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Add section to provide some documentation for cross-compiling. 

git-svn-id: svn://svn.berlios.de/openocd/trunk@2502 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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zwelch 2009-07-08 22:26:36 +00:00
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README
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@ -166,6 +166,29 @@ will build OpenOCD and place the final executable in ./src/. The
final (optional) step, ``make install'', places all of the files in the
required location.
Cross-Compiling Options
-----------------------
To cross-compile, you must specify both --build and --host options to
the 'configure' script. For example, you can configure OpenOCD to
cross-compile on a x86 Linux host to run on Windows (MinGW32), you could
use the following configuration options:
./configure --build=i686-pc-linux-gnu --host=i586-mingw32msvc ...
Likewise, the following options allow OpenOCD to be cross-compiled for
an ARM target on the same x86 host:
./configure --build=i686-pc-linux-gnu --host=arm-elf ...
Both must be specified to work around bugs in autoconf.
Scripts for producing ARM cross-compilers can be found on the web with a
little searching. A script to produce an x86 Linux-hosted MinGW32
cross-compiler can be downloaded from the following URL:
http://www.mingw.org/wiki/LinuxCrossMinGW
Configuration Options
---------------------