2004-08-29  Steven G. Kargl  <kargls@comcast.net>
	Paul Brook  <paul@codesourcery.com>

	* check.c (gfc_check_besn, gfc_check_g77_math1): New functions.
	* f95-lang.c (DO_DEFINE_MATH_BUILTIN): Define.
	(DEFINE_MATH_BUILTIN, DEFINE_MATH_BUILTIN_C): Use it.
	(build_builtin_fntypes): New function.
	(gfc_init_builtin_functions): Use it.
	* gfortran.h (enum gfc_generic_isym_id): Add GFC_ISYM_{J,Y}{0,1,N}
	and GFC_ISYM_ERF{,C}.
	(gfc_c_int_kind): Declare.
	* intrinsic.c (add_functions): Add [d]bes* and [d]erf*.
	* intrinsic.h (gfc_check_besn, gfc_check_g77_math1, gfc_resolve_besn,
	gfc_resolve_g77_math1): Add prototypes.
	* resolve.c (gfc_resolve_besn, gfc_resolve_g77_math1): New functions.
	* mathbuiltins.def: Add comment.  Change third argument.  Use
	DEFINE_MATH_BUILTIN_C.  Add bessel and error functions.
	* trans-intrinsic.c (BUILT_IN_FUNCTION): Define.
	(DEFINE_MATH_BUILTIN, DEFINE_MATH_BUILTIN_C): Use it.
	* trans-types.c (gfc_c_int_kind): Declare.
	(gfc_init_kinds): Set it.
testsuite/
	* gfortran.dg/g77/README: Update.
	* gfortran.dg/g77/erfc.f: Copy from g77.f-torture.
	* gfortran.dg/g77/intrinsic-unix-bessel.f: Ditto.
	* gfortran.dg/g77/intrinsic-unix-erf.f: Ditto.
libgfortran/
	* intrinsics/bessel.c: New file.
	* intrinsics/erf.c: New file.
	* Makefie.am: Add intrinsics/bessel.c and intrinsics/erf.c.
	* configure.ac: Test for C99 Bessel and Error functions.
	* Makefile.in: Regenerate.
	* config.h.in: Regenerate.
	* configure: Regenerate.

Co-Authored-By: Paul Brook <paul@codesourcery.com>

From-SVN: r86727