[issue19521] Parallel build race condition on AIX since python-2.7

[Stefan Krah]

Stefan Krah <stefan at bytereef.org> added the comment:

Okay, thanks.  The -G option is of course attractive for Linux projects
because it requires minimal changes in the build machinery.

I've added support for libmpdec/libmpdec++ (next release) for AIX-style
shared libraries (shr.o inside libmpdec.a).  The AIX linker has a certain
elegance, but it requires something like 150 lines of code changes and
conditionals inside the Makefiles.

I can confirm that -G is substantially slower, so I'm going to commit this
patch soon.

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