Add missing ENVIRONMENT_API

Signed-off-by: Jake Smith <jake.smith@lexisnexis.com>

common/environment/dalienv.hpp

@@ -52,7 +52,7 @@ extern ENVIRONMENT_API bool getRemoteRunInfo(const char * keyName, const char *
 extern ENVIRONMENT_API bool envGetConfigurationDirectory(const char *category, const char *component,const char *instance, StringBuffer &dirout);
 
 extern ENVIRONMENT_API IPropertyTree *envGetNASConfiguration(); // return NAS config from environment
-IPropertyTree *envGetNASConfiguration(IPropertyTree *source);
+extern ENVIRONMENT_API IPropertyTree *envGetNASConfiguration(IPropertyTree *source);
 // These methods filter the NAS hooks based on the callers IP, unless 'myEp' is supplied.
 extern ENVIRONMENT_API void envInstallNASHooks(SocketEndpoint *myEp=NULL); // gets NAS config and sets up NAS hooks from it
 extern ENVIRONMENT_API void envInstallNASHooks(IPropertyTree *nasPTree, SocketEndpoint *myEp=NULL); // Sets NAS hooks from user-supplied info