8156980: Hotspot build doesn't have -std=gnu++98 gcc option
authorandrew
Sun, 10 Jul 2016 22:00:03 +0100
changeset 39936 552923792fd8
parent 39682 05b48635a798
child 39937 9f3034c9c0a4
child 39938 8d5f6d6b8a24
child 39942 3b205bc6d958
child 39944 8688bada2551
8156980: Hotspot build doesn't have -std=gnu++98 gcc option 8157358: Syntax error in TOOLCHAIN_CHECK_COMPILER_VERSION Summary: Add flags for GCC 6 to JVM_CFLAGS and fix prefix handling Reviewed-by: erikj, kbarrett
common/autoconf/flags.m4
common/autoconf/generated-configure.sh
common/autoconf/spec.gmk.in
common/autoconf/toolchain.m4
--- a/common/autoconf/flags.m4	Fri Jul 08 12:17:09 2016 -0700
+++ b/common/autoconf/flags.m4	Sun Jul 10 22:00:03 2016 +0100
@@ -713,6 +713,7 @@
     FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [[$]$2CXXSTD_CXXFLAG -Werror],
     						 IF_FALSE: [$2CXXSTD_CXXFLAG=""])
     $2CXXFLAGS_JDK="${$2CXXFLAGS_JDK} ${$2CXXSTD_CXXFLAG}"
+    $2JVM_CFLAGS="${$2JVM_CFLAGS} ${$2CXXSTD_CXXFLAG}"
     AC_SUBST([$2CXXSTD_CXXFLAG])
   fi
   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
@@ -768,7 +769,7 @@
         $2CFLAGS_JDK="${$2CFLAGS_JDK} -fno-strict-aliasing"
         ;;
     esac
-    TOOLCHAIN_CHECK_COMPILER_VERSION(VERSION: 6, PREFIX: $2, IF_AT_LEAST: FLAGS_SETUP_GCC6_COMPILER_FLAGS)
+    TOOLCHAIN_CHECK_COMPILER_VERSION(VERSION: 6, PREFIX: $2, IF_AT_LEAST: FLAGS_SETUP_GCC6_COMPILER_FLAGS($2))
   elif test "x$TOOLCHAIN_TYPE" = xclang; then
     $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_GNU_SOURCE"
 
@@ -1447,19 +1448,24 @@
   AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS)
 ])
 
-AC_DEFUN_ONCE([FLAGS_SETUP_GCC6_COMPILER_FLAGS],
+# FLAGS_SETUP_GCC6_COMPILER_FLAGS([PREFIX])
+# Arguments:
+# $1 - Optional prefix for each variable defined.
+AC_DEFUN([FLAGS_SETUP_GCC6_COMPILER_FLAGS],
 [
   # These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code
   # runs afoul of the more aggressive versions of these optimisations.
   # Notably, value range propagation now assumes that the this pointer of C++
   # member functions is non-null.
-  NO_NULL_POINTER_CHECK_CFLAG="-fno-delete-null-pointer-checks"
-  FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_NULL_POINTER_CHECK_CFLAG -Werror],
-  					     IF_FALSE: [NO_NULL_POINTER_CHECK_CFLAG=""])
-  AC_SUBST([NO_NULL_POINTER_CHECK_CFLAG])
+  NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks"
+  dnl Argument check is disabled until FLAGS_COMPILER_CHECK_ARGUMENTS handles cross-compilation
+  dnl FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_DELETE_NULL_POINTER_CHECKS_CFLAG -Werror],
+  dnl					     IF_FALSE: [NO_DELETE_NULL_POINTER_CHECKS_CFLAG=""])
   NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"
-  FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_LIFETIME_DSE_CFLAG -Werror],
-  					     IF_FALSE: [NO_LIFETIME_DSE_CFLAG=""])
-  CFLAGS_JDK="${CFLAGS_JDK} ${NO_NULL_POINTER_CHECK_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
-  AC_SUBST([NO_LIFETIME_DSE_CFLAG])
+  dnl Argument check is disabled until FLAGS_COMPILER_CHECK_ARGUMENTS handles cross-compilation
+  dnl FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_LIFETIME_DSE_CFLAG -Werror],
+  dnl					     IF_FALSE: [NO_LIFETIME_DSE_CFLAG=""])
+  AC_MSG_NOTICE([GCC >= 6 detected; adding ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} and ${NO_LIFETIME_DSE_CFLAG}])
+  $1CFLAGS_JDK="[$]$1CFLAGS_JDK ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
+  $1JVM_CFLAGS="[$]$1JVM_CFLAGS ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
 ])
--- a/common/autoconf/generated-configure.sh	Fri Jul 08 12:17:09 2016 -0700
+++ b/common/autoconf/generated-configure.sh	Sun Jul 10 22:00:03 2016 +0100
@@ -749,8 +749,6 @@
 CFLAGS_JDKEXE
 CFLAGS_JDKLIB
 MACOSX_VERSION_MIN
-NO_LIFETIME_DSE_CFLAG
-NO_NULL_POINTER_CHECK_CFLAG
 CXXSTD_CXXFLAG
 CXX_O_FLAG_SIZE
 CXX_O_FLAG_NONE
@@ -4092,6 +4090,9 @@
 
