Fix bug with matlab environment probing on Windows.

When architecture is AMD64 or x86 MEX_SUBDIR_LIB wasn't set, leading to a compilation error later.

CMake/findMatlab.cmake

@@ -213,11 +213,12 @@ if( ${MATLAB_DIR_TMP} MATCHES "matlab")
 	elseif(WIN32)
 		# METHODE 1 (without using matlab)
 		#methode sure
-		if ("$ENV{PROCESSOR_ARCHITECTURE}" STREQUAL "AMD64")
-			set(MEX_EXT  "mexw64")
-		elseif ("$ENV{PROCESSOR_ARCHITECTURE}" STREQUAL "x86")
-			set(MEX_EXT  "mexw32")	
-		else() 
+# first and second alternatives are commented out because they don't define MEX_SUBDIR_LIB
+#		if ("$ENV{PROCESSOR_ARCHITECTURE}" STREQUAL "AMD64")
+#			set(MEX_EXT  "mexw64")
+#		elseif ("$ENV{PROCESSOR_ARCHITECTURE}" STREQUAL "x86")
+#			set(MEX_EXT  "mexw32")	
+#		else() 
 			execute_process(COMMAND ${PROJECT_SOURCE_DIR}/CMake/matlab_arch.bat "2" "${MATLAB_ROOT}" OUTPUT_VARIABLE MEX_SUBDIR_LIB)
 			string(REGEX REPLACE "\n" "" MEX_SUBDIR_LIB ${MEX_SUBDIR_LIB})
 			if ("${MEX_SUBDIR_LIB}" STREQUAL "win64")
@@ -231,7 +232,7 @@ if( ${MATLAB_DIR_TMP} MATCHES "matlab")
 			else()
 				message(WARNING "No extension for mex function is available. (see ./CMAke/findMatlab.cmake)")
 			endif("${MEX_SUBDIR_LIB}" STREQUAL "win64")	
-		endif("$ENV{PROCESSOR_ARCHITECTURE}" STREQUAL "AMD64")	
+#		endif("$ENV{PROCESSOR_ARCHITECTURE}" STREQUAL "AMD64")	
 		#message(STATUS "TEST ALALALALALALALAL MATLAB_ROOT has been found : ${MEX_SUBDIR_LIB} ${MEX_EXT}")
 		# METHODE 2 (using matlab)
 		#exec_program("${PROJECT_SOURCE_DIR}/CMake/matlab_arch.bat 0 \"${MATLAB_ARCH_FILE}\"" OUTPUT_VARIABLE MEX_SUBDIR_LIB)