Update submodules + Build android support library.

submodules/bctoolbox

@@ -1 +1 @@
-Subproject commit 8852ed3a237697606f4ffa355edf2a9ed6326640
+Subproject commit a7eead409521583203b82a827adead9954c1a1d6

submodules/belle-sip

@@ -1 +1 @@
-Subproject commit ae856fa959a93ca6a9abc9b37cf27100cbf2a60d
+Subproject commit e2ef0e3bbf544a3a9483e6c07a56133040e5ddd5

submodules/cmake-builder

@@ -1 +1 @@
-Subproject commit 5486c673de95cef2eeb700c420c99d1a97544318
+Subproject commit 1c9f7d7ad71b327dcffb9663b5190db49cc6407e

submodules/externals/build/support/CMakeLists.txt

@@ -0,0 +1,43 @@
+############################################################################
+# CMakeLists.txt
+# Copyright (C) 2016  Belledonne Communications, Grenoble France
+#
+############################################################################
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+############################################################################
+
+cmake_minimum_required(VERSION 3.0)
+project(androidsupport LANGUAGES C)
+
+include(GNUInstallDirs)
+
+
+set(SUPPORT_SOURCES
+	"${ANDROID_SUPPORT}/src/musl-locale/iconv.c"
+	"${ANDROID_SUPPORT}/src/musl-locale/langinfo.c"
+	"${ANDROID_SUPPORT}/src/musl-locale/nl_langinfo_l.c"
+	"${ANDROID_SUPPORT}/src/musl-multibyte/wctomb.c"
+)
+
+add_library(support STATIC ${SUPPORT_SOURCES})
+
+install(TARGETS support
+	RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+	LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+	ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+	PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE
+)

submodules/linphone

@@ -1 +1 @@
-Subproject commit e4c674c2e3887063aa2c73163c748acccd5fd12b
+Subproject commit fad94bc04ca0f551b5470f1210a28042d20c7623