Update 'build-php.sh' script to build without extensions (#221).

Add new 'build-php-with-ext.sh' script that builds PHP with
mysqli and pgsql extensions support. Note that pgsql extension
has a dependency 'libpq5' that has to be installed on end user
machine.

Shipping both 'php-cgi' and 'php-cgi-mysqli-pgsql' PHP binaries
with PHP Desktop releases.

build-php-with-ext.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+# This script builds with PHP extensions enabled: mysqli and pgsql.
+# To build with postgresql support you need to install dependency:
+# >> sudo apt-get install libpq-dev
+# And later when distributing app you have to make sure that 'libpq5'
+# package is installed on end user machine.
+
+# READ ME:
+# - Tested on Ubuntu 14.04 64-bit.
+# - Before running script download sources from http://php.net/downloads.php
+#   and extract them to "build/php*/" directory (create build/ directory).
+
+# Exit immediately if a command exits with a non-zero status.
+set -e
+
+# Print all executed commands to terminal.
+# set -x
+
+root_dir=$(dirname $0)
+cd ${root_dir}/build/php*/
+php_dir=$(pwd)
+echo "Found PHP: ${php_dir}"
+echo "Configure PHP..."
+./configure \
+    --prefix=${php_dir}/dist-install \
+    --exec-prefix=${php_dir}/dist-install-exec-prefix \
+    --with-mysqli \
+    --with-pgsql=/usr/include/postgresql
+echo "Build PHP..."
+make
+echo "Copy php-cgi to build/bin/"
+cp sapi/cgi/php-cgi ../bin/
+echo "OK completed."

build-php.sh

@@ -19,9 +19,7 @@ echo "Found PHP: ${php_dir}"
 echo "Configure PHP..."
 ./configure \
     --prefix=${php_dir}/dist-install \
-    --exec-prefix=${php_dir}/dist-install-exec-prefix \
-    --with-mysqli \
-    --with-pgsql=/usr/include/postgresql
+    --exec-prefix=${php_dir}/dist-install-exec-prefix
 echo "Build PHP..."
 make
 echo "Copy php-cgi to build/bin/"