[libsigc++2] Store sigc++/slot.h in git, don't generate it from m4

[Kjell Ahlstedt <kjellahl src gnome org>]

commit 9313889bd596afcd9a788061388b26c15d21351c
Author: Kjell Ahlstedt <kjell ahlstedt bredband net>
Date:   Wed Aug 12 18:58:57 2015 +0200

    Store sigc++/slot.h in git, don't generate it from m4
    
    * sigc++/macros/slot.h.m4: Remove.
    * sigc++/slot.h: New in git.
    * sigc++/filelist.am: Replace sigc++/macros/slot.h.m4 by sigc++/slot.h.
    See https://bugzilla.gnome.org/show_bug.cgi?id=752560#c6

 sigc++/filelist.am      |    7 +++----
 sigc++/macros/slot.h.m4 |   25 -------------------------
 sigc++/slot.h           |   20 ++++++++++++++++++++
 3 files changed, 23 insertions(+), 29 deletions(-)
---
diff --git a/sigc++/filelist.am b/sigc++/filelist.am
index 9e50e1f..ca1deca 100644
--- a/sigc++/filelist.am
+++ b/sigc++/filelist.am
@@ -16,11 +16,9 @@
 ## along with this library.  If not, see <http://www.gnu.org/licenses/>.
 
 # Base (./)
-base_m4 = template.macros.m4 signal.h.m4 slot.h.m4 \
-         limit_reference.h.m4
+base_m4 = template.macros.m4 signal.h.m4 limit_reference.h.m4
 base_built_cc =
-base_built_h = signal.h slot.h \
-              limit_reference.h
+base_built_h = signal.h limit_reference.h
 
 # Functors (functors/)
 functors_m4 = functor_trait.h.m4 slot.h.m4 ptr_fun.h.m4 mem_fun.h.m4
@@ -56,6 +54,7 @@ sigc_public_h =                               \
        reference_wrapper.h             \
        retype_return.h                 \
        signal_base.h                   \
+       slot.h                  \
        trackable.h                     \
        type_traits.h                   \
        visit_each.h                    \
diff --git a/sigc++/slot.h b/sigc++/slot.h
new file mode 100644
index 0000000..2490f12
--- /dev/null
+++ b/sigc++/slot.h
@@ -0,0 +1,20 @@
+/* Copyright 2002, The libsigc++ Development Team
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _SIGC_SLOT_H_
+#define _SIGC_SLOT_H_
+
+#include <sigc++/functors/slot.h>
+#endif /* _SIGC_SLOT_H_ */