-echo export LD_LIBRARY_PATH='$'LD_LIBRARY_PATH:$GDCM_DIR >> $installPrefixThird/share/creatools_third_party_library_config.sh
-echo export LD_LIBRARY_PATH='$'LD_LIBRARY_PATH:$ITK_DIR >> $installPrefixThird/share/creatools_third_party_library_config.sh
-echo export LD_LIBRARY_PATH='$'LD_LIBRARY_PATH:$VTK_DIR >> $installPrefixThird/share/creatools_third_party_library_config.sh
+if [ $OperatingSystem = "MacOS" ]
+then
+ echo export DYLD_LIBRARY_PATH='$'DYLD_LIBRARY_PATH:$GDCM_DIR >> $installPrefixThird/share/creatools_third_party_library_config.sh
+ echo export DYLD_LIBRARY_PATH='$'DYLD_LIBRARY_PATH:$ITK_DIR >> $installPrefixThird/share/creatools_third_party_library_config.sh
+ echo export DYLD_LIBRARY_PATH='$'DYLD_LIBRARY_PATH:$VTK_DIR >> $installPrefixThird/share/creatools_third_party_library_config.sh
+else
+ echo export LD_LIBRARY_PATH='$'LD_LIBRARY_PATH:$GDCM_DIR >> $installPrefixThird/share/creatools_third_party_library_config.sh
+ echo export LD_LIBRARY_PATH='$'LD_LIBRARY_PATH:$ITK_DIR >> $installPrefixThird/share/creatools_third_party_library_config.sh
+ echo export LD_LIBRARY_PATH='$'LD_LIBRARY_PATH:$VTK_DIR >> $installPrefixThird/share/creatools_third_party_library_config.sh
+fi