HPCC-11460 Fix regressions in windows build

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>

ecl/hql/hqlerror.hpp

@@ -157,10 +157,10 @@ private:
 
 //---------------------------------------------------------------------------------------------------------------------
 
-ErrorSeverity queryDefaultSeverity(WarnErrorCategory category);
-WarnErrorCategory getCategory(const char * category);
-ErrorSeverity getSeverity(IAtom * name);
-ErrorSeverity getCheckSeverity(IAtom * name);
+extern HQL_API ErrorSeverity queryDefaultSeverity(WarnErrorCategory category);
+extern HQL_API WarnErrorCategory getCategory(const char * category);
+extern HQL_API ErrorSeverity getSeverity(IAtom * name);
+extern HQL_API ErrorSeverity getCheckSeverity(IAtom * name);
 
 //---------------------------------------------------------------------------------------------------------------------
 

system/jlib/jthread.cpp

@@ -1290,7 +1290,7 @@ public:
         }
     }
 
-    bool run(const char *_title,const char *prog,const char *dir,bool hasinput,bool hasoutput,bool haserror, size32_t stderrbufsize)
+    bool run(const char *_title,const char *prog,const char *dir,bool hasinput,bool hasoutput,bool haserror, size32_t stderrbufsize,bool newProcessGroup)
     {
         // size32_t stderrbufsize ignored as not required (I think)
         CriticalBlock block(sect);