Fix Solaris/x86 libitm build

* configure.tgt: Handle i386 like i[456]86.
	* config/generic/tls.h [!HAVE_ARCH_GTM_THREAD] (gtm_thr): Don't
	take address.
	* config/generic/tls.cc [!HAVE_ARCH_GTM_THREAD ||
	!HAVE_ARCH_GTM_THREAD_DISP] (_gtm_thr_tls): New variable.

From-SVN: r181163

libitm/config/generic/tls.cc

@@ -26,6 +26,10 @@
 
 namespace GTM HIDDEN {
 
+#if !defined(HAVE_ARCH_GTM_THREAD) || !defined(HAVE_ARCH_GTM_THREAD_DISP)
+__thread gtm_thread_tls _gtm_thr_tls;
+#endif
+
 // Filter out any updates that overlap the libitm stack, as defined by
 // TOP (entry point to library) and BOT (below current function).  This
 // definition should be fine for all stack-grows-down architectures.

libitm/config/generic/tls.h

@@ -49,7 +49,7 @@ extern __thread gtm_thread_tls _gtm_thr_tls;
 #ifndef HAVE_ARCH_GTM_THREAD
 // If the target does not provide optimized access to the thread-local
 // data, simply access the TLS variable defined above.
-static inline gtm_thread *gtm_thr() { return &_gtm_thr_tls.thr; }
+static inline gtm_thread *gtm_thr() { return _gtm_thr_tls.thr; }
 static inline void set_gtm_thr(gtm_thread *x) { _gtm_thr_tls.thr = x; }
 #endif
 

libitm/configure.tgt

@@ -52,7 +52,7 @@ case "${target_cpu}" in
   powerpc*)	ARCH=powerpc ;;
   s390*)	ARCH=s390 ;;
 
-  i[456]86)
+  i[3456]86)
 	case " ${CC} ${CFLAGS} " in
 	  *" -m64 "*)
 	    ;;