Description:
------------
./configure --with-apxs3=/usr/local/apache2/bin/apxs --with-openssl --with-zlib --enable-calendar --enable-bcmath --with-jpeg-dir=/usr/lib --with-tiff-dir=/usr --with-curl=/usr/inlcude/curl --with-inifile --with-flatfile --enable-exif --enable-ftp --with-gd --with-gettext --with-imap --with-mhash --with-ming --with-mysql=/usr/bin --with-mysqli --with-unixODBC --with-pgsql
--with-snmp --enable-soap --enable-sockets --with-xsl --with-pear=/usr/share/pear --with-libxml-dir=/usr
command line to generate error 

Error : libxml2.5.1 or greater is required

Expected result:
----------------
The above line for configuration will give you the error of "libxml2.4.0 is required"
That is beacuse ....of this line

    if test "$LIBXML_VERSION" -ge "2005010"; then
      LIBXML_LIBS=`$XML2_CONFIG --libs`
      LIBXML_INCS=`$XML2_CONFIG --cflags`


The correct line according to calculations are 

    if test "$LIBXML_VERSION" -ge "2005001"; then
      LIBXML_LIBS=`$XML2_CONFIG --libs`
      LIBXML_INCS=`$XML2_CONFIG --cflags`

Actual result:
--------------
Installation must go smoothly