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diff --git a/Makefile.inc b/Makefile.inc
index 6b45430..c47f82f 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -96,7 +96,7 @@ 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 \
+WARNFLAGS := -Wall -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) \
diff --git a/create-config.mk b/create-config.mk
index 4d318b9..1d4ff2d 100644
--- a/create-config.mk
+++ b/create-config.mk
@@ -64,7 +64,7 @@ check_var = $(shell \
# gcc 4.8 compiles blacklist.c only with -Wno-missing-field-initializers
TEST_MISSING_INITIALIZERS = $(shell \
echo 'struct A {int a, b;}; struct B {struct A a; int b;} b = {.a.a=1};' | \
- $(CC) -c -Werror -Wmissing-field-initializers -o /dev/null -xc - >/dev/null 2>&1 \
+ $(CC) -c -Wmissing-field-initializers -o /dev/null -xc - >/dev/null 2>&1 \
|| echo -Wno-missing-field-initializers)
# gcc 4.8.4 and certain versions of liburcu fail to compile this with -Werror=type-limits
@@ -136,7 +136,7 @@ SYSTEMD := $(strip $(or $(shell $(PKG_CONFIG) --modversion libsystemd 2>/dev/nul
# Evaluates to "option" if yes, and "fallback" otherwise.
TEST_CC_OPTION = $(shell \
if echo 'int main(void){return 0;}' | \
- $(CC) -o /dev/null -c -Werror "$(1)" -xc - >/dev/null 2>&1; \
+ $(CC) -o /dev/null -c "$(1)" -xc - >/dev/null 2>&1; \
then \
echo "$(1)"; \
else \
@@ -148,11 +148,11 @@ TEST_CC_OPTION = $(shell \
# but it doesn't seem to make a difference wrt the compilation result.
FORTIFY_OPT := $(shell \
if /bin/echo -e '$(__HASH__)include <string.h>\nint main(void) { return 0; }' | \
- $(CC) -o /dev/null $(OPTFLAGS) -c -Werror -D_FORTIFY_SOURCE=3 -xc - 2>/dev/null; \
+ $(CC) -o /dev/null $(OPTFLAGS) -c -D_FORTIFY_SOURCE=3 -xc - 2>/dev/null; \
then \
echo "-D_FORTIFY_SOURCE=3"; \
elif /bin/echo -e '$(__HASH__)include <string.h>\nint main(void) { return 0; }' | \
- $(CC) -o /dev/null $(OPTFLAGS) -c -Werror -D_FORTIFY_SOURCE=2 -xc - 2>/dev/null; \
+ $(CC) -o /dev/null $(OPTFLAGS) -c -D_FORTIFY_SOURCE=2 -xc - 2>/dev/null; \
then \
echo "-D_FORTIFY_SOURCE=2"; \
fi)
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