1 files changed, 2 insertions, 42 deletions
diff --git a/gcc/configure b/gcc/configure
index bacdd29..cab9c75 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -872,7 +872,6 @@ c_strict_warn
 strict_warn
 c_loose_warn
 loose_warn
-aliasing_flags
 CPP
 EGREP
 GREP
@@ -7126,45 +7125,6 @@ $as_echo "#define HAVE_SWAP_IN_UTILITY 1" >>confdefs.h
 
 fi
 
-# Check whether compiler is affected by placement new aliasing bug (PR 29286).
-# If the host compiler is affected by the bug, and we build with optimization
-# enabled (which happens e.g. when cross-compiling), the pool allocator may
-# get miscompiled.  Use -fno-strict-aliasing to work around this problem.
-# Since there is no reliable feature check for the presence of this bug,
-# we simply use a GCC version number check.  (This should never trigger for
-# stages 2 or 3 of a native bootstrap.)
-aliasing_flags=
-if test "$GCC" = yes; then
-  saved_CXXFLAGS="$CXXFLAGS"
-
-  # The following test compilation will succeed if and only if $CXX accepts
-  # -fno-strict-aliasing *and* is older than GCC 4.3.
-  CXXFLAGS="$CXXFLAGS -fno-strict-aliasing"
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX is affected by placement new aliasing bug" >&5
-$as_echo_n "checking whether $CXX is affected by placement new aliasing bug... " >&6; }
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
-#error compiler not affected by placement new aliasing bug
-#endif
-
-_ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; aliasing_flags='-fno-strict-aliasing'
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
-  CXXFLAGS="$saved_CXXFLAGS"
-fi
-
-
-
-
 # ---------------------
 # Warnings and checking
 # ---------------------
@@ -21522,7 +21482,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 21525 "configure"
+#line 21485 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -21628,7 +21588,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 21631 "configure"
+#line 21591 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H