Nathaniel Smith added the comment:
> Would it be possible to upgrade the "manylinux" compiler (take a more recent
> GCC version)?
No, it's possible :-(. 4.8.2 is the very most modern version of GCC you can use
if you want to build binaries to run on CentOS/RHEL 5. (And "binaries should
run on CentOS/RHEL 5" is the definition of manylinux1.)
I am a bit confused that gcc 4.8.2 is having trouble with cpython 3.6.0b2,
though -- supposedly anything newer than gcc 4.3 should be fine with it. And
yet. One possibility is that something funny is going on inside the build
scripts Robin's using and that Python's ./configure is somehow finding and
using the platform compiler (gcc 4.1) even though the first "gcc" in $PATH is
4.8.2, which would make this a false alarm.
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