# Clang 19 adds a new that we need to turn off.

--- a/swift-corelibs-libdispatch/cmake/modules/DispatchCompilerWarnings.cmake
+++ b/swift-corelibs-libdispatch/cmake/modules/DispatchCompilerWarnings.cmake
@@ -69,6 +69,7 @@
   add_compile_options($<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:-Wno-used-but-marked-unused>)
   add_compile_options($<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:-Wno-void-pointer-to-int-cast>)
   add_compile_options($<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:-Wno-vla>)
+  add_compile_options($<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:-Wno-error=cast-function-type-mismatch>)
 
   if(CMAKE_SYSTEM_NAME STREQUAL Android)
     add_compile_options($<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:-Wno-incompatible-function-pointer-types>)