[Bug 2684] New: [IcedTea7] AArch64 port not selected on architectures where host_cpu != aarch64

[bugzilla-daemon at icedtea.classpath.org]

http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=2684

            Bug ID: 2684
           Summary: [IcedTea7] AArch64 port not selected on architectures
                    where host_cpu != aarch64
           Product: IcedTea
           Version: 7-hg
          Hardware: aarch64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: IcedTea
          Assignee: gnu.andrew at redhat.com
          Reporter: gnu.andrew at redhat.com
                CC: unassigned at icedtea.classpath.org

Compare the use of host_cpu in:

AC_DEFUN_ONCE([IT_HAS_NATIVE_HOTSPOT_PORT],
[
  AC_MSG_CHECKING([if a native HotSpot port is available for this
architecture])
  has_native_hotspot_port=yes;
  case "${host_cpu}" in
    aarch64) ;;
    arm64) ;;
    i?86) ;;
    sparc) ;;
    x86_64) ;;
    powerpc64) ;;
    powerpc64le) ;;
    *) has_native_hotspot_port=no;
  esac
  AC_MSG_RESULT([$has_native_hotspot_port])
])

with:

AC_DEFUN([IT_SET_ARCH_SETTINGS],
[
  case "${host_cpu}" in
    x86_64)
      BUILD_ARCH_DIR=amd64
      INSTALL_ARCH_DIR=amd64
      JRE_ARCH_DIR=amd64
      ARCHFLAG="-m64"
      ;;
    i?86)
      BUILD_ARCH_DIR=i586
      INSTALL_ARCH_DIR=i386
      JRE_ARCH_DIR=i386
      ARCH_PREFIX=${LINUX32}
      ARCHFLAG="-m32"
      ;;
    alpha*)
      BUILD_ARCH_DIR=alpha
      INSTALL_ARCH_DIR=alpha
      JRE_ARCH_DIR=alpha
      ;;
    arm*)
      BUILD_ARCH_DIR=arm
      INSTALL_ARCH_DIR=arm
      JRE_ARCH_DIR=arm
      ARCHFLAG="-D_LITTLE_ENDIAN"
      ;;
    arm64|aarch64)
      BUILD_ARCH_DIR=aarch64
      INSTALL_ARCH_DIR=aarch64
      JRE_ARCH_DIR=aarch64
      ARCHFLAG="-D_LITTLE_ENDIAN"
      ;;
etc.

For 2.6.x, we'll just add arm64. In trunk/2.7, we'll re-use the
IT_SET_ARCH_SETTINGS results.

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