MODPROBE_UNIT := $(shell test "0$(SYSTEMD)" -lt 245 2>/dev/null || \
 			echo "modprobe@dm_multipath.service")
 
-OPTFLAGS	:= -O2 -g $(STACKPROT) --param=ssp-buffer-size=4
-WARNFLAGS	:= -Werror -Wall -Wextra -Wformat=2 $(WFORMATOVERFLOW) -Werror=implicit-int \
+ifndef RPM_OPT_FLAGS
+	OPTFLAGS := -O2 -g $(STACKPROT) --param=ssp-buffer-size=4 \
+		    -Wall $(FORTIFY_OPT) -fexceptions -grecord-gcc-switches \
+		    -fasynchronous-unwind-tables
+	ifeq ($(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 $(WFORMATOVERFLOW) -Werror=implicit-int \
 		  -Werror=implicit-function-declaration -Werror=format-security \
-		  $(WNOCLOBBERED) -Werror=cast-qual $(ERROR_DISCARDED_QUALIFIERS) $(W_URCU_TYPE_LIMITS)
-CPPFLAGS	:= $(FORTIFY_OPT) $(CPPFLAGS) $(D_URCU_VERSION) \
+		  $(WNOCLOBBERED) -Werror=cast-qual $(ERROR_DISCARDED_QUALIFIERS) $(W_URCU_TYPE_LIMITS) -Wstrict-prototypes
+CPPFLAGS	:= $(CPPFLAGS) $(D_URCU_VERSION) \
 		   -D_FILE_OFFSET_BITS=64 \
 		   -DBIN_DIR=\"$(bindir)\" -DMULTIPATH_DIR=\"$(TGTDIR)$(plugindir)\" \
 		   -DRUNTIME_DIR=\"$(runtimedir)\" -DCONFIG_DIR=\"$(TGTDIR)$(configdir)\" \
@@ -109,7 +121,7 @@ CFLAGS		:= -std=gnu99 $(CFLAGS) $(OPTFLAGS) $(WARNFLAGS) -pipe
 BIN_CFLAGS	:= -fPIE -DPIE
 LIB_CFLAGS	:= -fPIC
 SHARED_FLAGS	:= -shared
-LDFLAGS		:= $(LDFLAGS) -Wl,-z,relro -Wl,-z,now -Wl,-z,defs
+LDFLAGS		:= $(LDFLAGS) $(RPM_LD_FLAGS) -Wl,-z,relro -Wl,-z,now -Wl,-z,defs
 BIN_LDFLAGS	:= -pie
 
 # Source code directories. Don't modify.