wget/m4/fnmatch_h.m4

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2022-05-14 03:18:11 +08:00
# fnmatch_h.m4 serial 4
dnl Copyright (C) 2009-2019 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 From Bruno Haible.
AC_DEFUN_ONCE([gl_FNMATCH_H],
[
AC_REQUIRE([gl_FNMATCH_H_DEFAULTS])
m4_ifdef([gl_ANSI_CXX], [AC_REQUIRE([gl_ANSI_CXX])])
AC_CHECK_HEADERS_ONCE([fnmatch.h])
gl_CHECK_NEXT_HEADERS([fnmatch.h])
dnl Persuade glibc <fnmatch.h> to declare FNM_CASEFOLD etc.
dnl This is only needed if gl_fnmatch_required = GNU. It would be possible
dnl to avoid this dependency for gl_FUNC_FNMATCH_POSIX by putting
dnl gl_FUNC_FNMATCH_GNU into a separate .m4 file.
AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
if test $ac_cv_header_fnmatch_h = yes; then
HAVE_FNMATCH_H=1
else
HAVE_FNMATCH_H=0
fi
AC_SUBST([HAVE_FNMATCH_H])
m4_ifdef([gl_POSIXCHECK],
[FNMATCH_H=fnmatch.h],
[FNMATCH_H=''
if m4_ifdef([gl_ANSI_CXX], [test "$CXX" != no], [false]); then
dnl Override <fnmatch.h> always, to support the C++ GNULIB_NAMESPACE.
FNMATCH_H=fnmatch.h
else
if test $ac_cv_header_fnmatch_h != yes; then
dnl Provide a substitute <fnmatch.h> file.
FNMATCH_H=fnmatch.h
fi
fi
])
AC_SUBST([FNMATCH_H])
AM_CONDITIONAL([GL_GENERATE_FNMATCH_H], [test -n "$FNMATCH_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([[#include <fnmatch.h>
]],
[fnmatch])
])
dnl Unconditionally enables the replacement of <fnmatch.h>.
AC_DEFUN([gl_REPLACE_FNMATCH_H],
[
AC_REQUIRE([gl_FNMATCH_H_DEFAULTS])
FNMATCH_H='fnmatch.h'
AM_CONDITIONAL([GL_GENERATE_FNMATCH_H], [test -n "$FNMATCH_H"])
])
AC_DEFUN([gl_FNMATCH_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_FNMATCH_H_DEFAULTS])
gl_MODULE_INDICATOR_SET_VARIABLE([$1])
dnl Define it also as a C macro, for the benefit of the unit tests.
gl_MODULE_INDICATOR_FOR_TESTS([$1])
])
AC_DEFUN([gl_FNMATCH_H_DEFAULTS],
[
GNULIB_FNMATCH=0; AC_SUBST([GNULIB_FNMATCH])
dnl Assume POSIX behavior unless another module says otherwise.
HAVE_FNMATCH=1; AC_SUBST([HAVE_FNMATCH])
REPLACE_FNMATCH=0; AC_SUBST([REPLACE_FNMATCH])
])