Log Message:
Update to 1.3.6

Upstream changes:
2019-12-05, version 1.3.6
=========================

Other changes
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* Fixed cross-compilation (broken in 1.3.5).

2019-11-17, version 1.3.5
=========================

Implementation changes
----------------------

* Fix bug in scale_float() throwing underflow_exception.

Other changes
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* Support builds on:
  - 64-bit MinGW
  - Elbrus 2000
  - Risc-V64
  - MIPS release 6