sym2num: don't hardcode path to cpp

cde/programs/dtprintinfo/Imakefile

@@ -72,7 +72,7 @@ ComplexCplusplusProgramTarget(dtprintinfo)
 
 dtprintinfo_msg.h dtprintinfo.msg: dtprintinfo.msg.src
 	rm -f dtprintinfo_msg.h dtprintinfo.msg
-	$(SYM2NUM_CMD) dtprintinfo dtprintinfo.msg.src> dtprintinfo.msg
+	CPP="$(CPP)" $(SYM2NUM_CMD) dtprintinfo dtprintinfo.msg.src> dtprintinfo.msg
 
 dtprintinfo_cat.h: dtprintinfo.msg.src
 	rm -f dtprintinfo_cat.h

cde/programs/dtprintinfo/sym2num

@@ -53,21 +53,8 @@ awk '/^\$set/ { SET_NAME=$2; SET_COUNT++; MES_COUNT=0;
 # There are two differences between sym2num and mkcatdefs: sym2num
 # does not create a $delset line, and sym2num converts all symbols
 # to numbers, even those in comment statements. 
-if [[ -f /usr/ccs/lib/cpp ]]   #IBM & SUN
-then
-   cpp_path=/usr/ccs/lib       
-elif [[ -f /usr/libexec/cpp ]] #BSD
-then
-   cpp_path=/usr/libexec
-elif [[ -f /usr/bin/cpp ]]     #BSD
-then
-   cpp_path=/usr/bin
-elif [[ -f /lib/cpp ]]         #HP
-then
-   cpp_path=/lib
-fi
    ( cat ${inc_file} | sed -n /define/p ; cat ${SOURCE_FILE} ) | \
-   ${cpp_path}/cpp -P | sed -e '/^$/d' -e 's/^\$$/\$ /' \
+   ${CPP:-/lib/cpp} -P | sed -e '/^$/d' -e 's/^\$$/\$ /' \
     -e 's/\"\"$/\"/' -e 's/XDQUOTE/\"/' -e "s/XSQUOTE/\'/" \
     -e 's/^\([1-9][0-9]*\)[ ]*[\"]*\(\"\)\(.*\)/\1 \2\3/'
 

cde/programs/localized/templates/header2.tmpl

@@ -55,7 +55,7 @@ dtprintinfo.cat: dtprintinfo.msg					@@\
 		export LANG; \						@@\
 		LC_COLLATE=C; \						@@\
 		export LC_COLLATE; \					@@\
-		$(SYM2NUM_CMD) $(@:.cat=) $(@:.cat=.msg) > tmp.msg; \	@@\
+		CPP="$(CPP)" $(SYM2NUM_CMD) $(@:.cat=) $(@:.cat=.msg) > tmp.msg; \	@@\
 		$(GENCAT) $@ tmp.msg; \					@@\
 		rm -f tmp.msg $(@:.cat=_msg.h) \			@@\
 	)								@@\