config.gcc (hppa*64*-*-hpux11*): Check gnu_ld.

	* config.gcc (hppa*64*-*-hpux11*): Check gnu_ld.
	* config/pa/pa.h (MASK_GNU_LD): New.
	(TARGET_GNU_LD): New.
	(TARGET_SWITCHES): New gnu-ld & no-gnu-ld flags.
	* config/pa/pa64-hpux.h (LINK_SPEC): Set based
	on gnu-ld and MASK_GNU_LD.

From-SVN: r57792

gcc/ChangeLog

+2002-10-03  Steve Ellcey  <sje@cup.hp.com>
+
+	* config.gcc (hppa*64*-*-hpux11*): Check gnu_ld.
+	* config/pa/pa.h (MASK_GNU_LD): New.
+	(TARGET_GNU_LD): New.
+	* config/pa/pa64-hpux.h (LINK_SPEC): Set based 
+	on gnu-ld and MASK_GNU_LD.
+	(SUBTARGET_SWITCHES): New gnu-ld & hp-ld flags.
+
 Thu Oct  3 23:35:51 CEST 2002  Jan Hubicka  <jh@suse.cz>
 
 	* i386.c (athlon_cost): Fix the move costs.

gcc/config.gcc

@@ -871,6 +871,10 @@ hppa*64*-*-hpux11*)
 	xmake_file="pa/x-ada"
 	target_cpu_default="(MASK_PA_11|MASK_PA_20|MASK_GAS)"
 
+	if test x$gnu_ld = xyes
+	then
+		target_cpu_default="${target_cpu_default}|MASK_GNU_LD"
+	fi
 #	if [ x$enable_threads = x ]; then
 #	    enable_threads=$have_pthread_h
 #	fi

gcc/config/pa/pa.h

@@ -146,6 +146,12 @@ extern int target_flags;
 #define MASK_SIO 8192
 #define TARGET_SIO (target_flags & MASK_SIO)
 
+/* Assume GNU linker by default.  */
+#define MASK_GNU_LD 16384
+#ifndef TARGET_GNU_LD
+#define TARGET_GNU_LD (target_flags & MASK_GNU_LD)
+#endif
+
 #ifndef TARGET_PA_10
 #define TARGET_PA_10 (target_flags & (MASK_PA_11 | MASK_PA_20) == 0)
 #endif

gcc/config/pa/pa64-hpux.h

@@ -19,11 +19,27 @@ along with GNU CC; see the file COPYING.  If not, write to
 the Free Software Foundation, 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 
+#undef SUBTARGET_SWITCHES
+#define SUBTARGET_SWITCHES				\
+  { "sio",	 MASK_SIO,				\
+     N_("Generate cpp defines for server IO") },	\
+  { "wsio",	-MASK_SIO,				\
+     N_("Generate cpp defines for workstation IO") },	\
+  {"gnu-ld",	 MASK_GNU_LD,				\
+     N_("Assume code will be linked by GNU ld") },	\
+  {"hp-ld",	-MASK_GNU_LD,				\
+     N_("Assume code will be linked by HP ld") },
+
 /* We can debug dynamically linked executables on hpux11; we also
    want dereferencing of a NULL pointer to cause a SEGV.  */
 #undef LINK_SPEC
+#if ((TARGET_DEFAULT | TARGET_CPU_DEFAULT) & MASK_GNU_LD)
+#define LINK_SPEC \
+  "-E %{mlinker-opt:-O} %{!shared:-u main} %{static:-a archive} %{shared:%{mhp-ld:-b}%{!mhp-ld:-shared}} %{mhp-ld:+Accept TypeMismatch}"
+#else
 #define LINK_SPEC \
-  "-E %{mlinker-opt:-O} %{!shared:-u main} %{static:-a archive} %{shared:-shared}"
+  "-E %{mlinker-opt:-O} %{!shared:-u main} %{static:-a archive} %{shared:%{mgnu-ld:-shared}%{!mgnu-ld:-b}} %{!mgnu-ld:+Accept TypeMismatch}"
+#endif
 
 /* Like the default, except no -lg.  */
 #undef LIB_SPEC