Allow compiling with shared libxml2 on Windows

code/CMakeLists.txt

@@ -111,9 +111,11 @@ FIND_PACKAGE(LibXml2 REQUIRED)
 FIND_PACKAGE(PNG REQUIRED)
 FIND_PACKAGE(Jpeg)
 
+IF(WITH_STATIC_LIBXML2)
+  SET(LIBXML2_DEFINITIONS ${LIBXML2_DEFINITIONS} -DLIBXML_STATIC)
+ENDIF(WITH_STATIC_LIBXML2)
 IF(WITH_STATIC)
   # libxml2 could need winsock2 library
-  SET(LIBXML2_DEFINITIONS ${LIBXML2_DEFINITIONS} -DLIBXML_STATIC)
   SET(LIBXML2_LIBRARIES ${LIBXML2_LIBRARIES} ${WINSOCK2_LIB})
 
   # on Mac OS X libxml2 requires iconv and liblzma

code/CMakeModules/nel.cmake

@@ -247,6 +247,11 @@ MACRO(NL_SETUP_DEFAULT_OPTIONS)
   ELSE(WIN32)
     OPTION(WITH_STATIC            "With static libraries."                        OFF)
   ENDIF(WIN32)
+  IF (WITH_STATIC)
+    OPTION(WITH_STATIC_LIBXML2    "With static libxml2"                           ON )
+  ELSE(WITH_STATIC)
+    OPTION(WITH_STATIC_LIBXML2    "With static libxml2"                           OFF)
+  ENDIF(WITH_STATIC)
   OPTION(WITH_STATIC_DRIVERS      "With static drivers."                          OFF)
   IF(WIN32)
     OPTION(WITH_EXTERNAL          "With provided external."                       ON )