Harmonize Tru64 and Linux make rules.

RT: 3333,3165
Reviewed-by: Rich Salz <rsalz@openssl.org>
diff --git a/crypto/Makefile b/crypto/Makefile
index 8744957..d668739 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -87,9 +87,9 @@
 ppccpuid.s:	ppccpuid.pl;	$(PERL) ppccpuid.pl $(PERLASM_SCHEME) $@
 pariscid.s:	pariscid.pl;	$(PERL) pariscid.pl $(PERLASM_SCHEME) $@
 alphacpuid.s:	alphacpuid.pl
-	(preproc=/tmp/$$$$.$@; trap "rm $$preproc" INT; \
+	(preproc=$$$$.$@.S; trap "rm $$preproc" INT; \
 	$(PERL) alphacpuid.pl > $$preproc && \
-	$(CC) -E $$preproc > $@ && rm $$preproc)
+	$(CC) -E -P $$preproc > $@ && rm $$preproc)
 
 subdirs:
 	@target=all; $(RECURSIVE_MAKE)