 
 
+# FLAGS_SETUP_GCC6_COMPILER_FLAGS([PREFIX])
+# Arguments:
+# $1 - Optional prefix for each variable defined.
 
 
 #
@@ -5094,7 +5095,7 @@
 #CUSTOM_AUTOCONF_INCLUDE
 
 # Do not change or remove the following line, it is needed for consistency checks:
-DATE_WHEN_GENERATED=1467960715
+DATE_WHEN_GENERATED=1468427332
 
 ###############################################################################
 #
@@ -47232,6 +47233,28 @@
     BUILD_SYSROOT_CFLAGS="$SYSROOT_CFLAGS"
     BUILD_SYSROOT_LDFLAGS="$SYSROOT_LDFLAGS"
     BUILD_AR="$AR"
+
+
+  if test "x$CC_VERSION_NUMBER" != "x$CXX_VERSION_NUMBER"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: C and C++ compiler have different version numbers, $CC_VERSION_NUMBER vs $CXX_VERSION_NUMBER." >&5
+$as_echo "$as_me: WARNING: C and C++ compiler have different version numbers, $CC_VERSION_NUMBER vs $CXX_VERSION_NUMBER." >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: This typically indicates a broken setup, and is not supported" >&5
+$as_echo "$as_me: WARNING: This typically indicates a broken setup, and is not supported" >&2;}
+  fi
+
+  # We only check CC_VERSION_NUMBER since we assume CXX_VERSION_NUMBER is equal.
+  if  [[ "[$]CC_VERSION_NUMBER" =~ (.*\.){3} ]] ; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: C compiler version number has more than three parts (X.Y.Z): $CC_VERSION_NUMBER. Comparisons might be wrong." >&5
+$as_echo "$as_me: WARNING: C compiler version number has more than three parts (X.Y.Z): $CC_VERSION_NUMBER. Comparisons might be wrong." >&2;}
+  fi
+
+  if  [[  "[$]CC_VERSION_NUMBER" =~ [0-9]{6} ]] ; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: C compiler version number has a part larger than 99999: $CC_VERSION_NUMBER. Comparisons might be wrong." >&5
+$as_echo "$as_me: WARNING: C compiler version number has a part larger than 99999: $CC_VERSION_NUMBER. Comparisons might be wrong." >&2;}
+  fi
+
+  OPENJDK_BUILD_COMPARABLE_ACTUAL_VERSION=`$AWK -F. '{ printf("%05d%05d%05d\n", $1, $2, $3) }' <<< "$CC_VERSION_NUMBER"`
+
   fi
 
 
@@ -49781,6 +49804,7 @@
 
 
     CXXFLAGS_JDK="${CXXFLAGS_JDK} ${CXXSTD_CXXFLAG}"
+    JVM_CFLAGS="${JVM_CFLAGS} ${CXXSTD_CXXFLAG}"
 
