ENH: added parameter to use periodic x-coordinates
DOC: Updated from numeric doc to indicate where axis can also be a tuple of ints, i.e. axes, over which to perform the given operation
BLD: try linking a file if compile long double repr detection fails

When compiler uses link time optimization it will not emit the binary
representation of the long double during linking. This prevents building
numpy with -flto.
To avoid this try linking the object when the compile detection failed.
With this change numpy can be built with link time optimization with 4 worker
processes using following command:

CC='gcc -fno-fat-lto-objects -flto=4 -fuse-linker-plugin -O3' \
LDSHARED='gcc -fno-fat-lto-objects -flto=4 -fuse-linker-plugin -shared
-O3' AR=gcc-ar \
python setup.py build_ext

See also:
https://www.mail-archive.com/numpy-discussion@scipy.org/msg45535.html

Should also work with icc's -ipo switch (probably closes gh-4992)
Merge pull request #5190 from juliantaylor/lto-support

BLD: try linking a file if compile long double repr detection fails
DOC: Update axis documentation for tuple of ints to be consistent between functions
Merge branch 'master' of https://github.com/numpy/numpy into interp_with_period
ENH: added parameter to use periodic x-coordinates
Merge pull request #5117 from saullocastro/interp_with_period

ENH: added parameter to use periodic x-coordinates
ENH: Add keepdims to linalg.norm
MAINT: Stop repeatedly running duplicate tests.
    These three tests don't make use of the infrastructre in
    _TestNorm. This means they are identical tests when run
    as part of TestNorm(Double,Single,Int64). Once is enough.
Merge pull request #5196 from ewmoore/norm_keepdims

Add keepdims to linalg.norm
Merge pull request #5146 from cimarronm/fromnumeric_axis_tuples_doc

Updated function docstrings for tuples in axis