externals: Switch to newer cryptopp-cmake. (#6242)

externals/CMakeLists.txt

@@ -29,7 +29,24 @@ set(CATCH_INSTALL_EXTRAS OFF)
 add_subdirectory(catch2)
 
 # Crypto++
-add_subdirectory(cryptopp)
+set(CRYPTOPP_BUILD_DOCUMENTATION OFF)
+set(CRYPTOPP_BUILD_TESTING OFF)
+set(CRYPTOPP_INSTALL OFF)
+add_subdirectory(cryptopp-cmake)
+
+# HACK: The logic to set up the base include directory for CryptoPP does not work with Android SDK CMake 3.22.1.
+# Until there is a fixed version available, this code will detect and add in the proper include if it does not exist.
+if(ANDROID)
+    message(STATUS "Applying CryptoPP include fix.")
+    get_target_property(CRYPTOPP_INCLUDES cryptopp INTERFACE_INCLUDE_DIRECTORIES)
+    foreach(CRYPTOPP_INCLUDE ${CRYPTOPP_INCLUDES})
+        if("${CRYPTOPP_INCLUDE}" MATCHES "\\$<BUILD_INTERFACE:(.*)/cryptopp>")
+            message(STATUS "Fixed include path: ${CMAKE_MATCH_1}")
+            target_include_directories(cryptopp PUBLIC $<BUILD_INTERFACE:${CMAKE_MATCH_1}>)
+            break()
+        endif()
+    endforeach()
+endif()
 
 # fmt and Xbyak need to be added before dynarmic
 # libfmt