mirror of
https://github.com/coreutils/coreutils.git
synced 2024-12-19 14:57:26 +08:00
dfc5ff02a0
so that automake automatically knows to distribute those files. Use AC_LIBOBJ to ensure that automake automatically knows the names of always-compiled source files. Automake already knows the names of conditionally compiled ones, e.g., due to preexisting uses of AC_LIBOBJ and AC_REPLACE_FUNCS. [This is a start. Many still remain to be fixed...]
56 lines
1.5 KiB
Plaintext
56 lines
1.5 KiB
Plaintext
# c-strtod.m4 serial 6
|
|
|
|
# Copyright (C) 2004, 2005 Free Software Foundation, Inc.
|
|
# This file is free software; the Free Software Foundation
|
|
# gives unlimited permission to copy and/or distribute it,
|
|
# with or without modifications, as long as this notice is preserved.
|
|
|
|
# Written by Paul Eggert.
|
|
|
|
AC_DEFUN([gl_C99_STRTOLD],
|
|
[
|
|
AC_CACHE_CHECK([whether strtold conforms to C99],
|
|
[gl_cv_func_c99_strtold],
|
|
[AC_COMPILE_IFELSE(
|
|
[AC_LANG_PROGRAM(
|
|
[[/* On HP-UX before 11.23, strtold returns a struct instead of
|
|
long double. Reject implementations like that, by requiring
|
|
compatibility with the C99 prototype. */
|
|
#include <stdlib.h>
|
|
static long double (*p) (char const *, char **) = strtold;
|
|
static long double
|
|
test (char const *nptr, char **endptr)
|
|
{
|
|
long double r;
|
|
r = strtold (nptr, endptr);
|
|
return r;
|
|
}]],
|
|
[[return test ("1.0", NULL) != 1 || p ("1.0", NULL) != 1;]])],
|
|
[gl_cv_func_c99_strtold=yes],
|
|
[gl_cv_func_c99_strtold=no])])
|
|
if test $gl_cv_func_c99_strtold = yes; then
|
|
AC_DEFINE([HAVE_C99_STRTOLD], 1, [Define to 1 if strtold conforms to C99.])
|
|
fi
|
|
])
|
|
|
|
AC_DEFUN([gl_C_STRTOD],
|
|
[
|
|
AC_LIBSOURCES([c-strtod.c, c-strtod.h])
|
|
AC_LIBOBJ([c-strtod])
|
|
|
|
dnl Prerequisites of lib/c-strtod.c.
|
|
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
|
|
:
|
|
])
|
|
|
|
AC_DEFUN([gl_C_STRTOLD],
|
|
[
|
|
AC_LIBSOURCES([c-strtold.c, c-strtod.h])
|
|
AC_LIBOBJ([c-strtold])
|
|
|
|
dnl Prerequisites of lib/c-strtold.c.
|
|
AC_REQUIRE([gl_C_STRTOD])
|
|
AC_REQUIRE([gl_C99_STRTOLD])
|
|
:
|
|
])
|