--- gdcm-2.6.3.orig/Testing/Source/DataStructureAndEncodingDefinition/Cxx/TestElement1.cxx	2016-01-27 14:25:39.000000000 +0100
+++ gdcm-2.6.3/Testing/Source/DataStructureAndEncodingDefinition/Cxx/TestElement1.cxx	2016-02-01 22:34:34.559716794 +0100
@@ -88,7 +88,7 @@
 
 int TestUL()
 {
-  const char array[4] = {-78, 1, 0, 0}; // 434
+  const signed char array[4] = {-78, 1, 0, 0}; // 434
   {
   Element<VR::UL, VM::VM1> a;
   // reinterpret_cast< const Element<VR::UL, VM::VM1>& > ( array );