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-rw-r--r--gnulib-m4/ctype_h.m447
1 files changed, 47 insertions, 0 deletions
diff --git a/gnulib-m4/ctype_h.m4 b/gnulib-m4/ctype_h.m4
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+# ctype_h.m4 serial 9
+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.
+
+AC_DEFUN_ONCE([gl_CTYPE_H],
+[
+ AC_REQUIRE([gl_CTYPE_H_DEFAULTS])
+
+ dnl <ctype.h> is always overridden, because of GNULIB_POSIXCHECK.
+ gl_NEXT_HEADERS([ctype.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 <ctype.h>
+ ]], [isblank])
+])
+
+# gl_CTYPE_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_CTYPE_MODULE_INDICATOR],
+[
+ dnl Ensure to expand the default settings once only.
+ gl_CTYPE_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_CTYPE_H_REQUIRE_DEFAULTS],
+[
+ m4_defun(GL_MODULE_INDICATOR_PREFIX[_CTYPE_H_MODULE_INDICATOR_DEFAULTS], [
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISBLANK])
+ ])
+ m4_require(GL_MODULE_INDICATOR_PREFIX[_CTYPE_H_MODULE_INDICATOR_DEFAULTS])
+ AC_REQUIRE([gl_CTYPE_H_DEFAULTS])
+])
+
+AC_DEFUN([gl_CTYPE_H_DEFAULTS],
+[
+ dnl Assume proper GNU behavior unless another module says otherwise.
+ HAVE_ISBLANK=1; AC_SUBST([HAVE_ISBLANK])
+])