Re: GNU M4 1.4.8b released (beta release)

[Eric Blake]

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According to Eric Blake on 3/10/2007 4:12 PM:
> Is it worth patching autoconf's AC_TYPE_LONG_LONG_INT macro to declare
> that there is not a usable 'long long int' type if no corresponding
> unsigned long long type exists?

Now that savannah is back up after hardware failure, and since Matthew
confirmed off-list that this works, I'm checking in this.

2007-03-15  Eric Blake  <address@hidden>

        Avoid Tandem/NSK's broken long long (without a symmetric unsigned
        long long, it confuses gnulib).
        * configure.ac (AC_TYPE_LONG_LONG_INT): Declare long long broken
        if unsigned long long doesn't work.
        * THANKS: Update.
        Reported by Matthew Woehlke.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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Index: configure.ac
===================================================================
RCS file: /sources/m4/m4/configure.ac,v
retrieving revision 1.36.2.36
diff -u -p -r1.36.2.36 configure.ac
--- configure.ac        28 Feb 2007 13:48:18 -0000      1.36.2.36
+++ configure.ac        16 Mar 2007 02:26:49 -0000
@@ -56,6 +56,18 @@ AC_TYPE_SIZE_T
 
 AC_CHECK_FUNCS_ONCE([sigaction sigaltstack sigstack sigvec strerror])
 
+# Tandem/NSK is broken - it has 'long long int' but not
+# 'unsigned long long int', which confuses assumptions made by gnulib.
+# Simply pretend that neither type exists if both do not work.
+AC_TYPE_LONG_LONG_INT
+AC_TYPE_UNSIGNED_LONG_LONG_INT
+if test $ac_cv_type_long_long_int:$ac_cv_type_unsigned_long_long_int = yes:no
+then
+  ac_cv_type_long_long_int=no
+  AC_DEFINE([HAVE_LONG_LONG_INT], 0,
+    [Define to 1 if the system has the type `long long int'.])
+fi
+
 M4_INIT
 
 # Code from Jim Avera <address@hidden>.