Replaced before script with addons.
diff --git a/.travis.yml b/.travis.yml
index 8ec4fe6..1df1917 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,15 +2,15 @@
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"