--- a/common/autoconf/flags.m4	Sat Mar 19 01:28:49 2016 +0000
+++ b/common/autoconf/flags.m4	Tue Mar 22 10:44:28 2016 +0000
@@ -699,9 +699,6 @@
       ;;
   esac
 
-  # Setup LP64
-  COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK $ADD_LP64"
-
   # Set some common defines. These works for all compilers, but assume
   # -D is universally accepted.
 
@@ -732,7 +729,12 @@
   COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE"
 
   # Setup target CPU
-  COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY"
+  OPENJDK_TARGET_CCXXFLAGS_JDK="$OPENJDK_TARGET_CCXXFLAGS_JDK \
+      $ADD_LP64 \
+      -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY"
+  OPENJDK_BUILD_CCXXFLAGS_JDK="$OPENJDK_BUILD_CCXXFLAGS_JDK \
+      $OPENJDK_BUILD_ADD_LP64 \
+      -DARCH='\"$OPENJDK_BUILD_CPU_LEGACY\"' -D$OPENJDK_BUILD_CPU_LEGACY"
 
   # Setup debug/release defines
   if test "x$DEBUG_LEVEL" = xrelease; then
@@ -776,17 +778,35 @@
       -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/libjava"
 
   # The shared libraries are compiled using the picflag.
-  CFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
-  CXXFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA"
+  CFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $OPENJDK_TARGET_CCXXFLAGS_JDK \
+      $CFLAGS_JDK $EXTRA_CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
+  CXXFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $OPENJDK_TARGET_CCXXFLAGS_JDK \
+      $CXXFLAGS_JDK $EXTRA_CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA"
 
   # Executable flags
-  CFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK"
-  CXXFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK"
+  CFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $OPENJDK_TARGET_CCXXFLAGS_JDK \
+      $CFLAGS_JDK $EXTRA_CFLAGS_JDK"
+  CXXFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $OPENJDK_TARGET_CCXXFLAGS_JDK \
+      $CXXFLAGS_JDK $EXTRA_CXXFLAGS_JDK"
+
+  # The corresponding flags for building for the build platform. This is still an
+  # approximation, we only need something that runs on this machine when cross
+  # compiling the product.
+  OPENJDK_BUILD_CFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $OPENJDK_BUILD_CCXXFLAGS_JDK \
+      $PICFLAG $CFLAGS_JDKLIB_EXTRA"
+  OPENJDK_BUILD_CXXFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $OPENJDK_BUILD_CCXXFLAGS_JDK \
+      $PICFLAG $CXXFLAGS_JDKLIB_EXTRA"
+  OPENJDK_BUILD_CFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $OPENJDK_BUILD_CCXXFLAGS_JDK"
+  OPENJDK_BUILD_CXXFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $OPENJDK_BUILD_CCXXFLAGS_JDK"
 
   AC_SUBST(CFLAGS_JDKLIB)
   AC_SUBST(CFLAGS_JDKEXE)
   AC_SUBST(CXXFLAGS_JDKLIB)
   AC_SUBST(CXXFLAGS_JDKEXE)
+  AC_SUBST(OPENJDK_BUILD_CFLAGS_JDKLIB)
+  AC_SUBST(OPENJDK_BUILD_CFLAGS_JDKEXE)
+  AC_SUBST(OPENJDK_BUILD_CXXFLAGS_JDKLIB)
+  AC_SUBST(OPENJDK_BUILD_CXXFLAGS_JDKEXE)
 
   # Flags for compiling test libraries
   CFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
@@ -879,6 +899,9 @@
     LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Wl,--allow-shlib-undefined"
   fi
 
+  OPENJDK_BUILD_LDFLAGS_JDKEXE="${LDFLAGS_JDKEXE}"
+  LDFLAGS_JDKEXE="${LDFLAGS_JDKEXE} ${EXTRA_LDFLAGS_JDK}"
+
   # Customize LDFLAGS for libs
   LDFLAGS_JDKLIB="${LDFLAGS_JDK}"
 
@@ -889,30 +912,39 @@
     JDKLIB_LIBS=""
   else
     LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} \
-        -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}"
+        -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base\$(OPENJDK_TARGET_CPU_LIBDIR)"
 
     # On some platforms (mac) the linker warns about non existing -L dirs.
     # Add server first if available. Linking aginst client does not always produce the same results.
     # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1.
     # Default to server for other variants.
     if test "x$JVM_VARIANT_SERVER" = xtrue; then
-      LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server"
+      LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base\$(OPENJDK_TARGET_CPU_LIBDIR)/server"
     elif test "x$JVM_VARIANT_CLIENT" = xtrue; then
-      LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/client"
+      LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base\$(OPENJDK_TARGET_CPU_LIBDIR)/client"
     elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then
-      LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/minimal"
+      LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base\$(OPENJDK_TARGET_CPU_LIBDIR)/minimal"
     else
-      LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server"
+      LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base\$(OPENJDK_TARGET_CPU_LIBDIR)/server"
     fi
 
     JDKLIB_LIBS="-ljava -ljvm"
     if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
       JDKLIB_LIBS="$JDKLIB_LIBS -lc"
     fi
+
+    # When building a buildjdk, it's always only the server variant
+    OPENJDK_BUILD_LDFLAGS_JDKLIB="${OPENJDK_BUILD_LDFLAGS_JDKLIB} \
+        -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base\$(OPENJDK_TARGET_CPU_LIBDIR)/server"
   fi
 
+  OPENJDK_BUILD_LDFLAGS_JDKLIB="${OPENJDK_BUILD_LDFLAGS_JDKLIB} ${LDFLAGS_JDKLIB}"
+  LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} ${EXTRA_LDFLAGS_JDK}"
+
   AC_SUBST(LDFLAGS_JDKLIB)
   AC_SUBST(LDFLAGS_JDKEXE)
+  AC_SUBST(OPENJDK_BUILD_LDFLAGS_JDKLIB)
+  AC_SUBST(OPENJDK_BUILD_LDFLAGS_JDKEXE)
   AC_SUBST(JDKLIB_LIBS)
   AC_SUBST(JDKEXE_LIBS)
   AC_SUBST(LDFLAGS_CXX_JDK)
@@ -1130,6 +1162,7 @@
       ;;
   esac
   AC_SUBST(DISABLE_WARNING_PREFIX)
+  AC_SUBST(BUILD_CC_DISABLE_WARNING_PREFIX)
   AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS)
 ])