--- open-iscsi-2.1.1/libopeniscsiusr/Makefile.orig	2020-02-26 20:07:13.000000000 +0100
+++ open-iscsi-2.1.1/libopeniscsiusr/Makefile	2020-07-14 18:13:07.144477155 +0200
@@ -44,7 +44,7 @@
 OBJS = context.o misc.o session.o sysfs.o iface.o idbm.o node.o default.o
 
 CFLAGS ?= -O2 -g
-CFLAGS += -Wall -Werror -Wextra -fvisibility=hidden -fPIC
+CFLAGS += -Wall -Wextra -fvisibility=hidden -fPIC
 CFLAGS += $(shell $(PKG_CONFIG) --cflags libkmod)
 
 LDFLAGS += $(shell $(PKG_CONFIG) --libs libkmod)

--- open-iscsi-2.1.1/usr/Makefile	2020-02-26 20:07:13.000000000 +0100
+++ open-iscsi-2.1.1/usr/Makefile	2020-07-14 17:56:48.298477155 +0200
@@ -35,7 +35,7 @@
 PKG_CONFIG = /usr/bin/pkg-config
 
 CFLAGS ?= -O2 -g
-WARNFLAGS ?= -Wall -Wextra -Werror -Wstrict-prototypes -fno-common
+WARNFLAGS ?= -Wall -Wextra -Wstrict-prototypes -fno-common
 CFLAGS += $(WARNFLAGS) -I../include -I. -D_GNU_SOURCE \
 	  -I$(TOPDIR)/libopeniscsiusr
 CFLAGS += $(shell $(PKG_CONFIG) --cflags libkmod)