mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-04 08:47:11 +00:00
6f9a2a8f29
These are neccessary because Android's printf is missing basic format modifiers such as t. * admin/merge-gnulib (GNULIB_MODULES): Add printf-posix and vasprintf-posix. Update from gnulib. * configure.ac (CFLAGS): Add -DHAVE_CONFIG_H.
39 lines
1.2 KiB
Plaintext
39 lines
1.2 KiB
Plaintext
# printf-frexp.m4 serial 5
|
|
dnl Copyright (C) 2007, 2009-2023 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.
|
|
|
|
dnl Check how to define printf_frexp() without linking with libm.
|
|
|
|
AC_DEFUN([gl_FUNC_PRINTF_FREXP],
|
|
[
|
|
AC_REQUIRE([gl_CHECK_FREXP_NO_LIBM])
|
|
if test $gl_cv_func_frexp_no_libm = yes; then
|
|
gl_FUNC_FREXP_WORKS
|
|
case "$gl_cv_func_frexp_works" in
|
|
*yes)
|
|
AC_DEFINE([HAVE_FREXP_IN_LIBC], [1],
|
|
[Define if the frexp function is available in libc.])
|
|
;;
|
|
esac
|
|
fi
|
|
|
|
AC_CACHE_CHECK([whether ldexp can be used without linking with libm],
|
|
[gl_cv_func_ldexp_no_libm],
|
|
[
|
|
AC_LINK_IFELSE(
|
|
[AC_LANG_PROGRAM(
|
|
[[#include <math.h>
|
|
double x;
|
|
int y;]],
|
|
[[return ldexp (x, y) < 1;]])],
|
|
[gl_cv_func_ldexp_no_libm=yes],
|
|
[gl_cv_func_ldexp_no_libm=no])
|
|
])
|
|
if test $gl_cv_func_ldexp_no_libm = yes; then
|
|
AC_DEFINE([HAVE_LDEXP_IN_LIBC], [1],
|
|
[Define if the ldexp function is available in libc.])
|
|
fi
|
|
])
|