Replaced before script with addons.

diff --git a/.travis.yml b/.travis.yml
index 8ec4fe6efff71a3c31ddb00e869012414d916dc0..1df1917dbf667095db29c91929855125e798e967 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,15 +2,15 @@ language: c
 
 sudo: false
 
+addons:
+  apt:
+    packages:
+    - autoconf
+
 compiler:
   - clang
   - gcc
 
-before_script:
-  - sudo add-apt-repository ppa:dns/gnu -y
-  - sudo apt-get update -q
-  - sudo apt-get install --only-upgrade autoconf
-
 script:
     - export OMP_NUM_THREADS=1
     - export CFLAGS="-Wno-deprecated-declarations -Wdeclaration-after-statement -Wno-error=unused-variable"