This commit moves all of the libraries under a common directory called libs/. This most certainly break libcxx and uClibc++ for now.

Squashed commit of the following:

    libs/libxx:  Fix some confusing in naming.  If the directory is called libxx, then the library must be libxx.a (unless perhaps LIBCXX is selected).
    libs/:  Fix paths in moved library directories.
    libs:  Brute force move of libc, libnx, and libxx to libs.  Cannot yet build it in that configuration.

Kconfig

@@ -1662,7 +1662,7 @@ endmenu
 
 menu "Graphics Support"
 source graphics/Kconfig
-source libnx/Kconfig
+source libs/libnx/Kconfig
 endmenu
 
 menu "Memory Management"
@@ -1682,8 +1682,8 @@ source binfmt/Kconfig
 endmenu
 
 menu "Library Routines"
-source libc/Kconfig
+source libs/libc/Kconfig
-source libxx/Kconfig
+source libs/libxx/Kconfig
 endmenu
 
 menu "Application Configuration"

libc/Kconfig

@@ -1,26 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see the file kconfig-language.txt in the NuttX tools repository.
-#
-
-comment "Standard C Library Options"
-
-source libc/stdio/Kconfig
-source libc/math/Kconfig
-source libc/machine/Kconfig
-source libc/stdlib/Kconfig
-source libc/unistd/Kconfig
-source libc/string/Kconfig
-source libc/dllfcn/Kconfig
-source libc/modlib/Kconfig
-source libc/wchar/Kconfig
-source libc/locale/Kconfig
-source libc/lzf/Kconfig
-source libc/time/Kconfig
-source libc/tls/Kconfig
-source libc/net/Kconfig
-source libc/netdb/Kconfig
-source libc/misc/Kconfig
-source libc/wqueue/Kconfig
-source libc/hex2bin/Kconfig
-source libc/userfs/Kconfig

libnx/Kconfig

@@ -1,10 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see the file kconfig-language.txt in the NuttX tools repository.
-#
-
-source libnx/nx/Kconfig
-source libnx/nxfonts/Kconfig
-source libnx/nxglib/Kconfig
-source libnx/nxmu/Kconfig
-source libnx/nxtk/Kconfig

libnx/kbin/Makefile

@@ -1,48 +0,0 @@
-############################################################################
-# libnx/kbin/Makefile
-#
-#   Copyright (C) 2013 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-###########################################################################
-
--include $(TOPDIR)/Make.defs
-
-all:
-.PHONY: clean distclean
-
-# Clean Targets:
-
-clean:
-	$(call CLEAN)
-
-# Deep clean -- removes all traces of the configuration
-
-distclean: clean

libnx/ubin/Makefile

@@ -1,48 +0,0 @@
-############################################################################
-# libnx/ubin/Makefile
-#
-#   Copyright (C) 2013 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-###########################################################################
-
--include $(TOPDIR)/Make.defs
-
-all:
-.PHONY: clean distclean
-
-# Clean Targets:
-
-clean:
-	$(call CLEAN)
-
-# Deep clean -- removes all traces of the configuration
-
-distclean: clean

libs/libc/Kconfig

@@ -0,0 +1,26 @@
+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+comment "Standard C Library Options"
+
+source libs/libc/stdio/Kconfig
+source libs/libc/math/Kconfig
+source libs/libc/machine/Kconfig
+source libs/libc/stdlib/Kconfig
+source libs/libc/unistd/Kconfig
+source libs/libc/string/Kconfig
+source libs/libc/dllfcn/Kconfig
+source libs/libc/modlib/Kconfig
+source libs/libc/wchar/Kconfig
+source libs/libc/locale/Kconfig
+source libs/libc/lzf/Kconfig
+source libs/libc/time/Kconfig
+source libs/libc/tls/Kconfig
+source libs/libc/net/Kconfig
+source libs/libc/netdb/Kconfig
+source libs/libc/misc/Kconfig
+source libs/libc/wqueue/Kconfig
+source libs/libc/hex2bin/Kconfig
+source libs/libc/userfs/Kconfig

libs/libc/Makefile

@@ -1,5 +1,5 @@
 ############################################################################
-# libc/Makefile
+# libs/libc/Makefile
 #
 #   Copyright (C) 2007-2014, 2016-2017 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/README.txt

@@ -24,7 +24,7 @@ with no applications.
 Sub-Directories
 ===============
 
-The files in the libc/ directory are organized (mostly) according which file
+The files in the libs/libc/ directory are organized (mostly) according which file
 in the include/ directory provides the prototype for library functions.  So
 we have:
 

libs/libc/aio/Make.defs

@@ -1,5 +1,5 @@
 ############################################################################
-# libc/aio/Make.defs
+# libs/libc/aio/Make.defs
 #
 #   Copyright (C) 2014 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/aio/aio.h

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/aio/aio.h
+ * libs/libc/aio/aio.h
  *
  *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/aio/aio_error.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/aio/aio_error.c
+ * libs/libc/aio/aio_error.c
  *
  *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/aio/aio_return.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/aio/aio_return.c
+ * libs/libc/aio/aio_return.c
  *
  *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/aio/aio_suspend.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/aio/aio_suspend.c
+ * libs/libc/aio/aio_suspend.c
  *
  *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/aio/lio_listio.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/aio/lio_listio.c
+ * libs/libc/aio/lio_listio.c
  *
  *   Copyright (C) 2014-2015 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/audio/Make.defs

