PHP team has started the deprecation of php 5.3. Please update this package to a newer target. php5-4 is the minimum, php5-5 is recommended. Multiples are preferred if possible.
Split dev-php/ming-php into its own ebuild and removed building the php extension from media-libs/ming. This was necessary as the extension needed to have libming built ahead of time and did not fit in well with the multiple PHP_TARGETS build system.