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	* configure.ac: Adjust the ppl and cloog configure to work as
	documented.  Disable cloog if ppl was disabled.  Omit the version
	checks if they were disabled.
	* configure: Re-generate.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@153055 138bc75d-0d04-0410-961f-82ee72b054a4