re PR libfortran/32611 (Print sign of negative zero)

re PR libfortran/32611 (Print sign of negative zero)

2007-07-15  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
	    Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

	PR fortran/32611
	* gfortran.h (gfc_option_t): Add flag_sign_zero field.
	* lang.opt (-fsign-zero): New option.
	* trans.h: Rename gfor_fndecl_set_std into gfor_fndecl_set_options.
	* trans-decl.c (gfc_build_builtin_function_decls): Build the function
	declaration to pass an array containing the options to be used by the
	runtime library. (gfc_generate_function_code): Build an array that
	contains option values to be passed to the runtime library and the call
	to the function.
	* options.c (gfc_init_options): Initialize the flag_sign_zero field.
	(gfc_handle_option): Handle the -fsign-zero option.

Co-Authored-By: Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
From-SVN: r126655