diff --git a/dialog.changes b/dialog.changes
index e1644de..15a3179 100644
--- a/dialog.changes
+++ b/dialog.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Thu Mar  5 08:05:24 UTC 2015 - werner@suse.de
+
+- Hack around bug in libtool as it seems to be broken in shell
+  function func_lalib_unsafe_p() as this does only work if a
+  file descriptor 0 exists.
+
 -------------------------------------------------------------------
 Wed Mar  4 14:26:46 UTC 2015 - werner@suse.de
 
diff --git a/dialog.spec b/dialog.spec
index 67549b0..bdab0cc 100644
--- a/dialog.spec
+++ b/dialog.spec
@@ -21,7 +21,7 @@ Url:            http://invisible-island.net/dialog/
 Version:        1.2
 Release:        0
 %define src_date 20150225
-%define somajor 11
+%define somajor 12
 Summary:        Menus and Input Boxes for Shell Scripts
 License:        LGPL-2.1
 Group:          Development/Tools/Other
@@ -69,7 +69,6 @@ Examples of using menus and dialog boxes in shell scripts.
 bzcat %{S:2} > po/ko.po
 %patch0 -p0
 %patch2 -p1
-chmod -x samples/*
 
 %build
     CC=gcc
@@ -94,9 +93,13 @@ chmod -x samples/*
     --disable-rpath-hack \
     --includedir=%{_includedir}/dialog
 
+# libtool seems to be broken in shell function func_lalib_unsafe_p()
+exec 0</dev/null
 make %{?_smp_mflags}
 
 %install
+# libtool seems to be broken in shell function func_lalib_unsafe_p()
+exec 0</dev/null
 make DESTDIR=%{buildroot} install
 
 find %{buildroot}%{_libdir} -name '*.la' -type f -delete -print