configure.in (NO_EXECUTE_PERMISSION): Remove global declaration; add for ia64; remove for MIPS.

2004-01-16  Andrew Haley  <aph@redhat.com>

        * configure.in (NO_EXECUTE_PERMISSION): Remove global declaration;
        add for ia64; remove for MIPS.
        * configure: Regnerated.

From-SVN: r75981

boehm-gc/ChangeLog

+2004-01-16  Andrew Haley  <aph@redhat.com>
+
+	* configure.in (NO_EXECUTE_PERMISSION): Remove global declaration;
+	add for ia64; remove for MIPS.
+	* configure: Regnerated.
+	
 2004-01-14  Kelley Cook  <kcook@gcc.gnu.org>
 
 	* configure.in: Add in AC_PREREQ(2.13)

boehm-gc/configure.in

@@ -246,6 +246,12 @@ esac
 
 # Configuration of machine-dependent code
 #
+# We don't set NO_EXECUTE_PERMISSION by default because gcj (and
+# anything else that creates trampolines in gc-allocated memory)
+# always needs exec permission.  The exception to this is IA-64 and
+# some variations of Power PC, where trampolines don't contain
+# executable code.
+#
 AC_MSG_CHECKING(which machine-dependent code should be used) 
 machdep=
 case "$host" in
@@ -275,7 +281,6 @@ case "$host" in
     ;; 
  mips-*-*)
     machdep="mips_sgi_mach_dep.lo"
-    AC_DEFINE(NO_EXECUTE_PERMISSION)
     ;;
  sparc-*-netbsd*)
     machdep="sparc_netbsd_mach_dep.lo"
@@ -288,6 +293,7 @@ case "$host" in
     machdep="sparc_mach_dep.lo"
     ;;
  ia64-*-*)
+    AC_DEFINE(NO_EXECUTE_PERMISSION)
     machdep="mach_dep.lo ia64_save_regs_in_stack.lo"
     ;;
 esac
@@ -377,7 +383,6 @@ dnl Include defines that have become de facto standard.
 dnl ALL_INTERIOR_POINTERS can be overridden in startup code.
 AC_DEFINE(SILENT)
 AC_DEFINE(NO_SIGNALS)
-AC_DEFINE(NO_EXECUTE_PERMISSION)
 AC_DEFINE(ALL_INTERIOR_POINTERS)
 
 dnl By default, make the library as general as possible.