epiphany tools fail to build on 4.11

[Joel Sherrill]

Looks like an incorrect hash but could be something more subtle.

script: 80: build_top=$(pwd)
script: 81: gcc_source=epiphany-gcc-f7051762470c42ce7f01baa7edeb113d51c7dd72
script: 82: source_dir_gcc=${gcc_source}
source setup: epiphany-rtems4.11-gcc-4.9.1-newlib-ef23a12ff8f840cc571e47870cd5f4ad6bca4553-x86_64-linux-gnu-1: source gcc -q -n ${gcc_source}
making dir: /home/joel/rtems-4.11-work/rtems-source-builder/rtems/sources
download: ​https://github.com/adapteva/epiphany-gcc/archive/f7051762470c42ce7f01baa7edeb113d51c7dd72.zip -> sources/f7051762470c42ce7f01baa7edeb113d51c7dd72.zip
download: ​https://github.com/adapteva/epiphany-gcc/archive/f7051762470c42ce7f01baa7edeb113d51c7dd72.zip -> sources/f7051762470c42ce7f01baa7edeb113d51c7dd72.zip

redirect: ​https://codeload.github.com/adapteva/epiphany-gcc/zip/f7051762470c42ce7f01baa7edeb113d51c7dd72
redirect: ​https://codeload.github.com/adapteva/epiphany-gcc/zip/f7051762470c42ce7f01baa7edeb113d51c7dd72

checksums: f7051762470c42ce7f01baa7edeb113d51c7dd72.zip: e089e67261c96c746e685bba018581f0 => c43c2e631418e932e2048607b694e99a
warning: checksum error: f7051762470c42ce7f01baa7edeb113d51c7dd72.zip
error: checksum failure file: sources/f7051762470c42ce7f01baa7edeb113d51c7dd72.zip

See error report: rsb-report-epiphany-rtems4.11-gcc-4.9.1-newlib-ef23a12ff8f840cc571e47870cd5f4ad6bca4553-x86_64-linux-gnu-1.txt

Build Set: Time 0:08:36.503865

[Chris Johns]

I cannot fix this as the zip I downloaded is corrupt. The RSB and the ZIP I downloaded with a browser using the same URL from the RSB configuration file downloaded have the same SHA512 hash. Running unzip -t on the file gives:

$ unzip -t sources/epiphany-gcc-f7051762470c42ce7f01baa7edeb113d51c7dd72.zip                                                                                                                                                                                                                                                                                                   
Archive:  sources/epiphany-gcc-f7051762470c42ce7f01baa7edeb113d51c7dd72.zip
unzip: Invalid central directory signature