[issue22359] Remove incorrect uses of recursive make

[koobs]

koobs added the comment:

We've (FreeBSD) seen and received several random and intermittent reports of failures during this stage of the build for all versions of Python, resulting in errors such as, among others:

Parser/pgen.o: file not recognized: File truncated
*** [Parser/pgen] Error code 1

pgenmain.c:(.text+0x258): undefined reference to `_Py_pgen'
*** [Parser/pgen] Error code 1
1 error
*** [Include/graminit.h] Error code 2

See: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200622

Given the existing patch breaks cross-builds, is there an alternative or safer way to make this section of the build more robust in order to make progress?

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versions: +Python 2.7, Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22359>
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