This adds 'frexpl' as a separate module from 'mathl' (since users of
frexpl often don't need trigonometric functions).
2007-03-22 Bruno Haible <[EMAIL PROTECTED]>
* modules/frexpl: New file.
* m4/frexpl.m4: New file.
* modules/math (Makefile.am): Also substitute GNULIB_FREXPL into math.h.
* lib/math_.h (frexpl): Test GNULIB_FREXPL instead of GNULIB_MATHL.
* m4/math_h.m4 (gl_MATH_H_DEFAULTS): Initialize GNULIB_FREXPL.
* modules/mathl (Files): Remove lib/frexpl.c, lib/frexp.c.
(Depends-on): Add frexpl. Remove isnanl-nolibm.
* m4/mathl.m4 (gl_FUNC_LONG_DOUBLE_MATH): Don't test for frexpl.
============================== modules/frexpl ===============================
Description:
frexpl() function: split a 'long double' into its constituents.
Files:
lib/frexpl.c
lib/frexp.c
m4/frexpl.m4
Depends-on:
math
isnanl-nolibm
configure.ac:
gl_FUNC_FREXPL
gl_MATH_MODULE_INDICATOR([frexpl])
Makefile.am:
Include:
<math.h>
License:
LGPL
Maintainer:
Bruno Haible, Paolo Bonzini
=============================== m4/frexpl.m4 ================================
# frexpl.m4 serial 1
dnl Copyright (C) 2007 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_FREXPL],
[
AC_REQUIRE([gl_MATH_H_DEFAULTS])
FREXPL_LIBM=
AC_CACHE_CHECK([whether frexpl() can be used without linking with libm],
[gl_cv_func_frexpl_no_libm],
[
AC_TRY_LINK([#include <math.h>
long double x;],
[int e; return frexpl (x, &e) > 0;],
[gl_cv_func_frexpl_no_libm=yes],
[gl_cv_func_frexpl_no_libm=no])
])
if test $gl_cv_func_frexpl_no_libm = no; then
AC_CACHE_CHECK([whether frexpl() can be used with libm],
[gl_cv_func_frexpl_in_libm],
[
save_LIBS="$LIBS"
LIBS="$LIBS -lm"
AC_TRY_LINK([#include <math.h>
long double x;],
[int e; return frexpl (x, &e) > 0;],
[gl_cv_func_frexpl_in_libm=yes],
[gl_cv_func_frexpl_in_libm=no])
LIBS="$save_LIBS"
])
if test $gl_cv_func_frexpl_in_libm = yes; then
FREXPL_LIBM=-lm
fi
fi
if test $gl_cv_func_frexpl_no_libm = yes \
|| test $gl_cv_func_frexpl_in_libm = yes; then
AC_DEFINE([HAVE_FREXPL], 1,
[Define if the frexpl() function is available.])
dnl Also check whether it's declared.
dnl MacOS X 10.3 has frexpl() in libc but doesn't declare it in <math.h>.
AC_CHECK_DECL([frexpl], , [HAVE_DECL_FREXPL=0], [#include <math.h>])
else
AC_LIBOBJ([frexpl])
fi
])
=============================================================================
*** lib/math_.h 22 Mar 2007 03:59:38 -0000 1.4
--- lib/math_.h 23 Mar 2007 01:11:30 -0000
***************
*** 128,141 ****
floorl (x))
#endif
! #if @GNULIB_MATHL@ || [EMAIL PROTECTED]@
extern long double frexpl (long double x, int *exp);
#endif
! #if [EMAIL PROTECTED]@ && defined GNULIB_POSIXCHECK
# undef frexpl
# define frexpl(x,e) \
(GL_LINK_WARNING ("frexpl is unportable - " \
! "use gnulib module mathl for portability"), \
frexpl (x, e))
#endif
--- 128,148 ----
floorl (x))
#endif
! /* Write x as
! x = mantissa * 2^exp
! where
! If x finite and nonzero: 0.5 <= |mantissa| < 1.0.
! If x is zero: mantissa = x, exp = 0.
! If x is infinite or NaN: mantissa = x, exp unspecified.
