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-rw-r--r--gl/m4/isascii.m419
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diff --git a/gl/m4/isascii.m4 b/gl/m4/isascii.m4
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+# isascii.m4 serial 1
+dnl Copyright (C) 2005 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([gl_FUNC_ISASCII],
+[
+ AC_LIBSOURCES([isascii.h, isascii.c])
+
+ dnl Persuade glibc <ctype.h> to declare isascii().
+ AC_REQUIRE([AC_GNU_SOURCE])
+
+ AC_REPLACE_FUNCS(isascii)
+ AC_CHECK_DECLS_ONCE(isascii)
+])
+
+# Prerequisites of lib/isascii.h.
+AC_DEFUN([gl_PREREQ_ISASCII], [:])