diff --git a/src/extlib-abc/aig/aig/aigPart.c b/src/extlib-abc/aig/aig/aigPart.c
index a4cc116..c486a11 100644
--- a/src/extlib-abc/aig/aig/aigPart.c
+++ b/src/extlib-abc/aig/aig/aigPart.c
@@ -871,10 +871,6 @@ Vec_Ptr_t * Aig_ManMiterPartitioned( Aig_Man_t * p1, Aig_Man_t * p2, int nPartSi
 ***********************************************************************/
 Aig_Man_t * Aig_ManChoicePartitioned( Vec_Ptr_t * vAigs, int nPartSize )
 {
-    extern int Cmd_CommandExecute( void * pAbc, char * sCommand );
-    extern void * Abc_FrameGetGlobalFrame();
-    extern Aig_Man_t * Fra_FraigChoice( Aig_Man_t * pManAig, int nConfMax );
-
     Vec_Ptr_t * vOutsTotal, * vOuts;
     Aig_Man_t * pAigTotal, * pAigPart, * pAig;
     Vec_Int_t * vPart, * vPartSupp;
@@ -898,8 +894,6 @@ Aig_Man_t * Aig_ManChoicePartitioned( Vec_Ptr_t * vAigs, int nPartSize )
         Aig_ManForEachPi( pAig, pObj, k )
             pObj->pNext = (Aig_Obj_t *)(long)k;
 
-    Cmd_CommandExecute( Abc_FrameGetGlobalFrame(), "unset progressbar" );
-
     // create the total fraiged AIG
     vPartSupp = Vec_IntAlloc( 100 ); // maps part PI num into total PI num
     Vec_PtrForEachEntry( vParts, vPart, i )
@@ -936,7 +930,7 @@ Aig_Man_t * Aig_ManChoicePartitioned( Vec_Ptr_t * vAigs, int nPartSize )
             i+1, Vec_PtrSize(vParts), Aig_ManPiNum(pAigPart), Aig_ManPoNum(pAigPart), 
             Aig_ManNodeNum(pAigPart), Aig_ManLevelNum(pAigPart) );
         // compute equivalence classes (to be stored in pNew->pReprs)
-        pAig = Fra_FraigChoice( pAigPart, 1000 );
+        pAig = NULL;
         Aig_ManStop( pAig );
         // reset the pData pointers
         Aig_ManForEachObj( pAigPart, pObj, k )
@@ -951,8 +945,6 @@ Aig_Man_t * Aig_ManChoicePartitioned( Vec_Ptr_t * vAigs, int nPartSize )
     Vec_VecFree( (Vec_Vec_t *)vParts );
     Vec_IntFree( vPartSupp );
 
-    Cmd_CommandExecute( Abc_FrameGetGlobalFrame(), "set progressbar" );
-
     // clear the PI numbers
     Vec_PtrForEachEntry( vAigs, pAig, i )
         Aig_ManForEachPi( pAig, pObj, k )
diff --git a/src/extlib-abc/aig/aig/aigShow.c b/src/extlib-abc/aig/aig/aigShow.c
index a88f493..34b26ef 100644
--- a/src/extlib-abc/aig/aig/aigShow.c
+++ b/src/extlib-abc/aig/aig/aigShow.c
@@ -328,7 +328,6 @@ void Aig_WriteDotAig( Aig_Man_t * pMan, char * pFileName, int fHaig, Vec_Ptr_t *
 ***********************************************************************/
 void Aig_ManShow( Aig_Man_t * pMan, int fHaig, Vec_Ptr_t * vBold )
 {
-    extern void Abc_ShowFile( char * FileNameDot );
     static int Counter = 0;
     char FileNameDot[200];
     FILE * pFile;
@@ -344,8 +343,6 @@ void Aig_ManShow( Aig_Man_t * pMan, int fHaig, Vec_Ptr_t * vBold )
     fclose( pFile );
     // generate the file
     Aig_WriteDotAig( pMan, FileNameDot, fHaig, vBold );
-    // visualize the file 
-    Abc_ShowFile( FileNameDot );
 }
 
 
diff --git a/src/extlib-abc/aig/kit/kitGraph.c b/src/extlib-abc/aig/kit/kitGraph.c
index 1ae5891..f6ea2ca 100644
--- a/src/extlib-abc/aig/kit/kitGraph.c
+++ b/src/extlib-abc/aig/kit/kitGraph.c
@@ -20,6 +20,12 @@
 
 #include "kit.h"
 
+Kit_Graph_t *Kit_SopFactor( Vec_Int_t * vCover, int fCompl, int nVars,
+			    Vec_Int_t * vMemory )
+{
+    return NULL;
+}
+
 ////////////////////////////////////////////////////////////////////////
 ///                        DECLARATIONS                              ///
 ////////////////////////////////////////////////////////////////////////