The compilation of Modules/posixmodule.c fails now on Android architecture 'x86' at api level 21, after the above change 0f6d73343d342c106cda2219ebb8a6f0c4bd9b3c:

/opt/android-ndk/toolchains/llvm/prebuilt/linux-x86_64/bin/clang --sysroot=/opt/android-ndk/platforms/android-21/arch-x86 -target i686-none-linux-androideabi -gcc-toolchain /opt/android-ndk/toolchains/x86-4.9/prebuilt/linux-x86_64 -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wno-unused-value -Wno-empty-body -Qunused-arguments -Wno-parentheses-equality   -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Werror=implicit-function-declaration  -IObjects -IInclude -IPython -I. -I./Include -I/opt/android-ndk/platforms/android-21/arch-x86/usr/include   -DPy_BUILD_CORE  -c ./Modules/posixmodule.c -o Modules/posixmodule.o
./Modules/posixmodule.c:1935:5: error: array size is negative
    Py_BUILD_ASSERT(sizeof(unsigned long) >= sizeof(st->st_ino));
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./Include/pymacro.h:43:15: note: expanded from macro 'Py_BUILD_ASSERT'
        (void)Py_BUILD_ASSERT_EXPR(cond);   \
              ^~~~~~~~~~~~~~~~~~~~~~~~~~
./Include/pymacro.h:40:19: note: expanded from macro 'Py_BUILD_ASSERT_EXPR'
    (sizeof(char [1 - 2*!(cond)]) - 1)
                  ^~~~~~~~~~~~~
1 error generated.
make: *** [Makefile:1720: Modules/posixmodule.o] Error 1

The following code:
  #include <stdio.h>
  #include <sys/stat.h>

  int main()
  {
      struct stat *st;

      printf("sizeof(unsigned long): %d - sizeof(st->st_ino): %d\n",
             sizeof(unsigned long), sizeof(st->st_ino));
      return 0;
  }
prints the following result on this same system:
  sizeof(unsigned long): 4 - sizeof(st->st_ino): 8