fixed CMAKE_PREFIX_PATH && MSVC compiler rejection

cmake/EthCompilerSettings.cmake

@@ -10,8 +10,10 @@ if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
 	endif ()
 elseif ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
 	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
+elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
 else ()
-	message(FATAL_ERROR "Your C++ compiler does not support C++11.")
+	message(FATAL_ERROR "Your C++ compiler does not support C++11. You have ${CMAKE_CXX_COMPILER_ID}")
 endif ()
 
 

cmake/EthDependencies.cmake

@@ -4,7 +4,7 @@
 # by defining this variable, cmake will look for dependencies first in our own repository before looking in system paths like /usr/local/ ...
 # this must be set to point to the same directory as $ETH_DEPENDENCY_INSTALL_DIR in /extdep directory
 string(TOLOWER ${CMAKE_SYSTEM_NAME} _system_name)
-set (CMAKE_FIND_ROOT_PATH "${CMAKE_CURRENT_SOURCE_DIR}/extdep/install/${_system_name}")
+set (CMAKE_PREFIX_PATH "${CMAKE_CURRENT_SOURCE_DIR}/extdep/install/${_system_name}")
 
 
 # Dependencies must have a version number + EXACT, to ensure reproducible builds