view lib/dummy.c @ 16040:b8acd8099b25

New module 'fmaf'. * lib/math.in.h (fmaf): New declaration. * lib/fmaf.c: New file. * m4/fmaf.m4: New file. * m4/math_h.m4 (gl_MATH_H): Test whethern fmaf is declared. (gl_MATH_H_DEFAULTS): Initialize GNULIB_FMAF, HAVE_FMAF, REPLACE_FMAF. * modules/math (Makefile.am): Substitute GNULIB_FMAF, HAVE_FMAF, REPLACE_FMAF. * modules/fmaf: New file. * doc/posix-functions/fmaf.texi: Mention the new module and the various bugs.
author Bruno Haible <bruno@clisp.org>
date Mon, 17 Oct 2011 23:51:21 +0200
parents 97fc9a21a8fb
children 8250f2777afc
line wrap: on
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/* A dummy file, to prevent empty libraries from breaking builds.
   Copyright (C) 2004, 2007, 2009-2011 Free Software Foundation, Inc.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

/* Some systems, reportedly OpenBSD and Mac OS X, refuse to create
   libraries without any object files.  You might get an error like:

   > ar cru .libs/libgl.a
   > ar: no archive members specified

   Compiling this file, and adding its object file to the library, will
   prevent the library from being empty.  */

/* Some systems, such as Solaris with cc 5.0, refuse to work with libraries
   that don't export any symbol.  You might get an error like:

   > cc ... libgnu.a
   > ild: (bad file) garbled symbol table in archive ../gllib/libgnu.a

   Compiling this file, and adding its object file to the library, will
   prevent the library from exporting no symbols.  */

#ifdef __sun
/* This declaration ensures that the library will export at least 1 symbol.  */
int gl_dummy_symbol;
#else
/* This declaration is solely to ensure that after preprocessing
   this file is never empty.  */
typedef int dummy;
#endif