* libmath/Makefile.am (EXTRA_LONG_DOUBLE_yes): Remove ccosl,
	cexpl, clog10l, csinhl, ctanhl, ctanl.
	(EXTRA_DIST): Remove ccos, ccosf, csin, csinf, ccosh, ccoshf,
	csing, csinhf, clog10, clog10f, ctan, ctanf, ctanh, ctanhf.
	* libmath/Makefile.in: Regenarate.
	* libmath/ccos.c: Remove.
	* libmath/ccosf.c: Likewise.
	* libmath/ccosl.c: Likewise.
	* libmath/csin.c: Likewise.
	* libmath/csinf.c: Likewise.
	* libmath/csinl.c: Likewise.
	* libmath/ctan.c: Likewise.
	* libmath/ctanf.c: Likewise.
	* libmath/ctanl.c: Likewise.
	* libmath/ccosh.c: Likewise.
	* libmath/ccoshf.c: Likewise.
	* libmath/ccoshl.c: Likewise.
	* libmath/csinh.c: Likewise.
	* libmath/csinhf.c: Likewise.
	* libmath/csinhl.c: Likewise.
	* libmath/ctanh.c: Likewise.
	* libmath/ctanhf.c: Likewise.
	* libmath/ctanhl.c: Likewise.
	* libmath/cexp.c: Likewise.
	* libmath/cexpf.c: Likewise.
	* libmath/cexpl.c: Likewise.
	* libmath/clog10.c: Likewise.
	* libmath/clog10f.c: Likewise.
	* libmath/clog10l.c: Likewise.
	* libmath/complex-stub.h: Remove forward declaration of functions
	mentioned above.

	* include/bits/std_complex.h(tan, tanh): Define primary templates.
	(complex<>): Remove friend declarations for tan<> and tanh<>.
	* src/complex.cc(tan, tanh): Remove specializations.

	* acinclude.m4: Remove check for ccos, ccosf, ccosl, ccosh,
	ccoshf, ccoshl,	csin, csinf, csinl, csinh, csinhf, csinhl, cexp,
	cexpf, cexpl, ctan, ctanf, ctanl, ctanh, ctanhf, ctanhl.
	* aclocal.m4: Regenarate.
	* configure: Regenarate.

From-SVN: r38128