BUILD: Makefile: disable -Wunused-label

It's becoming extremely tricky not to make gcc warn about unused labels
with support for openssl 1.1 and 1.1.1, because some error paths only exist
for certain versions. Latest patch causes a warning for me on 1.0.2. There
is no real point it warning about an unused error label so let's disable
this warning.

diff --git a/Makefile b/Makefile
index ed93d29373135481ff6312253615f41fa60fbbd3..0ab30675b6865eda52d9311715092a754ea5202c 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -149,6 +149,7 @@ SPEC_CFLAGS += $(call cc-opt,-fwrapv)
 SPEC_CFLAGS += $(call cc-nowarn,format-truncation)
 SPEC_CFLAGS += $(call cc-nowarn,address-of-packed-member)
 SPEC_CFLAGS += $(call cc-nowarn,null-dereference)
+SPEC_CFLAGS += $(call cc-nowarn,unused-label)
 
 #### Memory usage tuning
 # If small memory footprint is required, you can reduce the buffer size. There