Build libpng/libjpeg/libwebp deps.

.travis.yml

@@ -4,5 +4,5 @@ node_js:
   - "0.8"
 
 before_install:
-  - sudo apt-get update
-  - sudo apt-get install libjpeg8 libjpeg8-dev libpng-dev libwebp-dev
+  - ./test/build-static.sh
+

test/build-static.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+set -e
+export CXXFLAGS="$CXXFLAGS -fPIC"
+export CFLAGS="$CFLAGS -fPIC"
+
+build_dir=$(pwd)
+
+wget 'http://prdownloads.sourceforge.net/libpng/libpng-1.2.51.tar.gz?download' -O /tmp/libpng-1.2.51.tar.gz
+wget 'http://prdownloads.sourceforge.net/libpng/libpng-1.2.51.tar.gz.asc?download' -O /tmp/libpng-1.2.51.tar.gz.asc
+gpg --keyserver pgp.mit.edu --recv-keys A16C640F
+gpg --verify /tmp/libpng-1.2.51.tar.gz.asc
+
+tar xzf /tmp/libpng-1.2.51.tar.gz -C /tmp/
+cd /tmp/libpng-1.2.51
+./configure --enable-shared --disable-shared --disable-dependency-tracking
+make
+sudo make install
+
+wget 'http://prdownloads.sourceforge.net/libjpeg-turbo/libjpeg-turbo-1.3.1.tar.gz?download' -O /tmp/libjpeg-turbo-1.3.1.tar.gz
+tar xzf /tmp/libjpeg-turbo-1.3.1.tar.gz -C /tmp/
+cd /tmp/libjpeg-turbo-1.3.1
+./configure --enable-shared --disable-shared --disable-dependency-tracking
+make
+sudo make install
+
+wget 'https://webp.googlecode.com/files/libwebp-0.4.0.tar.gz' -O /tmp/libwebp-0.4.0.tar.gz
+tar xzf /tmp/libwebp-0.4.0.tar.gz -C /tmp/
+cd /tmp/libwebp-0.4.0
+./configure --enable-shared --disable-shared --disable-dependency-tracking
+make
+sudo make install
+
+cd $build_dir