[Buildroot] [PATCH v2] python-crc16: new package

[Michael Rommel]

Hi Peter,

I found the culprit. LDFLAGS was missing. I'll test that tomorrow again, also with python-pyzmq to make sure it works in arm/powerpc/i586.

Thanks,

  Michael.

-- 
Michael Rommel, Erlangen, Germany

On Sep 17, 2013, at 23:36 , Peter Korsgaard <jacmet at uclibc.org> wrote:

>>>>>> "Michael" == Michael Rommel <rommel at layer-7.net> writes:
> 
> Michael> A python library that calculates CRC checksums of the CCITT/XModem
> Michael> variant.
> 
> Michael> Signed-off-by: Michael Rommel <rommel at layer-7.net>
> Michael> ---
> Michael> Changes v1 -> v2
> Michael>  * corrected a typo in the filename for the .mk file
> 
> Michael>  package/Config.in                    |    1 +
> Michael>  package/python-crc16/Config.in       |   11 +++++++++++
> Michael>  package/python-crc16/python-crc16.mk |   34 ++++++++++++++++++++++++++++++++++
> Michael>  3 files changed, 46 insertions(+)
> Michael>  create mode 100644 package/python-crc16/Config.in
> Michael>  create mode 100644 package/python-crc16/python-crc16.mk
> 
> Michael> diff --git a/package/Config.in b/package/Config.in
> Michael> index 2884bfb..ccd5e11 100644
> Michael> --- a/package/Config.in
> Michael> +++ b/package/Config.in
> Michael> @@ -385,6 +385,7 @@ source "package/python/Config.in"
> Michael>  if BR2_PACKAGE_PYTHON
> Michael>  menu "external python modules"
> Michael>  source "package/python-bottle/Config.in"
> Michael> +source "package/python-crc16/Config.in"
> Michael>  source "package/python-dpkt/Config.in"
> Michael>  source "package/python-id3/Config.in"
> Michael>  source "package/python-mad/Config.in"
> Michael> diff --git a/package/python-crc16/Config.in b/package/python-crc16/Config.in
> Michael> new file mode 100644
> Michael> index 0000000..d5c62e9
> Michael> --- /dev/null
> Michael> +++ b/package/python-crc16/Config.in
> Michael> @@ -0,0 +1,11 @@
> Michael> +config BR2_PACKAGE_PYTHON_CRC16
> Michael> +	bool "python-crc16"
> Michael> +	depends on BR2_PACKAGE_PYTHON
> Michael> +	help
> Michael> +	  This library calculates only CRC16 (16-bit codes) and the
> Michael> +	  only supported variant at the moment is CRC-CCITT (XModem).
> Michael> +	  CRC is a way of detecting accidental changes in data storage
> Michael> +	  or transmission. There are many variants of CRC and CRC16,
> Michael> +	  in particular.
> Michael> +
> Michael> +	  http://pycrc16.googlecode.com/files/crc16-0.1.1.tar.gz
> 
> The URL should just be the homepage, so without /files/..
> 
> I was just about to commit it, but it doesn't build here
> (qemu_arm_versatile_defconfig + default external codesourcery
> toolchain):
> 
> building 'crc16._crc16' extension
> creating build/temp.linux-x86_64-2.7
> creating build/temp.linux-x86_64-2.7/src
> /home/peko/source/buildroot/output/host/usr/bin/arm-none-linux-gnueabi-gcc -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -pipe -Os -fPIC -I/home/peko/source/buildroot/output/build/python-2.7.3/Include -I/home/peko/source/buildroot/output/build/python-2.7.3 -c src/_crc16module.c -o build/temp.linux-x86_64-2.7/src/_crc16module.o
> /home/peko/source/buildroot/output/host/usr/bin/arm-none-linux-gnueabi-gcc -shared -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -pipe -Os build/temp.linux-x86_64-2.7/src/_crc16module.o -L/usr/lib -lpython2.7 -o build/lib.linux-x86_64-2.7/crc16/_crc16.so
> /home/peko/source/buildroot/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabi/4.7.3/../../../../arm-none-linux-gnueabi/bin/ld: warning: library search path "/usr/lib" is unsafe for cross-compilation
> /usr/lib/libpython2.7.so: file not recognized: File format not recognized
> collect2: error: ld returned 1 exit status
> 
> It seems like it tries to build it natively instead of for the
> target. Any ideas?
> 
> -- 
> Bye, Peter Korsgaard

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