acinclude.m4: CHECK_MATH_DECL_AND_LINKAGE for hypot, hypotf, hypotl, atan2f, atan2l.
* acinclude.m4: CHECK_MATH_DECL_AND_LINKAGE for hypot, hypotf,
hypotl, atan2f, atan2l. Remove from REPLACE_MATHFUNCS list.
* aclocal.m4: Regenerate.
* config.h.in: Likewise.
* configure: Likewise.
* libmath/Makefile.am (EXTRA_LONG_DOUBLE_yes): Remove hypotl.c
(EXTRA_DIST): Remove hypot.c hypotf.c.
* libmath/Makefile.am: Regenerate.
* libmath/hypotf.c: Remove.
* libmath/hypot.c: Likewise.
* libmath/hypotl.c: Likewise.
* libmath/stubs.c: The macros seen here are HAVE_xxx, not
_GLIBCPP_HAVE_xxx. Add long double versions.
From-SVN: r44334