# This scripts calls each component's build script.

 # Copyright 2007 Yann E. MORIN

 # Licensed under the GPL v2. See COPYING in the root of this package

 # Parse all build files to have the needed functions.

 . "${CT_TOP_DIR}/scripts/build/kernel_${CT_KERNEL}.sh"

 . "${CT_TOP_DIR}/scripts/build/binutils.sh"

 . "${CT_TOP_DIR}/scripts/build/libc_libfloat.sh"

 . "${CT_TOP_DIR}/scripts/build/libc_${CT_LIBC}.sh"

 . "${CT_TOP_DIR}/scripts/build/cc_core_${CT_CC_CORE}.sh"

 . "${CT_TOP_DIR}/scripts/build/cc_${CT_CC}.sh"

 # Arrange paths depending on wether we use sys-root or not.

 if [ "${CT_USE_SYSROOT}" = "y" ]; then

     CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}/sys-root"

     CT_HEADERS_DIR="${CT_SYSROOT_DIR}/usr/include"

     BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"

     CC_CORE_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"

     CC_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"

     LIBC_SYSROOT_ARG=""

     # glibc's prefix must be exactly /usr, else --with-sysroot'd gcc will get

     # confused when $sysroot/usr/include is not present.

     # Note: --prefix=/usr is magic!

     # See http://www.gnu.org/software/libc/FAQ.html#s-2.2

 else

     # plain old way. All libraries in prefix/target/lib

     CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}"

     CT_HEADERS_DIR="${CT_SYSROOT_DIR}/include"

     # hack!  Always use --with-sysroot for binutils.

     # binutils 2.14 and later obey it, older binutils ignore it.

     # Lets you build a working 32->64 bit cross gcc

     BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"

     # Use --with-headers, else final gcc will define disable_glibc while

     # building libgcc, and you'll have no profiling

     CC_CORE_SYSROOT_ARG="--without-headers"

     CC_SYSROOT_ARG="--with-headers=${CT_HEADERS_DIR}"

     LIBC_SYSROOT_ARG="prefix="

 fi

 # Prepare the 'lib' directories in sysroot, else the ../lib64 hack used by

 # 32 -> 64 bit crosscompilers won't work, and build of final gcc will fail with

 #  "ld: cannot open crti.o: No such file or directory"

 mkdir -p "${CT_SYSROOT_DIR}/lib"

 mkdir -p "${CT_SYSROOT_DIR}/usr/lib"

 # Canadian-cross are really picky on the way they are built. Tweak the values.

 if [ "${CT_CANADIAN}" = "y" ]; then

     # Arrange so that gcc never, ever think that build system == host system

     CT_CANADIAN_OPT="--build=`echo \"${CT_BUILD}\" |sed -r -e 's/-/-build_/'`"

     # We shall have a compiler for this target!

     # Do test here...

 else

     CT_HOST="${CT_BUILD}"

     CT_CANADIAN_OPT=

     # Add the target toolchain in the path so that we can build the C library

     export PATH="${CT_PREFIX_DIR}/bin:${CT_CC_CORE_PREFIX_DIR}/bin:${PATH}"

 fi

 # Modify GCC_HOST to never be equal to $BUILD or $TARGET

 # This strange operation causes gcc to always generate a cross-compiler

 # even if the build machine is the same kind as the host.

 # This is why CC has to be set when doing a canadian cross; you can't find a

 # host compiler by appending -gcc to our whacky $GCC_HOST

 # Kludge: it is reported that the above causes canadian crosses with cygwin

 # hosts to fail, so avoid it just in that one case.  It would be cleaner to

 # just move this into the non-canadian case above, but I'm afraid that might

 # cause some configure script somewhere to decide that since build==host, they

 # could run host binaries.

 # (Copied almost as-is from original crosstool):

 case "${CT_KERNEL},${CT_CANADIAN}" in

     cygwin,y) ;;

     *)        CT_HOST="`echo \"${CT_HOST}\" |sed -r -e 's/-/-host_/;'`";;

 esac

 # Ah! Recent versions of binutils need some of the build and/or host system

 # (read CT_BUILD and CT_HOST) tools to be accessible (ar is but an example).

 # Do that:

 CT_DoLog EXTRA "Making build system tools available"

 mkdir -p "${CT_PREFIX_DIR}/bin"

 for tool in ar; do

     ln -s "`which ${tool}`" "${CT_PREFIX_DIR}/bin/${CT_BUILD}-${tool}"

     ln -s "`which ${tool}`" "${CT_PREFIX_DIR}/bin/${CT_HOST}-${tool}"

 done

 # Ha. cygwin host have an .exe suffix (extension) for executables.

 [ "${CT_KERNEL}" = "cygwin" ] && EXEEXT=".exe" || EXEEXT=""

 # Transform the ARCH into a kernel-understandable ARCH

 case "${CT_ARCH}" in

     x86) CT_KERNEL_ARCH=i386;;

     ppc) CT_KERNEL_ARCH=powerpc;;

     *)   CT_KERNEL_ARCH="${CT_ARCH}";;

 esac

 # Build up the TARGET_CFLAGS from user-provided options

 tmp_target_CFLAGS=

 [ -n "${CT_ARCH_CPU}" ]  && tmp_target_CFLAGS="${tmp_target_CFLAGS} -mcpu=${CT_ARCH_CPU}"

 [ -n "${CT_ARCH_TUNE}" ] && tmp_target_CFLAGS="${tmp_target_CFLAGS} -mtune=${CT_ARCH_TUNE}"

 [ -n "${CT_ARCH_ARCH}" ] && tmp_target_CFLAGS="${tmp_target_CFLAGS} -march=${CT_ARCH_ARCH}"

 [ -n "${CT_ARCH_FPU}" ]  && tmp_target_CFLAGS="${tmp_target_CFLAGS} -mfpu=${CT_ARCH_FPU}"

 # Override with user-specified CFLAGS

 CT_TARGET_CFLAGS="${tmp_target_CFLAGS} ${CT_TARGET_CFLAGS}"

 # Help gcc

 CT_CFLAGS_FOR_HOST=

 [ "${CT_USE_PIPES}" = "y" ] && CT_CFLAGS_FOR_HOST="${CT_CFLAGS_FOR_HOST} -pipe"

 # And help make go faster

 PARALLELMFLAGS=

 [ ${CT_PARALLEL_JOBS} -ne 0 ] && PARALLELMFLAGS="${PARALLELMFLAGS} -j${CT_PARALLEL_JOBS}"

 [ ${CT_LOAD} -ne 0 ] && PARALLELMFLAGS="${PARALLELMFLAGS} -l${CT_LOAD}"

 CT_DoStep EXTRA "Dumping internal crosstool-NG configuration"

 CT_DoLog EXTRA "Building a toolchain for:"

 CT_DoLog EXTRA "  build  = ${CT_BUILD}"

 CT_DoLog EXTRA "  host   = ${CT_HOST}"

 CT_DoLog EXTRA "  target = ${CT_TARGET}"

 set |egrep '^CT_.+=' |sort |CT_DoLog DEBUG

 CT_EndStep

 # Now for the job by itself.

 # Check the C library config ASAP, before the user gets bored, and is

 # gone having his/her coffee

 do_libc_check_config

 do_kernel_check_config

 do_kernel_headers

 do_binutils

 do_libc_headers

 do_cc_core

 do_libfloat

 do_libc

 do_cc

 do_libc_finish