From 742442d64a9d941a157e22e984bd1c94c26cd2ce Mon Sep 17 00:00:00 2001
From: karliss <karlis3p70l1ij@gmail.com>
Date: Thu, 2 Apr 2020 20:55:24 +0300
Subject: [PATCH] Install ninja from backports on Ubuntu 16.04. (#2125)

---
 .github/workflows/ccpp.yml | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ccpp.yml b/.github/workflows/ccpp.yml
index 7d7373d31..19ea848f3 100644
--- a/.github/workflows/ccpp.yml
+++ b/.github/workflows/ccpp.yml
@@ -26,7 +26,14 @@ jobs:
         submodules: true # 'recursive' 'true' or 'false'
     - name: apt dependencies
       if: contains(matrix.os, 'ubuntu')
-      run: sudo apt-get install ninja-build libgraphviz-dev
+      run: |
+        sudo apt-get install libgraphviz-dev
+        if [[ "${{ matrix.os }}" = "ubuntu-16.04" ]]
+        then
+          sudo apt-get install ninja-build/xenial-backports
+        else
+          sudo apt-get install ninja-build
+        fi
     - name: homebrew dependencies
       if: contains(matrix.os, 'macos')
       run: |