* configure: Regenerate.

From-SVN: r223635

libjava/ChangeLog

+2015-05-24  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* configure: Regenerate.
+
 2015-05-13  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* configure.ac: Include config/sjlj.m4.
 	Remove manual SJLJ check, add GCC_CHECK_SJLJ_EXCEPTIONS and adjust.
 	* include/config.h.in: Regenerate.
-	* configure: Likewise.
 	* exception.cc: Replace SJLJ_EXCEPTIONS by __USING_SJLJ_EXCEPTIONS__.
 	* stacktrace.cc: Likewise.
 	* include/default-signal.h: Likewise.

libjava/configure

@@ -950,7 +950,6 @@ enable_reduced_reflection
 with_win32_nlsapi
 enable_gc_debug
 enable_interpreter
-enable_sjlj_exceptions
 enable_java_net
 with_libffi
 enable_jvmpi
@@ -1645,8 +1644,6 @@ Optional Features:
                           building portions of libgcj
   --enable-gc-debug       include full support for pointer backtracing etc.
   --enable-interpreter    enable interpreter
-  --enable-sjlj-exceptions
-                          force use of builtin_setjmp for exceptions
   --disable-java-net      disable java.net
   --disable-jvmpi         disable JVMPI support
   --enable-java-gc=TYPE   choose garbage collector (default is boehm)
@@ -13392,7 +13389,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 13395 "configure"
+#line 13392 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -13498,7 +13495,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 13501 "configure"
+#line 13498 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -19482,70 +19479,36 @@ else
 fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for exception model to use" >&5
-$as_echo_n "checking for exception model to use... " >&6; }
-ac_ext=cpp
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-
-# Check whether --enable-sjlj-exceptions was given.
-if test "${enable_sjlj_exceptions+set}" = set; then :
-  enableval=$enable_sjlj_exceptions; :
+# If we are not using SJLJ exceptions, and this host does not have support
+# for unwinding from a signal handler, enable checked dereferences and divides.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler is configured for setjmp/longjmp exceptions" >&5
+$as_echo_n "checking whether the compiler is configured for setjmp/longjmp exceptions... " >&6; }
+if test "${ac_cv_sjlj_exceptions+set}" = set; then :
+  $as_echo_n "(cached) " >&6
 else
-  cat > conftest.$ac_ext << EOF
-#line 19498 "configure"
-struct S { ~S(); };
-void bar();
-void foo()
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __USING_SJLJ_EXCEPTIONS__
+          this will fail
+          #endif
+int
+main ()
 {
-  S s;
-  bar();
+int i;
+  ;
+  return 0;
 }
-EOF
-old_CXXFLAGS="$CXXFLAGS"
-CXXFLAGS=-S
-if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
-  (eval $ac_compile) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then
-  if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
-    enable_sjlj_exceptions=yes
-  elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
-    enable_sjlj_exceptions=no
-  elif grep __cxa_end_cleanup conftest.s >/dev/null 2>&1 ; then
-    # ARM EH ABI.
-    enable_sjlj_exceptions=no
-  fi
-fi
-CXXFLAGS="$old_CXXFLAGS"
-rm -f conftest*
-fi
-
-if test x$enable_sjlj_exceptions = xyes; then
-
-$as_echo "#define SJLJ_EXCEPTIONS 1" >>confdefs.h
-
-  ac_exception_model_name=sjlj
-elif test x$enable_sjlj_exceptions = xno; then
-  ac_exception_model_name="call frame"
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_sjlj_exceptions=no
 else
-  as_fn_error "unable to detect exception model" "$LINENO" 5
+  ac_cv_sjlj_exceptions=yes
 fi
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_exception_model_name" >&5
-$as_echo "$ac_exception_model_name" >&6; }
-
-# If we are non using SJLJ exceptions, and this host does not have support
-# for unwinding from a signal handler, enable checked dereferences and divides.
-if test $can_unwind_signal = no && test $enable_sjlj_exceptions = no; then
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sjlj_exceptions" >&5
+$as_echo "$ac_cv_sjlj_exceptions" >&6; }
+if test $ac_cv_sjlj_exceptions = no && test $can_unwind_signal = no; then
   CHECKREFSPEC=-fcheck-references
   DIVIDESPEC=-fuse-divide-subroutine
   EXCEPTIONSPEC=
@@ -24455,7 +24418,7 @@ case "${host}" in
 esac
 
 # If we're using sjlj exceptions, forget what we just learned.
-if test "$enable_sjlj_exceptions" = yes; then
+if test "$ac_cv_sjlj_exceptions" = yes; then
    SIGNAL_HANDLER=include/default-signal.h
    SIGNAL_HANDLER_AUX=
 fi