When linking against libtt (a C++ lib) the link stage should use the C++

linker

cde/programs/dtpad/Imakefile

@@ -11,6 +11,12 @@ SYS_LIBRARIES = DtClientSysLibs DtClientExtraLibs
 #   LOCAL_LDFLAGS = -M mapfile.reorder
 #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 = \
         dtpad.c         editCB.c        fileCB.c \
         fileDlg.c       fileIo.c        formatCB.c \