Add patch #231

Job	Run time
fetch_llvm_version	2s
build (i686-w64-mingw32-cxx11) / build_llvm_assert	28m 54s
build (x86_64-w64-mingw32-cxx11) / build_llvm_assert	30m 48s
build (x86_64-linux-gnu-cxx11) / build_llvm_assert	35m 18s
build (aarch64-apple-darwin) / build_llvm_assert	27m 54s
build (aarch64-apple-darwin) / build_julia_assert_windows	0s
build (aarch64-apple-darwin) / build_julia_assert_linux	0s
build (aarch64-apple-darwin) / test_julia_assert_linux	0s
build (aarch64-apple-darwin) / test_julia_assert_windows	0s
build (i686-w64-mingw32-cxx11) / build_julia_assert_windows	31m 49s
build (i686-w64-mingw32-cxx11) / build_julia_assert_linux	0s
build (i686-w64-mingw32-cxx11) / test_julia_assert_linux	0s
build (x86_64-w64-mingw32-cxx11) / build_julia_assert_windows	37m 51s
build (x86_64-w64-mingw32-cxx11) / build_julia_assert_linux	0s
build (x86_64-w64-mingw32-cxx11) / test_julia_assert_linux	0s
build (x86_64-linux-gnu-cxx11) / build_julia_assert_linux	29m 31s
build (x86_64-linux-gnu-cxx11) / build_julia_assert_windows	0s
build (x86_64-linux-gnu-cxx11) / test_julia_assert_windows	0s
build (i686-w64-mingw32-cxx11) / test_julia_assert_windows	6h 0m 10s
build (x86_64-linux-gnu-cxx11) / test_julia_assert_linux	2h 49m 23s
build (x86_64-w64-mingw32-cxx11) / test_julia_assert_windows	6h 0m 13s
	18h 31m 53s

Provide feedback