Keywords: Intellon, Atheros, Qualcomm, HomePlug, powerline, communications, INT6000, INT6300, INT6400, AR7400, AR7420

Cross-Compiling on GNU/Linux
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## Cross-Compiling on GNU/Linux

Makefiles are setup for cross-compilation using custom toolchains. File `make.def`, in the main toolkit folder, defines cross-comilation symbols referenced in lower-level makefiles. Lower-level makefiles include `make.def` before building their targets. The following is an example `make.def` file used when cross-compiling for the ADM5120 MIPSEL-based gateway.

Example 3.3. Cross-compiling with make.def

    # file: make.def

    # ====================================================================
    # Edimax Hardware;
    # --------------------------------------------------------------------

    PLATFORM=-D_ADM5120_
    MODEL=-D_6104KP_
    ENDIAN=-D_LITTLE_ENDIAN_
    GATEWAY=y

    # ====================================================================
    # AMiLDA Software; uncomment these lines when cross-compiling;
    # --------------------------------------------------------------------

    # CROSS=/export/tools/mipsel-linux-uclibc/bin/mipsel-uclibc-
    # CROSS_LINUX=/export/tools/bin/mipsel-linux-

    # ====================================================================
    # toolchain;
    # --------------------------------------------------------------------

    CC=$(CROSS)gcc
    STRIP=$(CROSS)strip
    LD=$(CROSS)ld
    AR=$(CROSS)ar
    RANLIB=$(CROSS)ranlib
    CAS=$(CROSS)gcc -c
    CPP=$(CROSS)gcc -E

    # ====================================================================
    # folders;
    # --------------------------------------------------------------------

    BIN=/usr/local/bin
    MAN=/usr/share/man/man7
    WWW=/home/www
    DOC=/home/www/software/plc-utils/

    # ====================================================================
    # permissions;
    # --------------------------------------------------------------------

    OWNER=0
    GROUP=0

Developers are encouraged to make changes in this file rather than adding additional variables to the lower-level makefiles. For example, you can edit variable `BIN` to install toolkit programs in some location other than `/usr/local/bin` or variable `WWW` to install HTML documentation on your local website.

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