BUILD: makefile: support ENGINE_CFLAGS
The CFLAGS appended by USE_ENGINE can now be overridden using
ENGINE_CFLAGS. These would have been better located inside the
OPENSSL stuff but it's a bit too late now.
diff --git a/Makefile b/Makefile
index a1aaeef..adf1d13 100644
--- a/Makefile
+++ b/Makefile
@@ -582,7 +582,7 @@
# engine support, and this option is made to silence them. Better use it
# only when absolutely necessary, until there's a viable alternative to the
# engine API.
- OPTIONS_CFLAGS += -DOPENSSL_SUPPRESS_DEPRECATED
+ ENGINE_CFLAGS = -DOPENSSL_SUPPRESS_DEPRECATED
endif
ifneq ($(USE_QUIC),)