configure.ac: Don't test for [build] __cxa_atexit when building a cross compiler.

	* configure.ac: Don't test for [build] __cxa_atexit when building a
	cross compiler.
	* configure: Regenerate.

From-SVN: r89684

gcc/ChangeLog

+2004-10-27  Paul Brook  <paul@codesourcery.com>
+
+	* configure.ac: Don't test for [build] __cxa_atexit when building a
+	cross compiler.
+	* configure: Regenerate.
+
 2004-10-27  Paul Brook  <paul@codeosurcery.com>
 
 	* configure.ac: Use build_exeext not host_exeext when lookin for

gcc/configure

@@ -12005,9 +12005,11 @@ fi
 # UNSORTED
 # --------
 
+use_cxa_atexit=no
 if test x$enable___cxa_atexit = xyes || \
    test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
-   echo "$as_me:$LINENO: checking for __cxa_atexit" >&5
+  if test x$host = x$target; then
+    echo "$as_me:$LINENO: checking for __cxa_atexit" >&5
 echo $ECHO_N "checking for __cxa_atexit... $ECHO_C" >&6
 if test "${ac_cv_func___cxa_atexit+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -12098,15 +12100,23 @@ fi
 echo "$as_me:$LINENO: result: $ac_cv_func___cxa_atexit" >&5
 echo "${ECHO_T}$ac_cv_func___cxa_atexit" >&6
 if test $ac_cv_func___cxa_atexit = yes; then
+  use_cxa_atexit=yes
+else
+  echo "__cxa_atexit can't be enabled on this target"
+fi
+
+  else
+    # We can't check for __cxa_atexit when building a cross, so assume
+    # it is available
+    use_cxa_atexit=yes
+  fi
+  if test x$use_cxa_atexit = xyes; then
 
 cat >>confdefs.h <<\_ACEOF
 #define DEFAULT_USE_CXA_ATEXIT 1
 _ACEOF
 
-else
-  echo "__cxa_atexit can't be enabled on this target"
-fi
-
+  fi
 fi
 
 # Look for a file containing extra machine modes.

gcc/configure.ac

@@ -1295,15 +1295,24 @@ AC_SUBST(gthread_flags)
 # UNSORTED
 # --------
 
+use_cxa_atexit=no
 if test x$enable___cxa_atexit = xyes || \
    test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
-   AC_CHECK_FUNC(__cxa_atexit,
-	[AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
-   	[Define if you want to use __cxa_atexit, rather than atexit, to
-   	register C++ destructors for local statics and global objects.
-   	This is essential for fully standards-compliant handling of
-   	destructors, but requires __cxa_atexit in libc.])],
-	echo "__cxa_atexit can't be enabled on this target")
+  if test x$host = x$target; then
+    AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
+	[echo "__cxa_atexit can't be enabled on this target"])
+  else
+    # We can't check for __cxa_atexit when building a cross, so assume
+    # it is available 
+    use_cxa_atexit=yes
+  fi
+  if test x$use_cxa_atexit = xyes; then
+    AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
+      [Define if you want to use __cxa_atexit, rather than atexit, to
+      register C++ destructors for local statics and global objects.
+      This is essential for fully standards-compliant handling of
+      destructors, but requires __cxa_atexit in libc.])
+  fi
 fi
 
 # Look for a file containing extra machine modes.