caprice32: Add <string> include

pkgs/misc/emulators/caprice32/default.nix

···
 
   pname = "caprice32";
   version = "4.6.0";
+  # NOTE: When bumping version beyond 4.6.0, you likely need to remove
+  #       string.patch below. The fix of this patch has already been
+  #       done upstream but is not yet part of a release
 
   src = fetchFromGitHub {
     repo = "caprice32";
···
 
   nativeBuildInputs = [ desktop-file-utils pkg-config ];
   buildInputs = [ libpng SDL freetype zlib ];
+
+  patches = [ ./string.patch ];
 
   makeFlags = [
     "APP_PATH=${placeholder "out"}/share/caprice32"

pkgs/misc/emulators/caprice32/string.patch

···
+diff --git a/src/configuration.h b/src/configuration.h
+index 34fd690..97fb0e5 100644
+--- a/src/configuration.h
++++ b/src/configuration.h
+@@ -2,6 +2,7 @@
+ #define CONFIGURATION_H
+ 
+ #include <map>
++#include <string>
+ 
+ namespace config
+ {