Change "if SUN" conditionals in remaining Makefile.am files to "if SOLARIS"

cde/programs/dtcm/dtcm/Makefile.am

@@ -7,7 +7,7 @@ AM_CFLAGS = -I../../../lib/csa -I../libDtCmP -I../../dthelp $(TIRPCINC)
 AM_LDADD = ../libDtCmP/libDtCmP.a $(LIBCSA) $(LIBPRINT) $(LIBHELP) \
 	   $(LIBWIDGET) $(LIBSVC) $(LIBTT) -lXm $(XTOOLLIB) ${X_LIBS}
 
-if SUN
+if SOLARIS
 AM_CFLAGS += -xstrconst -Xc -v
 endif
 

cde/programs/dtcm/libDtCmP/Makefile.am

@@ -7,7 +7,7 @@ noinst_LIBRARIES = libDtCmP.a
 libDtCmP_a_CFLAGS = -I../../../lib/csa -DRFC_MIME -DLINE_COUNT -DV2 -DOW_I18N \
 		  $(TIRPCINC)
 
-if SUN
+if SOLARIS
 libDtCmP_a_CFLAGS += -xstrconst -Xc -v
 endif
 

cde/programs/dtcm/server/Makefile.am

@@ -8,7 +8,7 @@ rpc.cmsd_CFLAGS = -I$(CSASRC) -I$(HELPSRC) $(TIRPCINC)
 
 rpc.cmsd_LDADD = $(LIBCSA) $(LIBSVC) $(LIBTT) $(LIBWIDGET) $(XTOOLLIB) ${X_LIBS}
 
-if SUN
+if SOLARIS
 rpc.cmsd_CFLAGS += -xstrconst -Xc -v
 rpc.cmsd_LDADD += -lsocket -lnsl -lintl -lm -ldl
 endif