config.gcc (*-*-netbsd*): Add NETBSD_ENABLE_PTHREADS to tm_defines if pthreads are enabled.

* config.gcc (*-*-netbsd*): Add NETBSD_ENABLE_PTHREADS to
tm_defines if pthreads are enabled.
* config/netbsd.h (LIB_SPEC): Only support the -pthread option
if NETBSD_ENABLE_PTHREADS is defined.

From-SVN: r58599

gcc/ChangeLog

+2002-10-28  Jason Thorpe  <thorpej@wasabisystems.com>
+
+	* config.gcc (*-*-netbsd*): Add NETBSD_ENABLE_PTHREADS to
+	tm_defines if pthreads are enabled.
+	* config/netbsd.h (LIB_SPEC): Only support the -pthread option
+	if NETBSD_ENABLE_PTHREADS is defined.
+
 2002-10-28  Kazu Hirata  <kazu@cs.umass.edu>
 
 	* ChangeLog.1: Fix typos.

gcc/config.gcc

@@ -367,6 +367,7 @@ case $machine in
 	case x${enable_threads} in
 	xyes | xposix)
 		thread_file='posix'
+		tm_defines="${tm_defines} NETBSD_ENABLE_PTHREADS"
 		;;
 	esac
 	;;

gcc/config/netbsd.h

@@ -82,11 +82,16 @@ Boston, MA 02111-1307, USA.  */
    1. Select the appropriate set of libs, depending on whether we're
       profiling.
 
-   2. Include the pthread library if -pthread is specified.
+   2. Include the pthread library if -pthread is specified (only
+      if threads are enabled).
 
-   3. Include the posix library if -posix is specified.  */
+   3. Include the posix library if -posix is specified.
+
+   FIXME: Could eliminate the duplication here if we were allowed to
+   use string concatenation.  */
 
 #undef LIB_SPEC
+#ifdef NETBSD_ENABLE_PTHREADS
 #define LIB_SPEC		\
   "%{pthread:			\
      %{!p:			\
@@ -104,6 +109,20 @@ Boston, MA 02111-1307, USA.  */
 	 %{!pg:-lc}}		\
        %{p:-lc_p}		\
        %{pg:-lc_p}}}"
+#else
+#define LIB_SPEC		\
+  "%{posix:			\
+     %{!p:			\
+       %{!pg:-lposix}}		\
+     %{p:-lposix_p}		\
+     %{pg:-lposix_p}}		\
+   %{!shared:			\
+     %{!symbolic:		\
+       %{!p:			\
+	 %{!pg:-lc}}		\
+       %{p:-lc_p}		\
+       %{pg:-lc_p}}}"
+#endif
 
 /* Provide a LIBGCC_SPEC appropriate for NetBSD.  We also want to exclude
    libgcc with -symbolic.  */