Bump APCu to 5.1.19 on Travis.

.travis.yml

@@ -142,23 +142,6 @@ before_install:
       }
       export -f tpecl
 
-      install_apcu_dev () {
-          local ref=$1
-          local INI=$2
-
-          wget https://github.com/krakjoe/apcu/archive/${ref}.zip
-          unzip ${ref}.zip
-          cd apcu-${ref}
-          phpize
-          ./configure
-          make
-          mv modules/apcu.so $(php -r "echo ini_get('extension_dir');")
-          echo 'extension = apcu.so' >> $INI
-          cd ..
-          rm -rf apcu-${ref} ${ref}.zip
-      }
-      export -f install_apcu_dev
-
     - |
       # Install sigchild-enabled PHP to test the Process component on the lowest PHP matrix line
       if [[ ! $deps && $TRAVIS_PHP_VERSION = ${MIN_PHP%.*} && ! -d php-$MIN_PHP/sapi ]]; then
@@ -200,11 +183,11 @@ before_install:
               [[ -e $ext_cache ]] || (tfold ext.symfony_debug "cd src/Symfony/Component/Debug/Resources/ext && phpize && ./configure && make && mv modules/symfony_debug.so $ext_cache && phpize --clean")
               echo extension = $ext_cache >> $INI
           elif [[ $PHP = 7.* ]]; then
-              tfold ext.apcu tpecl apcu-5.1.17 apcu.so $INI
+              tfold ext.apcu tpecl apcu-5.1.19 apcu.so $INI
               tfold ext.mongodb tpecl mongodb-1.6.0 mongodb.so $INI
           elif [[ $PHP = nightly ]]; then
               tfold ext.memcached tpecl memcached-3.1.5 memcached.so $INI
-              tfold ext.apcu install_apcu_dev 9c36db45100d4d27ec33072f4be90f1f5a0108b7 $INI
+              tfold ext.apcu tpecl apcu-5.1.19 apcu.so $INI
           fi
       done