Update CMakeLists.txt

Linke irrXml static for apple

contrib/irrXML/CMakeLists.txt

@@ -15,7 +15,11 @@ if ( MSVC )
 endif ( MSVC )
 
 IF(CMAKE_SYSTEM_NAME MATCHES "(Darwin|FreeBSD)")
-  add_library(IrrXML ${IrrXML_SRCS})
+  IF(APPLE)
+    add_library(IrrXML STATIC ${IrrXML_SRCS})
+  ELSE()
+    add_library(IrrXML ${IrrXML_SRCS})
+  ENDIF()
 ELSE()
   add_library(IrrXML STATIC ${IrrXML_SRCS})
 ENDIF()