   fi
   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
@@ -49913,542 +49937,12 @@
   # runs afoul of the more aggressive versions of these optimisations.
   # Notably, value range propagation now assumes that the this pointer of C++
   # member functions is non-null.
-  NO_NULL_POINTER_CHECK_CFLAG="-fno-delete-null-pointer-checks"
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-    # Execute function body
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-    # Execute function body
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if the C compiler supports \"$NO_NULL_POINTER_CHECK_CFLAG -Werror\"" >&5
-$as_echo_n "checking if the C compiler supports \"$NO_NULL_POINTER_CHECK_CFLAG -Werror\"... " >&6; }
-  supports=yes
-
-  saved_cflags="$CFLAGS"
-  CFLAGS="$CFLAGS $NO_NULL_POINTER_CHECK_CFLAG -Werror"
-  ac_ext=c
-ac_cpp='$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
-
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-int i;
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-
-else
-  supports=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  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
-
-  CFLAGS="$saved_cflags"
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $supports" >&5
-$as_echo "$supports" >&6; }
-  if test "x$supports" = "xyes" ; then
-    :
-    C_COMP_SUPPORTS="yes"
-  else
-    :
-    C_COMP_SUPPORTS="no"
-  fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-    # Execute function body
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if the C++ compiler supports \"$NO_NULL_POINTER_CHECK_CFLAG -Werror\"" >&5
-$as_echo_n "checking if the C++ compiler supports \"$NO_NULL_POINTER_CHECK_CFLAG -Werror\"... " >&6; }
-  supports=yes
-
-  saved_cxxflags="$CXXFLAGS"
-  CXXFLAGS="$CXXFLAG $NO_NULL_POINTER_CHECK_CFLAG -Werror"
-  ac_ext=cpp
-ac_cpp='$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
-
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-int i;
-_ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
-
-else
-  supports=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  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
-
-  CXXFLAGS="$saved_cxxflags"
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $supports" >&5
-$as_echo "$supports" >&6; }
-  if test "x$supports" = "xyes" ; then
-    :
-    CXX_COMP_SUPPORTS="yes"
-  else
-    :
-    CXX_COMP_SUPPORTS="no"
-  fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if both compilers support \"$NO_NULL_POINTER_CHECK_CFLAG -Werror\"" >&5
-$as_echo_n "checking if both compilers support \"$NO_NULL_POINTER_CHECK_CFLAG -Werror\"... " >&6; }
-  supports=no
-  if test "x$C_COMP_SUPPORTS" = "xyes" -a "x$CXX_COMP_SUPPORTS" = "xyes"; then supports=yes; fi
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $supports" >&5
-$as_echo "$supports" >&6; }
-  if test "x$supports" = "xyes" ; then
-    :
-
-  else
-    :
-    NO_NULL_POINTER_CHECK_CFLAG=""
-  fi
-
-
-
-
-
-
-
-  NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-    # Execute function body
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-    # Execute function body
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if the C compiler supports \"$NO_LIFETIME_DSE_CFLAG -Werror\"" >&5
-$as_echo_n "checking if the C compiler supports \"$NO_LIFETIME_DSE_CFLAG -Werror\"... " >&6; }
-  supports=yes
-
-  saved_cflags="$CFLAGS"
-  CFLAGS="$CFLAGS $NO_LIFETIME_DSE_CFLAG -Werror"
-  ac_ext=c
-ac_cpp='$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
-
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-int i;
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-
-else
-  supports=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  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
-
-  CFLAGS="$saved_cflags"
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $supports" >&5
-$as_echo "$supports" >&6; }
-  if test "x$supports" = "xyes" ; then
-    :
-    C_COMP_SUPPORTS="yes"
-  else
-    :
-    C_COMP_SUPPORTS="no"
-  fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-    # Execute function body
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if the C++ compiler supports \"$NO_LIFETIME_DSE_CFLAG -Werror\"" >&5
-$as_echo_n "checking if the C++ compiler supports \"$NO_LIFETIME_DSE_CFLAG -Werror\"... " >&6; }
-  supports=yes
-
-  saved_cxxflags="$CXXFLAGS"
-  CXXFLAGS="$CXXFLAG $NO_LIFETIME_DSE_CFLAG -Werror"
-  ac_ext=cpp
-ac_cpp='$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
-
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-int i;
-_ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
-
-else
-  supports=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  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
-
-  CXXFLAGS="$saved_cxxflags"
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $supports" >&5
-$as_echo "$supports" >&6; }
-  if test "x$supports" = "xyes" ; then
-    :
-    CXX_COMP_SUPPORTS="yes"
-  else
-    :
-    CXX_COMP_SUPPORTS="no"
-  fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if both compilers support \"$NO_LIFETIME_DSE_CFLAG -Werror\"" >&5
-$as_echo_n "checking if both compilers support \"$NO_LIFETIME_DSE_CFLAG -Werror\"... " >&6; }
-  supports=no
-  if test "x$C_COMP_SUPPORTS" = "xyes" -a "x$CXX_COMP_SUPPORTS" = "xyes"; then supports=yes; fi
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $supports" >&5
-$as_echo "$supports" >&6; }
-  if test "x$supports" = "xyes" ; then
-    :
-
-  else
-    :
-    NO_LIFETIME_DSE_CFLAG=""
-  fi
-
-
-
-
-
-
-  CFLAGS_JDK="${CFLAGS_JDK} ${NO_NULL_POINTER_CHECK_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
-
-
+  NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks"
+        NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: GCC >= 6 detected; adding ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} and ${NO_LIFETIME_DSE_CFLAG}" >&5
+$as_echo "$as_me: GCC >= 6 detected; adding ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} and ${NO_LIFETIME_DSE_CFLAG}" >&6;}
+  CFLAGS_JDK="$CFLAGS_JDK ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
+  JVM_CFLAGS="$JVM_CFLAGS ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
 
