package/python/002-fix-get-python-inc.patch

   1 Fix get_python_inc() for cross-compilation
   2
   3 When we are cross compiling, doing os.path.dirname(sys.executable) to
   4 get the build directory is incorrect, because we're executing the host
   5 Python to build things for the target. Instead, we should use the
   6 project_base variable.
   7
   8 This fixes cross-compilation, which was adding incorrect header paths
   9 pointing to the location where the host Python was built:
  10
  11 /home/thomas/projets/buildroot/output/host/usr/bin/arm-none-linux-gnueabi-gcc -fPIC -fno-strict-aliasing \
  12   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -pipe -Os -DNDEBUG -g -O3 -Wall -Wstrict-prototypes \
  13   -I/usr/include -I. -IInclude -I./Include -I/home/thomas/projets/buildroot/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/include \
  14   -I/home/thomas/projets/buildroot/output/host/usr/bin/Include -I/home/thomas/projets/buildroot/output/host/usr/bin \
  15   -c /home/thomas/projets/buildroot/output/build/python-2.7.6/Modules/_struct.c \
  16   -o build/temp.linux2-arm-2.7/home/thomas/projets/buildroot/output/build/python-2.7.6/Modules/_struct.o
  17
  18 This patch allows to fix the
  19 /home/thomas/projets/buildroot/output/host/usr/bin/Include and
  20 /home/thomas/projets/buildroot/output/host/usr/bin paths that are
  21 incorrectly added to the header paths.
  22
  23 Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
  24 Index: b/Lib/distutils/sysconfig.py
  25 ===================================================================
  26 --- a/Lib/distutils/sysconfig.py
  27 +++ b/Lib/distutils/sysconfig.py
  28 @@ -79,7 +79,7 @@
  29
  30      if os.name == "posix":
  31          if python_build:
  32 -            buildir = os.path.dirname(sys.executable)
  33 +            buildir = project_base
  34              if plat_specific:
  35                  # python.h is located in the buildir
  36                  inc_dir = buildir