libgpiod 1.6.4 Python bindings build failure

[dasch8]

Hi,

When building the Python bindings for libgpiod 1.6.4, the native Python headers are used instead of the one for the target. In my case I was building on an x86-64 build host for an armv7 target. The build failed with the following error during compilation:

libtool: compile:  arm-openbmc-linux-gnueabi-gcc -mfpu=vfpv3 -mfloat-abi=hard -mcpu=cortex-a9 -fstack-protector-strong -O2 -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security -Werror=format-security --sysroot=/yocto/buildir/tmp/work/cortexa9hf-vfpv3-openbmc-linux-gnueabi/libgpiod/1.6.4-r0/recipe-sysroot -DHAVE_CONFIG_H -I. -I../../../libgpiod-1.6.4/bindings/python -I../.. -I../../../libgpiod-1.6.4/include/ -Wall -Wextra -g -std=gnu89 -I/yocto/buildir/tmp/work/cortexa9hf-vfpv3-openbmc-linux-gnueabi/libgpiod/1.6.4-r0/recipe-sysroot-native/usr/include/python3.11 -I/yocto/buildir/tmp/work/cortexa9hf-vfpv3-openbmc-linux-gnueabi/libgpiod/1.6.4-r0/recipe-sysroot-native/usr/include/python3.11 -O2 -pipe -g -feliminate-unused-debug-types -fmacro-prefix-map=/yocto/buildir/tmp/work/cortexa9hf-vfpv3-openbmc-linux-gnueabi/libgpiod/1.6.4-r0/libgpiod-1.6.4=/usr/src/debug/libgpiod/1.6.4-r0 -fdebug-prefix-map=/yocto/buildir/tmp/work/cortexa9hf-vfpv3-openbmc-linux-gnueabi/libgpiod/1.6.4-r0/libgpiod-1.6.4=/usr/src/debug/libgpiod/1.6.4-r0 -fmacro-prefix-map=/yocto/buildir/tmp/work/cortexa9hf-vfpv3-openbmc-linux-gnueabi/libgpiod/1.6.4-r0/build=/usr/src/debug/libgpiod/1.6.4-r0 -fdebug-prefix-map=/yocto/buildir/tmp/work/cortexa9hf-vfpv3-openbmc-linux-gnueabi/libgpiod/1.6.4-r0/build=/usr/src/debug/libgpiod/1.6.4-r0 -fdebug-prefix-map=/yocto/buildir/tmp/work/cortexa9hf-vfpv3-openbmc-linux-gnueabi/libgpiod/1.6.4-r0/recipe-sysroot= -fmacro-prefix-map=/yocto/buildir/tmp/work/cortexa9hf-vfpv3-openbmc-linux-gnueabi/libgpiod/1.6.4-r0/recipe-sysroot= -fdebug-prefix-map=/yocto/buildir/tmp/work/cortexa9hf-vfpv3-openbmc-linux-gnueabi/libgpiod/1.6.4-r0/recipe-sysroot-native= -c ../../../libgpiod-1.6.4/bindings/python/gpiodmodule.c  -fPIC -DPIC -o .libs/gpiod_la-gpiodmodule.o
In file included from /yocto/buildir/tmp/work/cortexa9hf-vfpv3-openbmc-linux-gnueabi/libgpiod/1.6.4-r0/recipe-sysroot-native/usr/include/python3.11/Python.h:38,
                 from ../../../libgpiod-1.6.4/bindings/python/gpiodmodule.c:8:
/yocto/buildir/tmp/work/cortexa9hf-vfpv3-openbmc-linux-gnueabi/libgpiod/1.6.4-r0/recipe-sysroot-native/usr/include/python3.11/pyport.h:601:2: error: #error "LONG_BIT definition appears wrong for platform (bad gcc/glibc config?)."
  601 | #error "LONG_BIT definition appears wrong for platform (bad gcc/glibc config?)."
      |  ^~~~~

Inheriting the python3targetconfig class instead of python3native fixes this.