Update to 1.11.0-beta1

cmake/FindSSE.cmake

@@ -0,0 +1,17 @@
+# Autodetect if SSE4.1 can be used. If so, the assumption is, so can the other
+# SSE version (SSE 2.0, SSSE 3.0).
+
+include(CheckCXXSourceCompiles)
+set(CMAKE_REQUIRED_FLAGS "")
+
+if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" OR CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang")
+    set(CMAKE_REQUIRED_FLAGS "-msse4.1")
+endif()
+
+check_cxx_source_compiles("
+    #include <xmmintrin.h>
+    #include <smmintrin.h>
+    #include <tmmintrin.h>
+    int main() { return 0; }"
+    SSE_FOUND
+)