acinclude.m4 ([GLIBCXX_CHECK_STDIO_MACROS]): New, checks for common values of EOF, SEEK_CUR, SEEK_END.

2008-08-06  Paolo Carlini  <paolo.carlini@oracle.com>

	* acinclude.m4 ([GLIBCXX_CHECK_STDIO_MACROS]): New, checks for
	common values of EOF, SEEK_CUR, SEEK_END.
	* configure.ac: Use it.
	* include/bits/ios_base.h: Likewise.
	* include/bits/char_traits.h: Likewise.
	* config/locale/gnu/ctype_members.cc: Include <cstdio>.
	* config/locale/generic/ctype_members.cc: Likewise.
	* testsuite/27_io/ios_base/cons/assign_neg.cc: Adjust dg-error lines.
	* testsuite/27_io/ios_base/cons/copy_neg.cc: Likewise.
	* configure: Regenerate.
	* config.h.in: Likewise.

From-SVN: r138829