Most Linux systems no longer require the preinstall script

package.json

@@ -47,7 +47,7 @@
     "vips"
   ],
   "dependencies": {
-    "bluebird": "^3.1.5",
+    "bluebird": "^3.2.2",
     "color": "^0.11.1",
     "nan": "^2.2.0",
     "semver": "^5.1.0",
@@ -61,7 +61,7 @@
     "icc": "^0.0.2",
     "istanbul": "^0.4.2",
     "mocha": "^2.4.5",
-    "mocha-jshint": "^2.3.0",
+    "mocha-jshint": "^2.3.1",
     "node-cpplint": "^0.4.0",
     "rimraf": "^2.5.1",
     "bufferutil": "^1.2.1"

preinstall.sh

@@ -1,7 +1,14 @@
 #!/bin/sh
 
-# Ensures libvips is installed and attempts to install it if not
-# Currently supports:
+# This script is no longer required on most
+# 64-bit Linux systems when using sharp v0.12.0+
+
+# See http://sharp.dimens.io/page/install#linux
+
+# If you really need this script, it will attempt to
+# globally install libvips if not already available.
+
+# Supports:
 # * Debian Linux
 #   * Debian 7, 8
 #   * Ubuntu 12.04, 14.04, 14.10, 15.04, 15.10
@@ -119,6 +126,11 @@ if [ "$(id -u)" -ne "0" ]; then
   exit 1
 fi
 
+# Deprecation warning
+if [ "$(arch)" == "x86_64" ]; then
+  echo "This script is no longer required on most 64-bit Linux systems when using sharp v0.12.0+"
+fi
+
 # OS-specific installations of libopenslide follows
 # Either openslide does not exist, or vips is installed without openslide support
 if [ $enable_openslide -eq 1 ] && [ -z $vips_with_openslide ] && [ $openslide_exists -eq 0 ]; then