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-rw-r--r--gnulib/import/m4/fnmatch_h.m440
1 files changed, 26 insertions, 14 deletions
diff --git a/gnulib/import/m4/fnmatch_h.m4 b/gnulib/import/m4/fnmatch_h.m4
index 7840b4a4439..ae5cd869cff 100644
--- a/gnulib/import/m4/fnmatch_h.m4
+++ b/gnulib/import/m4/fnmatch_h.m4
@@ -1,5 +1,5 @@
-# fnmatch_h.m4 serial 4
-dnl Copyright (C) 2009-2021 Free Software Foundation, Inc.
+# 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.
@@ -27,20 +27,18 @@ AC_DEFUN_ONCE([gl_FNMATCH_H],
AC_SUBST([HAVE_FNMATCH_H])
m4_ifdef([gl_POSIXCHECK],
- [FNMATCH_H=fnmatch.h],
- [FNMATCH_H=''
+ [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.
- FNMATCH_H=fnmatch.h
+ GL_GENERATE_FNMATCH_H=true
else
if test $ac_cv_header_fnmatch_h != yes; then
dnl Provide a substitute <fnmatch.h> file.
- FNMATCH_H=fnmatch.h
+ GL_GENERATE_FNMATCH_H=true
fi
fi
])
- AC_SUBST([FNMATCH_H])
- AM_CONDITIONAL([GL_GENERATE_FNMATCH_H], [test -n "$FNMATCH_H"])
dnl Check for declarations of anything we want to poison if the
dnl corresponding gnulib module is not in use.
@@ -52,23 +50,37 @@ AC_DEFUN_ONCE([gl_FNMATCH_H],
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"])
+ 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 Use AC_REQUIRE here, so that the default settings are expanded once only.
- AC_REQUIRE([gl_FNMATCH_H_DEFAULTS])
+ 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],
[
- 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])