Remove hardcoded CCLINK's in Imakefiles when linking with C++ built libs (DtSvc).

Added proper SharedDtSvcReqs in lnxLib.tmpl and CplusplusLibC in
linux.cf.  This allows the libstdc++ dependancy to be properly
declared for libDtSvc so that it is not neccessary to hardcode 'CCLINK
= g++' in the Imakefiles of programs linking angainst libDtSvc.

cde/programs/dthelp/dthelpdemo/Imakefile

@@ -17,12 +17,6 @@ DEPLIBS = $(DEPDTHELPLIB) $(DEPDTSVCLIB) $(DEPTTLIB) $(DEPXMLIB) $(DEPXTOOLLIB)
 LOCAL_LIBRARIES = $(DTHELPLIB) $(DTSVCLIB) $(TTLIB) $(XMLIB) $(XTOOLLIB) $(XPLIB) $(XLIB)
 SYS_LIBRARIES = DtClientSysLibs $(CXXLIB)
 
-XCOMM On Linux once you link against a C++ library the whole program
-XCOMM has to be linked with the C++ linker
-#if defined(LinuxArchitecture)
-CCLINK = $(CXX)
-#endif
-
 SRCS = Main.c HourGlass.c HelpCache.c
 OBJS = Main.o HourGlass.o HelpCache.o
 

cde/programs/dthelp/dthelpgen/Imakefile

@@ -11,12 +11,6 @@ SYS_LIBRARIES = DtClientSysLibs $(CXXLIB)
 
 EXTRA_INCLUDES = -I$(DTHELPSRC)
 
-XCOMM On Linux once you link against a C++ library the whole program
-XCOMM has to be linked with the C++ linker
-#if defined(LinuxArchitecture)
-CCLINK = $(CXX)
-#endif
-
 SRCS = helpgen.c version.c
 OBJS = helpgen.o version.o
 

cde/programs/dthelp/dthelpprint/Imakefile

@@ -16,12 +16,6 @@ SYS_LIBRARIES = DtClientSysLibs -lw $(CXXLIB)
 SYS_LIBRARIES = DtClientSysLibs $(CXXLIB)
 #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(LinuxArchitecture)
-CCLINK = $(CXX)
-#endif
-
 SRCS = Main.c Initialize.c PrintUtil.c PrintTopics.c PrintManStrFile.c version.c
 OBJS = Main.o Initialize.o PrintUtil.o PrintTopics.o PrintManStrFile.o version.o
 

cde/programs/dthelp/dthelpview/Imakefile

@@ -1,12 +1,6 @@
 XCOMM $XConsortium: Imakefile /main/7 1996/09/14 15:26:44 drk $
 PROGRAMS = dthelpview
 
-XCOMM On Linux once you link against a C++ library the whole program
-XCOMM has to be linked with the C++ linker
-#if defined(LinuxArchitecture)
-CCLINK = $(CXX)
-#endif
-
 DEFINES = -D_BMS
 INCLUDES = -I.