https://aur.archlinux.org/cgit/aur.git/tree/remove-werror.patch?h=libdispatch
--- a/cmake/modules/DispatchCompilerWarnings.cmake	2020-05-12 13:13:59.619689872 +0300
+++ b/cmake/modules/DispatchCompilerWarnings.cmake	2020-05-12 13:13:35.216171428 +0300
@@ -2,7 +2,6 @@
 if("${CMAKE_C_SIMULATE_ID}" STREQUAL "MSVC")
   # TODO: someone needs to provide the msvc equivalent warning flags
 else()
-  add_compile_options($<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:-Werror>)
   add_compile_options($<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:-Wall>)
   add_compile_options($<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:-Wextra>)
