diff -up bin/zephir.rpm bin/zephir
--- bin/zephir.rpm	2017-10-11 16:28:17.271148783 +0200
+++ bin/zephir	2017-10-11 17:37:30.075485109 +0200
@@ -1,26 +1,8 @@
 #!/bin/sh
-if [ -z "$ZEPHIRDIR" ]; then
-  ZEPHIRDIR="%ZEPHIRDIR%"
-  if [ "$ZEPHIRDIR" = "%""ZEPHIRDIR""%" ]; then
-    if [ -h $0 ]; then
-        REALPATH="`dirname $0`/`readlink $0`"
-        CURDIR=`dirname $REALPATH`
-    else
-        CURDIR=`dirname $0`
-    fi
-    PARENTDIR=`cd $CURDIR/..; pwd`
-
-    if [ -f $PARENTDIR/compiler.php ]; then
-      export ZEPHIRDIR=$PARENTDIR
-    else
-      echo "Environment variable ZEPHIRDIR is not set"
-      exit 1
-    fi
-  fi
-fi
+export ZEPHIRDIR="@DATADIR@/zephir"
 
 if [ ! -z $1 ] && [ ! -z $2 ] && [ ! -z $3 ] && [ "$1" = "-c" ]; then
-    php -c $2 $ZEPHIRDIR/compiler.php ${*:3}
+    @BINDIR@/php -d memory_limit=1G -d extension=zephir_parser.so -c $2 $ZEPHIRDIR/compiler.php ${*:3}
 else
-    php $ZEPHIRDIR/compiler.php $*
+    @BINDIR@/php -d memory_limit=1G -d extension=zephir_parser.so $ZEPHIRDIR/compiler.php $*
 fi