63 lines
2.1 KiB
Plaintext
63 lines
2.1 KiB
Plaintext
|
# Configure a replacement for <strings.h>.
|
||
|
|
# serial 9
|
||
|
|
|
||
|
|
# Copyright (C) 2007, 2009-2023 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.
|
||
|
|
|
||
|
|
AC_DEFUN_ONCE([gl_STRINGS_H],
|
||
|
|
[
|
||
|
|
dnl Ensure to expand the default settings once only, before all statements
|
||
|
|
dnl that occur in other macros.
|
||
|
|
AC_REQUIRE([gl_STRINGS_H_DEFAULTS])
|
||
|
|
|
||
|
|
gl_CHECK_NEXT_HEADERS([strings.h])
|
||
|
|
if test $ac_cv_header_strings_h = yes; then
|
||
|
|
HAVE_STRINGS_H=1
|
||
|
|
else
|
||
|
|
HAVE_STRINGS_H=0
|
||
|
|
fi
|
||
|
|
AC_SUBST([HAVE_STRINGS_H])
|
||
|
|
|
||
|
|
dnl Check for declarations of anything we want to poison if the
|
||
|
|
dnl corresponding gnulib module is not in use.
|
||
|
|
gl_WARN_ON_USE_PREPARE([[
|
||
|
|
/* Minix 3.1.8 has a bug: <sys/types.h> must be included before
|
||
|
|
<strings.h>. */
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <strings.h>
|
||
|
|
]], [ffs strcasecmp strncasecmp])
|
||
|
|
])
|
||
|
|
|
||
|
|
# gl_STRINGS_MODULE_INDICATOR([modulename])
|
||
|
|
# sets the shell variable that indicates the presence of the given module
|
||
|
|
# to a C preprocessor expression that will evaluate to 1.
|
||
|
|
# This macro invocation must not occur in macros that are AC_REQUIREd.
|
||
|
|
AC_DEFUN([gl_STRINGS_MODULE_INDICATOR],
|
||
|
|
[
|
||
|
|
dnl Ensure to expand the default settings once only.
|
||
|
|
gl_STRINGS_H_REQUIRE_DEFAULTS
|
||
|
|
gl_MODULE_INDICATOR_SET_VARIABLE([$1])
|
||
|
|
])
|
||
|
|
|
||
|
|
# Initializes the default values for AC_SUBSTed shell variables.
|
||
|
|
# This macro must not be AC_REQUIREd. It must only be invoked, and only
|
||
|
|
# outside of macros or in macros that are not AC_REQUIREd.
|
||
|
|
AC_DEFUN([gl_STRINGS_H_REQUIRE_DEFAULTS],
|
||
|
|
[
|
||
|
|
m4_defun(GL_MODULE_INDICATOR_PREFIX[_STRINGS_H_MODULE_INDICATOR_DEFAULTS], [
|
||
|
|
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FFS])
|
||
|
|
])
|
||
|
|
m4_require(GL_MODULE_INDICATOR_PREFIX[_STRINGS_H_MODULE_INDICATOR_DEFAULTS])
|
||
|
|
AC_REQUIRE([gl_STRINGS_H_DEFAULTS])
|
||
|
|
])
|
||
|
|
|
||
|
|
AC_DEFUN([gl_STRINGS_H_DEFAULTS],
|
||
|
|
[
|
||
|
|
dnl Assume proper GNU behavior unless another module says otherwise.
|
||
|
|
HAVE_FFS=1; AC_SUBST([HAVE_FFS])
|
||
|
|
HAVE_STRCASECMP=1; AC_SUBST([HAVE_STRCASECMP])
|
||
|
|
HAVE_DECL_STRNCASECMP=1; AC_SUBST([HAVE_DECL_STRNCASECMP])
|
||
|
|
])
|