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authorJim Meyering <jim@meyering.net>2006-07-04 07:17:34 +0000
committerJim Meyering <jim@meyering.net>2006-07-04 07:17:34 +0000
commitab4ed7f7f10c8cb69bc028218fdd8cd1c989e486 (patch)
tree6ea0d1bdaa8ff051147081c5687e196b4b7fae0e /m4
parent6a9740567292a983b05533901dc7a687ec2fb68c (diff)
downloadcoreutils-ab4ed7f7f10c8cb69bc028218fdd8cd1c989e486.tar.xz
Really add wcwidth.m4.
Diffstat (limited to 'm4')
-rw-r--r--m4/wcwidth.m426
1 files changed, 26 insertions, 0 deletions
diff --git a/m4/wcwidth.m4 b/m4/wcwidth.m4
new file mode 100644
index 000000000..09cf55a0e
--- /dev/null
+++ b/m4/wcwidth.m4
@@ -0,0 +1,26 @@
+# wcwidth.m4 serial 3
+dnl Copyright (C) 2006 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_WCWIDTH],
+[
+ dnl Persuade glibc <wchar.h> to declare wcwidth().
+ AC_REQUIRE([AC_GNU_SOURCE])
+
+ AC_REQUIRE([AC_C_INLINE])
+ AC_REQUIRE([gt_TYPE_WCHAR_T])
+
+ AC_CHECK_HEADERS_ONCE([wchar.h wctype.h])
+ AC_CHECK_FUNCS_ONCE([iswprint wcwidth])
+
+ AC_CHECK_DECLS([wcwidth], [], [], [
+/* AIX 3.2.5 declares wcwidth in <string.h>. */
+#if HAVE_STRING_H
+# include <string.h>
+#endif
+#if HAVE_WCHAR_H
+# include <wchar.h>
+#endif
+])])