Prefer build_alias over host when host_alias is not set.

diff --git a/configure.in b/configure.in
index a8e9aec87499dc39a130c38853c76d8800ced8ea..b8aadf595446352f4125437011f7056fc71c6a20 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -200,7 +200,7 @@ fi
 
 AC_CANONICAL_HOST
 canonical=$host
-configuration=${host_alias-$host}
+configuration=${host_alias-${build_alias-$host}}
 
 dnl This used to use changequote, but, apart from `changequote is evil'
 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting