openocd: unbreak gcc7 build

bjornfor · bjornfor · commit 9cad2a4f4a2d · 2018-02-19T00:41:28.000+01:00
diff --git a/pkgs/development/tools/misc/openocd/default.nix b/pkgs/development/tools/misc/openocd/default.nix
@@ -25,6 +25,12 @@ stdenv.mkDerivation rec {
     "--enable-remote-bitbang"
   ];
 
+  NIX_CFLAGS_COMPILE = [
+    "-Wno-implicit-fallthrough"
+    "-Wno-format-truncation"
+    "-Wno-format-overflow"
+  ];
+
   postInstall = ''
     mkdir -p "$out/etc/udev/rules.d"
     rules="$out/share/openocd/contrib/60-openocd.rules"