@@ -1,5 +1,5 @@
 ############################################################################
-# libc/audio/Make.defs
+# libs/libc/audio/Make.defs
 #
 #   Copyright (C) 2013 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/audio/lib_buffer.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/audio/lib_buffer.c
+ * libs/libc/audio/lib_buffer.c
  *
  *   Copyright (C) 2013 Ken Pettit. All rights reserved.
  *   Author: Ken Pettit <pettitkd@gmail.com>

libs/libc/bin/Makefile

@@ -1,5 +1,5 @@
 ############################################################################
-# libnx/bin/Makefile
+# libs/libc/bin/Makefile
 #
 #   Copyright (C) 2013 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/dirent/Make.defs

@@ -1,5 +1,5 @@
 ############################################################################
-# libc/dirent/Make.defs
+# libs/libc/dirent/Make.defs
 #
 #   Copyright (C) 2012 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/dirent/lib_readdirr.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/dirent/lib_readdirr.c
+ * libs/libc/dirent/lib_readdirr.c
  *
  *   Copyright (C) 2007-2009, 2011-2012 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/dirent/lib_telldir.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/dirent/fs_telldir.c
+ * libs/libc/dirent/fs_telldir.c
  *
  *   Copyright (C) 2007-2008, 2011-2012 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/dllfcn/Make.defs

@@ -1,5 +1,5 @@
 ############################################################################
-# libc/dllfcn/Make.defs
+# libs/libc/dllfcn/Make.defs
 #
 #   Copyright (C) 2017 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/dllfcn/lib_dlclose.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/dllfcn/lib_dlclose.c
+ * libs/libc/dllfcn/lib_dlclose.c
  *
  *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/dllfcn/lib_dlerror.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/dllfcn/lib_dlerror.c
+ * libs/libc/dllfcn/lib_dlerror.c
  *
  *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/dllfcn/lib_dlopen.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/dllfcn/lib_dlopen.c
+ * libs/libc/dllfcn/lib_dlopen.c
  *
  *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/dllfcn/lib_dlsym.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/dllfcn/lib_dlsym.c
+ * libs/libc/dllfcn/lib_dlsym.c
  *
  *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/dllfcn/lib_dlsymtab.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/dllfcn/lib_symtab.c
+ * libs/libc/dllfcn/lib_symtab.c
  *
  *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/fixedmath/Make.defs

@@ -1,5 +1,5 @@
 ############################################################################
-# libc/fixedmath/Make.defs
+# libs/libc/fixedmath/Make.defs
 #
 #   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/fixedmath/lib_b16atan2.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/fixedmath/lib_b16atan2.c
+ * libs/libc/fixedmath/lib_b16atan2.c
  *
  *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/fixedmath/lib_b16cos.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/fixedmath/lib_b16cos.c
+ * libs/libc/fixedmath/lib_b16cos.c
  *
  *   Copyright (C) 2007, 2008, 2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/fixedmath/lib_b16sin.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/fixedmath/lib_b16sin.c
+ * libs/libc/fixedmath/lib_b16sin.c
  *
  *   Copyright (C) 2008, 2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/fixedmath/lib_fixedmath.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/math/lib_fixedmath.c
+ * libs/libc/math/lib_fixedmath.c
  *
  *   Copyright (C) 2008-2009, 2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/fixedmath/lib_ubsqrt.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/fixedmath/lib_ubsqrt.c
+ * libs/libc/fixedmath/lib_ubsqrt.c
  *
  *   Copyright (C) 2014,2017 Jussi Kivilinna <jussi.kivilinna@haltian.com>
  *

libs/libc/hex2bin/Make.defs

@@ -1,5 +1,5 @@
 ############################################################################
-# libc/hex2bin/Make.defs
+# libs/libc/hex2bin/Make.defs
 #
 #   Copyright (C) 2016 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/hex2bin/lib_fhex2mem.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/hex2bin/fhex2mem.c
+ * libs/libc/hex2bin/fhex2mem.c
  *
  *   Copyright (C) 2014, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/hex2bin/lib_hex2bin.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/hex2bin/hex2bin.c
+ * libs/libc/hex2bin/hex2bin.c
  *
  *   Copyright (C) 2014, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/hex2bin/lib_hex2mem.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/hex2bin/hex2mem.c
+ * libs/libc/hex2bin/hex2mem.c
  *
  *   Copyright (C) 2014, 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/inttypes/Make.defs

@@ -1,5 +1,5 @@
 ############################################################################
-# libc/inttypes/Make.defs
+# libs/libc/inttypes/Make.defs
 #
 #   Copyright (C) 2017 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/inttypes/lib_imaxabs.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/inttypes/lib_imaxabs.c
+ * libs/libc/inttypes/lib_imaxabs.c
  *
  *   Copyright (C) 2010-2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/inttypes/lib_strtoimax.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/inttypes/lib_strtoimax.c
+ * libs/libc/inttypes/lib_strtoimax.c
  *
  *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/inttypes/lib_strtoumax.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * /libc/inttypes/lib_strtoumax.c
+ * /libs/libc/inttypes/lib_strtoumax.c
  *
  *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/kbin/Makefile

@@ -1,5 +1,5 @@
 ############################################################################
-# libc/kbin/Makefile
+# libs/libc/kbin/Makefile
 #
 #   Copyright (C) 2013 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/libc.h

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/libc.h
+ * libs/libc/libc.h
  *
  *   Copyright (C) 2007-2014, 2016-2017 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/libgen/Make.defs

@@ -1,5 +1,5 @@
 ############################################################################
-# libc/libgen/Make.defs
+# libs/libc/libgen/Make.defs
 #
 #   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <gnutt@nuttx.org>

libs/libc/libgen/lib_basename.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/libgen/lib_basename.c
+ * libs/libc/libgen/lib_basename.c
  *
  *   Copyright (C) 2007, 2009, 2011-2012 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>