88 lines
2.9 KiB
Plaintext
88 lines
2.9 KiB
Plaintext
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# fnmatch_h.m4 serial 8
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dnl Copyright (C) 2009-2023 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl From Bruno Haible.
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AC_DEFUN_ONCE([gl_FNMATCH_H],
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[
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AC_REQUIRE([gl_FNMATCH_H_DEFAULTS])
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m4_ifdef([gl_ANSI_CXX], [AC_REQUIRE([gl_ANSI_CXX])])
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AC_CHECK_HEADERS_ONCE([fnmatch.h])
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gl_CHECK_NEXT_HEADERS([fnmatch.h])
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dnl Persuade glibc <fnmatch.h> to declare FNM_CASEFOLD etc.
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dnl This is only needed if gl_fnmatch_required = GNU. It would be possible
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dnl to avoid this dependency for gl_FUNC_FNMATCH_POSIX by putting
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dnl gl_FUNC_FNMATCH_GNU into a separate .m4 file.
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AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
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if test $ac_cv_header_fnmatch_h = yes; then
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HAVE_FNMATCH_H=1
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else
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HAVE_FNMATCH_H=0
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fi
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AC_SUBST([HAVE_FNMATCH_H])
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m4_ifdef([gl_POSIXCHECK],
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[GL_GENERATE_FNMATCH_H=true],
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[GL_GENERATE_FNMATCH_H=false
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if m4_ifdef([gl_ANSI_CXX], [test "$CXX" != no], [false]); then
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dnl Override <fnmatch.h> always, to support the C++ GNULIB_NAMESPACE.
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GL_GENERATE_FNMATCH_H=true
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else
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if test $ac_cv_header_fnmatch_h != yes; then
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dnl Provide a substitute <fnmatch.h> file.
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GL_GENERATE_FNMATCH_H=true
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fi
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fi
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])
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dnl Check for declarations of anything we want to poison if the
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dnl corresponding gnulib module is not in use.
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gl_WARN_ON_USE_PREPARE([[#include <fnmatch.h>
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]],
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[fnmatch])
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])
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dnl Unconditionally enables the replacement of <fnmatch.h>.
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AC_DEFUN([gl_REPLACE_FNMATCH_H],
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[
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gl_FNMATCH_H_REQUIRE_DEFAULTS
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GL_GENERATE_FNMATCH_H=true
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])
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# gl_FNMATCH_MODULE_INDICATOR([modulename])
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# sets the shell variable that indicates the presence of the given module
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# to a C preprocessor expression that will evaluate to 1.
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# This macro invocation must not occur in macros that are AC_REQUIREd.
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AC_DEFUN([gl_FNMATCH_MODULE_INDICATOR],
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[
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dnl Ensure to expand the default settings once only.
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gl_FNMATCH_H_REQUIRE_DEFAULTS
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gl_MODULE_INDICATOR_SET_VARIABLE([$1])
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dnl Define it also as a C macro, for the benefit of the unit tests.
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gl_MODULE_INDICATOR_FOR_TESTS([$1])
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])
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# Initializes the default values for AC_SUBSTed shell variables.
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# This macro must not be AC_REQUIREd. It must only be invoked, and only
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# outside of macros or in macros that are not AC_REQUIREd.
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AC_DEFUN([gl_FNMATCH_H_REQUIRE_DEFAULTS],
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[
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m4_defun(GL_MODULE_INDICATOR_PREFIX[_FNMATCH_H_MODULE_INDICATOR_DEFAULTS], [
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FNMATCH])
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])
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m4_require(GL_MODULE_INDICATOR_PREFIX[_FNMATCH_H_MODULE_INDICATOR_DEFAULTS])
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AC_REQUIRE([gl_FNMATCH_H_DEFAULTS])
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])
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AC_DEFUN([gl_FNMATCH_H_DEFAULTS],
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[
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dnl Assume POSIX behavior unless another module says otherwise.
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HAVE_FNMATCH=1; AC_SUBST([HAVE_FNMATCH])
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REPLACE_FNMATCH=0; AC_SUBST([REPLACE_FNMATCH])
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])
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