On Linux when linking against a C++ library the whole program must be linked

with the C++ linker.

cde/programs/dtfile/dtcopy/Imakefile

@@ -10,6 +10,12 @@ SYS_LIBRARIES = DtClientSysLibs DtClientExtraLibs
 EXTRA_CCOPTIONS = -xF
 #endif
 
+XCOMM On Linux once you link against a C++ library the whole program
+XCOMM has to be linked with the C++ linker
+#if defined(LinuxDistribution)
+CCLINK = $(CXX)
+#endif
+
 SRCS =  main_dtcopy.c   copydialog.c    overwrtdialog.c dosync.c \
         fsrtns.c        utils.c         errordialog.c   sharedFuncs.c