! Store exp and return mantissa. */
! #if @GNULIB_FREXPL@ || [EMAIL PROTECTED]@
extern long double frexpl (long double x, int *exp);
#endif
! #if [EMAIL PROTECTED]@ || defined GNULIB_POSIXCHECK
# undef frexpl
# define frexpl(x,e) \
(GL_LINK_WARNING ("frexpl is unportable - " \
! "use gnulib module frexpl for portability"), \
frexpl (x, e))
#endif
*** m4/math_h.m4 22 Mar 2007 03:59:38 -0000 1.3
--- m4/math_h.m4 23 Mar 2007 01:11:30 -0000
***************
*** 21,28 ****
AC_DEFUN([gl_MATH_H_DEFAULTS],
[
! GNULIB_FREXP=0; AC_SUBST([GNULIB_FREXP])
! GNULIB_MATHL=0; AC_SUBST([GNULIB_MATHL])
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_DECL_ACOSL=1; AC_SUBST([HAVE_DECL_ACOSL])
HAVE_DECL_ASINL=1; AC_SUBST([HAVE_DECL_ASINL])
--- 21,29 ----
AC_DEFUN([gl_MATH_H_DEFAULTS],
[
! GNULIB_FREXP=0; AC_SUBST([GNULIB_FREXP])
! GNULIB_FREXPL=0; AC_SUBST([GNULIB_FREXPL])
! GNULIB_MATHL=0; AC_SUBST([GNULIB_MATHL])
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_DECL_ACOSL=1; AC_SUBST([HAVE_DECL_ACOSL])
HAVE_DECL_ASINL=1; AC_SUBST([HAVE_DECL_ASINL])
*** m4/mathl.m4 23 Jan 2005 08:06:57 -0000 1.2
--- m4/mathl.m4 23 Mar 2007 01:11:30 -0000
***************
*** 1,5 ****
! # mathl.m4 serial 2
! dnl Copyright (c) 2003 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
--- 1,5 ----
! # mathl.m4 serial 3
! dnl Copyright (c) 2003, 2007 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
***************
*** 7,13 ****
AC_DEFUN([gl_FUNC_LONG_DOUBLE_MATH], [
AC_CHECK_LIB(m, atan)
! AC_REPLACE_FUNCS(floorl ceill sqrtl frexpl ldexpl asinl acosl atanl \
logl expl tanl sinl cosl)
])
--- 7,13 ----
AC_DEFUN([gl_FUNC_LONG_DOUBLE_MATH], [
AC_CHECK_LIB(m, atan)
! AC_REPLACE_FUNCS(floorl ceill sqrtl ldexpl asinl acosl atanl \
logl expl tanl sinl cosl)
])
*** modules/math 22 Mar 2007 03:59:38 -0000 1.3
--- modules/math 23 Mar 2007 01:11:30 -0000
***************
*** 22,27 ****
--- 22,28 ----
{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
sed -e 's|@''ABSOLUTE_MATH_H''@|$(ABSOLUTE_MATH_H)|g' \
-e 's|@''GNULIB_FREXP''@|$(GNULIB_FREXP)|g' \
+ -e 's|@''GNULIB_FREXPL''@|$(GNULIB_FREXPL)|g' \
-e 's|@''GNULIB_MATHL''@|$(GNULIB_MATHL)|g' \
-e 's|@''HAVE_DECL_ACOSL''@|$(HAVE_DECL_ACOSL)|g' \
-e 's|@''HAVE_DECL_ASINL''@|$(HAVE_DECL_ASINL)|g' \
*** modules/mathl 22 Mar 2007 12:24:07 -0000 1.6
--- modules/mathl 23 Mar 2007 01:11:30 -0000
***************
*** 9,16 ****
lib/cosl.c
lib/expl.c
lib/floorl.c
- lib/frexpl.c
- lib/frexp.c
lib/ldexpl.c
lib/logl.c
lib/sincosl.c
--- 9,14 ----
***************
*** 23,29 ****
Depends-on:
math
! isnanl-nolibm
configure.ac:
gl_FUNC_LONG_DOUBLE_MATH
--- 21,27 ----
Depends-on:
math
! frexpl
configure.ac:
gl_FUNC_LONG_DOUBLE_MATH
