Fix for travis CI

.travis/before_install.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -e
+
 sudo add-apt-repository ppa:kxstudio-debian/kxstudio -y
 sudo add-apt-repository ppa:kxstudio-debian/mingw -y
 sudo add-apt-repository ppa:kxstudio-debian/toolchain -y

.travis/install.sh

@@ -30,12 +30,12 @@ sudo apt-get install -y \
     wine-rt-dev
 
 mkdir /tmp/osx-macports-pkgs
-pushd /tmp/osx-macports-pkgs
+cd /tmp/osx-macports-pkgs
 wget https://launchpad.net/~kxstudio-team/+archive/ubuntu/builds/+files/apple-macports-flac_1.2.1-1_all.deb
 wget https://launchpad.net/~kxstudio-team/+archive/ubuntu/builds/+files/apple-macports-libiconv_1.14-0_all.deb
 wget https://launchpad.net/~kxstudio-team/+archive/ubuntu/builds/+files/apple-macports-liblo_0.26-1_all.deb
 wget https://launchpad.net/~kxstudio-team/+archive/ubuntu/builds/+files/apple-macports-libogg_1.3.0-1_all.deb
 wget https://launchpad.net/~kxstudio-team/+archive/ubuntu/builds/+files/apple-macports-libsndfile_1.0.25-0_all.deb
 wget https://launchpad.net/~kxstudio-team/+archive/ubuntu/builds/+files/apple-macports-libvorbis_1.3.3-0_all.deb
-popd
+cd ~
 rm -r /tmp/osx-macports-pkgs

.travis/script-linux.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -e
+
 # Preparation
 _FLAGS="-I/opt/kxstudio/include -Werror"
 export CFLAGS="${_FLAGS}"