| # fnmatch_h.m4 serial 8 |
| dnl Copyright (C) 2009-2022 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 $ac_cv_header_fnmatch_h = yes; then |
| HAVE_FNMATCH_H=1 |
| else |
| HAVE_FNMATCH_H=0 |
| fi |
| AC_SUBST([HAVE_FNMATCH_H]) |
| |
| m4_ifdef([gl_POSIXCHECK], |
| [GL_GENERATE_FNMATCH_H=true], |
| [GL_GENERATE_FNMATCH_H=false |
| if m4_ifdef([gl_ANSI_CXX], [test "$CXX" != no], [false]); then |
| dnl Override <fnmatch.h> always, to support the C++ GNULIB_NAMESPACE. |
| GL_GENERATE_FNMATCH_H=true |
| else |
| if test $ac_cv_header_fnmatch_h != yes; then |
| dnl Provide a substitute <fnmatch.h> file. |
| GL_GENERATE_FNMATCH_H=true |
| fi |
| fi |
| ]) |
| |
| 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], |
| [ |
| gl_FNMATCH_H_REQUIRE_DEFAULTS |
| GL_GENERATE_FNMATCH_H=true |
| ]) |
| |
| # gl_FNMATCH_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_FNMATCH_MODULE_INDICATOR], |
| [ |
| dnl Ensure to expand the default settings once only. |
| gl_FNMATCH_H_REQUIRE_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]) |
| ]) |
| |
| # 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_FNMATCH_H_REQUIRE_DEFAULTS], |
| [ |
| m4_defun(GL_MODULE_INDICATOR_PREFIX[_FNMATCH_H_MODULE_INDICATOR_DEFAULTS], [ |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FNMATCH]) |
| ]) |
| m4_require(GL_MODULE_INDICATOR_PREFIX[_FNMATCH_H_MODULE_INDICATOR_DEFAULTS]) |
| AC_REQUIRE([gl_FNMATCH_H_DEFAULTS]) |
| ]) |
| |
| AC_DEFUN([gl_FNMATCH_H_DEFAULTS], |
| [ |
| dnl Assume POSIX behavior unless another module says otherwise. |
| HAVE_FNMATCH=1; AC_SUBST([HAVE_FNMATCH]) |
| REPLACE_FNMATCH=0; AC_SUBST([REPLACE_FNMATCH]) |
| ]) |