From ec40e17aa2f803ac1fb835d1a2223f8295843df6 Mon Sep 17 00:00:00 2001
From: terik23 <neargye@gmail.com>
Date: Tue, 21 May 2019 21:46:29 +0500
Subject: [PATCH] gcc-9 install fail

---
 .travis.yml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index eaf1909..65d8576 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -74,6 +74,12 @@ matrix:
       env:
         - CXX_COMPILER=clang++ CC_COMPILER=clang
 
+  allow_failures: # gcc-9 yeat unstable.
+    - os: linux
+      compiler: g++
+      env:
+        - CXX_COMPILER=g++-9 CC_COMPILER=gcc-9
+
 install:
   - export CC=${CC_COMPILER}
   - export CXX=${CXX_COMPILER}