--- /dev/null
+#!/bin/sh
+# inter-dependencies checker.
+
+with_mysqlnd=mysqlnd
+
+dep_spl="pcre simplexml"
+dep_session="spl $dep_spl"
+dep_filter='pcre'
+dep_eaccelerator='session'
+dep_mysql="$with_mysqlnd"
+dep_mysqli="$dep_spl spl $with_mysqlnd"
+dep_pdo="$dep_spl spl"
+dep_pdo_sqlite="$dep_pdo pdo"
+dep_pdo_pgsql="$dep_pdo pdo"
+dep_pdo_oci="$dep_pdo pdo"
+dep_pdo_odbc="$dep_pdo pdo"
+dep_pdo_firebird="$dep_pdo pdo"
+dep_pdo_dblib="$dep_pdo pdo"
+dep_pdo_mysql="$dep_pdo pdo $with_mysqlnd"
+dep_simplexml="$dep_spl spl"
+dep_imap="pcre"
+dep_phar="$dep_spl spl"
+dep_sqlite="$dep_pdo pdo"
+dep_fileinfo="pcre"
+dep_wddx='xml'
+dep_xmlreader='dom'
+dep_xmlrpc='xml'
+dep_xsl='dom'
+dep_snmp="$dep_spl spl snmp"
+
+php=${PHP:-$(php-config --php-binary)}
+ext_dir=${EXTENSION_DIR:-$(php-config --extension-dir)}
+conf_dir=${CONFIG_DIR:-$(php-config --sysconfdir)/conf.d $(php-config --sysconfdir)/cli.d}
+tmpini=$(mktemp)
+
+# poldek --sn ac-ready -u php-*
+for ext in $ext_dir/*.so; do
+ [ -f $ext ] || continue
+ ext=${ext##*/}; ext=${ext%.so}
+
+ deps=$(eval echo \$dep_$ext)
+ # add ext itself, if already not in list (spl case)
+ [[ $deps = *\ $ext\ * ]] || deps="$deps $ext"
+
+ echo -n "$ext (deps: ${deps# })..."
+
+ grep -rlE '^extension=('$(echo "${deps# }" | tr ' ' '|')').so$' $conf_dir | LC_CTYPE=C LC_ALL= sort | xargs cat > $tmpini
+ $php -n -d extension_dir=$ext_dir -c $tmpini -r "exit(extension_loaded('${ext}') ? 0 : 1);"
+ rc=$?
+ if [ $rc = 0 ]; then
+ echo OK
+ else
+ echo FAIL
+ echo "Failed config was:"
+ cat $tmpini
+ fi
+done
+rm -f $t