Makefile: add a possibility to disable -Werror
Setting E=0 in the make command line disables -Werror in CPPFLAGS.
Signed-off-by: Yann Gautier <yann.gautier@st.com>
diff --git a/Makefile b/Makefile
index 5841345..6f14825 100644
--- a/Makefile
+++ b/Makefile
@@ -226,8 +226,12 @@
WARNINGS := $(WARNING1) $(WARNING2) $(WARNING3)
endif
+ifneq (${E},0)
+ERRORS := -Werror
+endif
+
CPPFLAGS = ${DEFINES} ${INCLUDES} ${MBEDTLS_INC} -nostdinc \
- -Wmissing-include-dirs -Werror $(WARNINGS)
+ -Wmissing-include-dirs $(ERRORS) $(WARNINGS)
ASFLAGS += $(CPPFLAGS) $(ASFLAGS_$(ARCH)) \
-D__ASSEMBLY__ -ffreestanding \
-Wa,--fatal-warnings