source: trunk/src/sed/m4/isblank.m4@ 3670

Last change on this file since 3670 was 3611, checked in by bird, 10 months ago

vendor/sed/current: GNU sed 4.9 (sed-4.9.tar.xz sha256:6e226b732e1cd739464ad6862bd1a1aba42d7982922da7a53519631d24975181)

File size: 538 bytes
Line 
1# isblank.m4 serial 3
2dnl Copyright (C) 2009-2022 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7AC_DEFUN([gl_FUNC_ISBLANK],
8[
9 dnl Persuade glibc <ctype.h> to declare isblank().
10 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
11
12 AC_REQUIRE([gl_CTYPE_H_DEFAULTS])
13 AC_CHECK_FUNCS_ONCE([isblank])
14 if test $ac_cv_func_isblank = no; then
15 HAVE_ISBLANK=0
16 fi
17])
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