diff --git a/externals/CMakeLists.txt b/externals/CMakeLists.txt
index 119acc853b847f0f681437456f60a0bb1c391fee..68c3e19267ebe85e148ff339158eda2cd905d80e 100644
--- a/externals/CMakeLists.txt
+++ b/externals/CMakeLists.txt
@@ -416,9 +416,9 @@ LCGPackage_Add(
 if(LCG_TARGET MATCHES "i686")
   set (xerces_config_opts --disable-sse2)
 endif()
-if((heptools_version MATCHES experimental) OR (heptools_version MATCHES dev2) OR (heptools_version MATCHES dev3) OR (heptools_version MATCHES dev4) )
-  set(xerces_config_opts LIBS=-lc)
-endif()
+#if((heptools_version MATCHES experimental) OR (heptools_version MATCHES dev2) OR (heptools_version MATCHES dev3) OR (heptools_version MATCHES dev4) )
+#  set(xerces_config_opts LIBS=-lc)
+#endif()
 
 
 LCGPackage_Add(