- arch=`uname -m`
- case x"$arch" in
- xx86_64|xi*86)
- save_CFLAGS="$CFLAGS"
- save_LIBS="$LIBS"
- LIBS="-ldl"
- CFLAGS="-m64"
- AC_MSG_CHECKING([if ]$CC[ ]$CFLAGS[ can link programs])
- AC_LINK_IFELSE([AC_LANG_PROGRAM([])],
- [M64_LINK=yes],
- [M64_LINK=no])
- AC_MSG_RESULT([$M64_LINK])
- CFLAGS="-m32"
- AC_MSG_CHECKING([if ]$CC[ ]$CFLAGS[ can link programs])
- AC_LINK_IFELSE([AC_LANG_PROGRAM([])],
- [M32_LINK=yes],
- [M32_LINK=no])
- AC_MSG_RESULT([$M32_LINK])
- CFLAGS="$save_CFLAGS"
- LIBS="$save_LIBS"
- case x"$M64_LINK"x"$M32_LINK" in
- xyesxyes)
- MULTI_ARCH=yes
+ MULTI_ARCH=yes
+ for arch in i686-linux-gnu x86_64-linux-gnu aarch64-linux-gnu arm-linux-gnueabi arm-linux-gnueabihf; do
+ crossgcc="$arch"-gcc
+ AC_CHECK_PROG(ARCH_SUPPORTED,$crossgcc,yes,no)
+ case "$ARCH_SUPPORTED" in
+ yes)