FYI: reintroduce *_triplet variables

[Alexandre Duret-Lutz]

I mistakenly removed them during the switch to traces assuming
Autoconf would AC_SUBST them.  But this is wrong: Autoconf
doesn't define such variables.

I'm checking this in.

2002-05-17  Alexandre Duret-Lutz  <address@hidden>

        * lib/am/header-vars.am (build_triplet, host_triplet,
        target_triplet): Define.  Were removed by mistake on 2002-04-13.

Index: lib/am/header-vars.am
===================================================================
RCS file: /cvs/automake/automake/lib/am/header-vars.am,v
retrieving revision 1.44
diff -u -r1.44 header-vars.am
--- lib/am/header-vars.am       13 Apr 2002 21:26:35 -0000      1.44
+++ lib/am/header-vars.am       17 May 2002 13:51:16 -0000
@@ -53,3 +53,8 @@
 NORMAL_UNINSTALL = :
 PRE_UNINSTALL = :
 POST_UNINSTALL = :
+
+## dejagnu.am uses these variables.  Some users might rely on them too.
+?BUILD?build_triplet = @build@
+?HOST?host_triplet = @host@
+?TARGET?target_triplet = @target@

-- 
Alexandre Duret-Lutz