Failing tests on new Synology DS1821+ server

[Torbjörn Granlund]

Stephen Watt <smwatt at gmail.com> writes:

  * GCC version: gcc version 4.9.3 20150311 (prerelease) (crosstool-NG 1.20.0)

That is a non-release of an awfully old compiler.  I bet that's where
the bug is.

  PASS: t-powm_ui
  FAIL: t-pow
  PASS: t-div_2exp
  FAIL: t-root

GMP passes its own test suite unless the compilation environment is
buggy.  (That is not to say that GMP does not have any bug.)

-- 
Torbjörn
Please encrypt, key id 0xC8601622