Accepting request 578304 from Virtualization

- add use-alloca.patch (bsc#1079838)

OBS-URL: https://build.opensuse.org/request/show/578304
OBS-URL: https://build.opensuse.org/package/show/devel:tools:building/kbuild?expand=0&rev=36

kbuild.spec

@@ -1,7 +1,7 @@
 #
 # spec file for package kbuild
 #
-# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2018 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -42,6 +42,7 @@ Patch8:         kbuild-wrong-memset.patch
 Patch9:         ppc64le.patch
 Patch10:        aarch64.patch
 Patch11:        kbuild-gcc7.patch
+Patch12:        use-alloca.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 
 %description
@@ -69,6 +70,7 @@ The goals of the kBuild framework:
 %patch9 -p1
 %patch10 -p1
 %patch11 -p1
+%patch12
 
 %build
 export CFLAGS="$RPM_OPT_FLAGS"