   else
     :
@@ -51127,6 +50621,7 @@
 
 
     OPENJDK_BUILD_CXXFLAGS_JDK="${OPENJDK_BUILD_CXXFLAGS_JDK} ${OPENJDK_BUILD_CXXSTD_CXXFLAG}"
+    OPENJDK_BUILD_JVM_CFLAGS="${OPENJDK_BUILD_JVM_CFLAGS} ${OPENJDK_BUILD_CXXSTD_CXXFLAG}"
 
   fi
   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
@@ -51255,6 +50750,17 @@
   if test $OPENJDK_BUILD_COMPARABLE_ACTUAL_VERSION -ge $COMPARABLE_REFERENCE_VERSION ; then
     :
 
+  # These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code
+  # runs afoul of the more aggressive versions of these optimisations.
+  # Notably, value range propagation now assumes that the this pointer of C++
+  # member functions is non-null.
+  NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks"
+        NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: GCC >= 6 detected; adding ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} and ${NO_LIFETIME_DSE_CFLAG}" >&5
+$as_echo "$as_me: GCC >= 6 detected; adding ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} and ${NO_LIFETIME_DSE_CFLAG}" >&6;}
+  OPENJDK_BUILD_CFLAGS_JDK="$OPENJDK_BUILD_CFLAGS_JDK ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
+  OPENJDK_BUILD_JVM_CFLAGS="$OPENJDK_BUILD_JVM_CFLAGS ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
+
   else
     :
 
--- a/common/autoconf/spec.gmk.in	Fri Jul 08 12:17:09 2016 -0700
+++ b/common/autoconf/spec.gmk.in	Sun Jul 10 22:00:03 2016 +0100
@@ -391,8 +391,6 @@
 WARNINGS_AS_ERRORS := @WARNINGS_AS_ERRORS@
 
 CFLAGS_CCACHE:=@CFLAGS_CCACHE@
-NO_NULL_POINTER_CHECK_FLAG=@NO_NULL_POINTER_CHECK_CFLAG@
-NO_LIFETIME_DSE_CFLAG=@NO_LIFETIME_DSE_CFLAG@
 CXXSTD_CXXFLAG=@CXXSTD_CXXFLAG@
 
 # Tools that potentially need to be cross compilation aware.
--- a/common/autoconf/toolchain.m4	Fri Jul 08 12:17:09 2016 -0700
+++ b/common/autoconf/toolchain.m4	Sun Jul 10 22:00:03 2016 +0100
@@ -831,6 +831,8 @@
     BUILD_SYSROOT_CFLAGS="$SYSROOT_CFLAGS"
     BUILD_SYSROOT_LDFLAGS="$SYSROOT_LDFLAGS"
     BUILD_AR="$AR"
+    
+    TOOLCHAIN_PREPARE_FOR_VERSION_COMPARISONS([], [OPENJDK_BUILD_])
   fi
 
   AC_SUBST(BUILD_CC)