Merge r9550..r9552 (move seg_override and sigcontext) from the DARWIN branch.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@9553 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/configure.in b/configure.in
index 91ed976..4f02b72 100644
--- a/configure.in
+++ b/configure.in
@@ -1751,6 +1751,7 @@
    none/tests/ppc64/Makefile
    none/tests/x86/Makefile
    none/tests/linux/Makefile
+   none/tests/x86-linux/Makefile
    none/docs/Makefile
    exp-omega/Makefile
    exp-omega/tests/Makefile