build: silence gcc7's implicit fallthrough warning (#1622)

This is a well-intentioned but realistically annoying warning. Unfortunately, it's too easy for a warning in one header to cause dozens of repeated warnings. bitcoin#10489
dashpay · Sep 14, 2017 · ace0017 · ace0017
1 parent 6a6b31b
commit ace0017
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/configure.ac b/configure.ac
@@ -202,7 +202,7 @@ fi
 ##       compatibility with the legacy buildsystem.
 ##
 if test "x$CXXFLAGS_overridden" = "xno"; then
-  CXXFLAGS="$CXXFLAGS -Wall -Wextra -Wformat -Wformat-security -Wno-unused-parameter -Wno-self-assign"
+  CXXFLAGS="$CXXFLAGS -Wall -Wextra -Wformat -Wformat-security -Wno-unused-parameter -Wno-self-assign -Wno-implicit-fallthrough"
 fi
 CPPFLAGS="$CPPFLAGS -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS"