2022-12-24 Paul Eggert <eggert@cs.ucla.edu>
+ extensions: enable some C23 Annex F functions
+ * m4/extensions.m4 (AC_USE_SYSTEM_EXTENSIONS):
+ Also define __STDC_WANT_IEC_60559_EXT__, for C23 Annex F
+ functions like totalorder. This syncs from Autoconf master.
+
stdnoreturn: deprecate
C23 says <stdnoreturn.h> is obsolescent, so deprecate the
stdnoreturn module. I don't think it was being used anyway
-# serial 22 -*- Autoconf -*-
+# serial 23 -*- Autoconf -*-
# Enable extensions on systems that normally disable them.
# Copyright (C) 2003, 2006-2022 Free Software Foundation, Inc.
# its dependencies. This will ensure that the gl_USE_SYSTEM_EXTENSIONS
# invocation occurs in gl_EARLY, not in gl_INIT.
-m4_version_prereq([2.70.1], [], [
+m4_version_prereq([2.72], [], [
# AC_USE_SYSTEM_EXTENSIONS
# ------------------------
#ifndef __STDC_WANT_IEC_60559_DFP_EXT__
# undef __STDC_WANT_IEC_60559_DFP_EXT__
#endif
+/* Enable extensions specified by C23 Annex F. */
+#ifndef __STDC_WANT_IEC_60559_EXT__
+# undef __STDC_WANT_IEC_60559_EXT__
+#endif
/* Enable extensions specified by ISO/IEC TS 18661-4:2015. */
#ifndef __STDC_WANT_IEC_60559_FUNCS_EXT__
# undef __STDC_WANT_IEC_60559_FUNCS_EXT__
#endif
-/* Enable extensions specified by ISO/IEC TS 18661-3:2015. */
+/* Enable extensions specified by C23 Annex H and ISO/IEC TS 18661-3:2015. */
#ifndef __STDC_WANT_IEC_60559_TYPES_EXT__
# undef __STDC_WANT_IEC_60559_TYPES_EXT__
#endif
AC_DEFINE([__STDC_WANT_IEC_60559_ATTRIBS_EXT__])
AC_DEFINE([__STDC_WANT_IEC_60559_BFP_EXT__])
AC_DEFINE([__STDC_WANT_IEC_60559_DFP_EXT__])
+ AC_DEFINE([__STDC_WANT_IEC_60559_EXT__])
AC_DEFINE([__STDC_WANT_IEC_60559_FUNCS_EXT__])
AC_DEFINE([__STDC_WANT_IEC_60559_TYPES_EXT__])
AC_DEFINE([__STDC_WANT_LIB_EXT2__])