osf.h (CPP_SUBTARGET_SPEC): Handle -threads.

        * alpha/osf.h (CPP_SUBTARGET_SPEC): Handle -threads.
        (LIB_SPEC): Likewise.
        Link with -lprof1_r for -g/-pg.

From-SVN: r27353

gcc/ChangeLog

+Fri Jun  4 13:30:27 1999  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
+
+	* alpha/osf.h (CPP_SUBTARGET_SPEC): Handle -threads.
+	(LIB_SPEC): Likewise.
+	Link with -lprof1_r for -g/-pg.
+
 1999-06-04  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>
 
 	* loop.c (check_dbra_loop): Fix change of Jan 19.

gcc/config/alpha/osf.h

@@ -30,14 +30,19 @@ Boston, MA 02111-1307, USA.  */
 -Dunix -D__osf__ -D_LONGLONG -DSYSTYPE_BSD \
 -D_SYSTYPE_BSD -Asystem(unix) -Asystem(xpg4)"
 
+/* Accept DEC C flags for multithreaded programs.  We use _PTHREAD_USE_D4
+   instead of PTHREAD_USE_D4 since both have the same effect and the former
+   doesn't invade the users' namespace.  */
+
+#undef CPP_SUBTARGET_SPEC
 #define CPP_SUBTARGET_SPEC \
-"%{pthread:-D_REENTRANT}"
+"%{pthread|threads:-D_REENTRANT} %{threads:-D_PTHREAD_USE_D4}"
 
 /* Under OSF4, -p and -pg require -lprof1, and -lprof1 requires -lpdf.  */
 
 #define LIB_SPEC \
-"%{p:-lprof1 -lpdf} %{pg:-lprof1 -lpdf} %{a:-lprof2} \
- %{pthread: -lpthread -lmach -lexc} -lc"
+"%{p|pg:-lprof1%{pthread|threads:_r} -lpdf} %{a:-lprof2} \
+ %{threads: -lpthreads} %{pthread|threads: -lpthread -lmach -lexc} -lc"
 
 /* Pass "-G 8" to ld because Alpha's CC does.  Pass -O3 if we are
    optimizing, -O1 if we are not.  Pass -shared, -non_shared or