Index: pacemaker-2.0.5+20210111.c600d9092/configure.ac
===================================================================
--- pacemaker-2.0.5+20210111.c600d9092.orig/configure.ac
+++ pacemaker-2.0.5+20210111.c600d9092/configure.ac
@@ -1638,10 +1638,10 @@ dnl otherwise none of both
           [
               AC_DEFINE([GCC_FORMAT_NONLITERAL_CHECKING_ENABLED], [],
                         [gcc can complain about nonliterals in format])
-              EXTRA_FLAGS="$EXTRA_FLAGS -Wformat=2 -Wformat-nonliteral"
+              EXTRA_FLAGS="$EXTRA_FLAGS -Wformat=2 -Wformat-nonliteral -Wno-format-signedness"
           ],
           [test "x$gcc_format_nonliteral" = "xyes"],
-          [EXTRA_FLAGS="$EXTRA_FLAGS -Wformat=2"])
+          [EXTRA_FLAGS="$EXTRA_FLAGS -Wformat=2 -Wno-format-signedness"])
 
 # Additional warnings it might be nice to enable one day
 #                -Wshadow