Support dev packages of ISPC

Author: aneshlya

get_ispc.cmake

@@ -22,8 +22,13 @@ elseif(APPLE)
   set(_ISPC_SRC_LIB_NAME lib)
   set(_ISPC_DST_LIB_NAME lib)
 else()
-  set(_ISPC_SRC_LIB_NAME lib64)
-  set(_ISPC_DST_LIB_NAME lib64)
+  if(ISPC_VERSION MATCHES "dev")
+    set(_ISPC_SRC_LIB_NAME lib)
+    set(_ISPC_DST_LIB_NAME lib)
+  else()
+    set(_ISPC_SRC_LIB_NAME lib64)
+    set(_ISPC_DST_LIB_NAME lib64)
+  endif()
   # set(FIND_LIBRARY_USE_LIB64_PATHS TRUE)
 endif()