[issue7658] OS X pythonw.c compile error with 10.4 or earlier deployment target: no spawn.h

[Ronald Oussoren]

Ronald Oussoren <ronaldoussoren at mac.com> added the comment:

BTW. The patch is incorrect in it current form:

* The change to LIPO_32BIT_FLAGS is unconditional, the current values are needed to build on modern system, I guess the proposed new value would be needed for building on 10.4?

* The patch changes pythonw to use execv unconditionally when building a binary that should work on 10.4, as noted in the discussion it is easy enough to build an executable that uses posix_spawnv when it is available and falls back to execv when it is not.  A configure check can be used to detect if posix_spawnv is available at link-time.

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<http://bugs.python.org/issue7658>
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