This patch is originally from here: http://bugs.gentoo.org/attachment.cgi?id=130627
Add documentation for cross compilation scenario. Signed-off-by: Robert Schwebel <r.schwe...@pengutronix.de> --- README | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) Index: Python-3.0/README =================================================================== --- Python-3.0.orig/README +++ Python-3.0/README @@ -156,6 +156,50 @@ there. For example: should do a "make clean" at the toplevel first.) +Cross Compiling +--------------- + +Python can be cross compiled by supplying different --build and --host +parameters to configure. Python is compiled on the "build" system and +executed on the "host" system. Cross compiling python requires a +native Python on the build host, and a natively compiled tool `Pgen'. + +Before cross compiling, Python must first be compiled and installed on +the build host. The configure script will use `cc' and `python', or +environment variables CC_FOR_BUILD or PYTHON_FOR_BUILD, eg: + + CC_FOR_BUILD=gcc-3.3 \ + PYTHON_FOR_BUILD=python3.0 \ + .../configure --build=i686-linux --host=i586-mingw32 + +Cross compiling has been tested under linux, mileage may vary for +other platforms. + +A few reminders on using configure to cross compile: + +- Cross compile tools must be in PATH, + +- Cross compile tools must be prefixed with the host type + (ie i586-mingw32-gcc, powerpc-darwin8-ranlib, ...), + +- CC, CXX, AR, and RANLIB must be undefined when running configure, + they will be auto-detected. + +- Autoconf must be stopped from autodetecting definitions for the + build machine. This is easiest done by creating a config.cache + that overrides ac_cv_* variables appropriately. + +If you need a cross compiler, Debian ships several several (eg: avr, +m68hc1x, mingw32), while dpkg-cross easily creates others. Otherwise, +check out one of these cross toolchain projects: + +- crosstool: + http://www.kegel.com/crosstool + +- OSELAS.Toolchain: + http://www.pengutronix.de/oselas/toolchain/index_en.html + + Copyright and License Information --------------------------------- -- Pengutronix e.K. | Dipl.-Ing. Robert Schwebel | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
