File SHERPA-MC-fix_arm_build.patch of Package SHERPA-MC

--- AMEGIC++/Amplitude/Vertex.C.orig	2018-04-25 08:59:22.886261336 +0200
+++ AMEGIC++/Amplitude/Vertex.C	2018-04-25 08:59:45.676379120 +0200
@@ -422,9 +422,9 @@ void Vertex::ColorExchange(MODEL::Color_
 {
   //T[0,1,2] -> T[new0,new1,new2]
   int  partarg[3]  ={-1,-1,-1};
-  char strarg[3]   ={-1,-1,-1};
+  signed char strarg[3]   ={-1,-1,-1};
   int  partargn[3] ={-1,-1,-1};
-  char strargn[3]  ={-1,-1,-1};
+  signed char strargn[3]  ={-1,-1,-1};
  
   for (short int i=0;i<3;i++) {
     if (colfunc->Type()==MODEL::cf::D && i==2) break;