shorter names for kernel and buildroot dirs

buildroot_config/default

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+# Toolchain options.
+# Enable as much visibility as possible.
+BR2_CCACHE=y
+BR2_CCACHE_USE_BASEDIR=n
+BR2_DEBUG_3=y
+BR2_ENABLE_DEBUG=y
+BR2_GCC_ENABLE_GRAPHITE=y
+BR2_GCC_ENABLE_LTO=y
+BR2_GCC_ENABLE_OPENMP=y
+BR2_OPTIMIZE_0=y
+BR2_PTHREAD_DEBUG=y
+BR2_TOOLCHAIN_BUILDROOT_CXX=y
+BR2_TOOLCHAIN_BUILDROOT_FORTRAN=y
+BR2_TOOLCHAIN_BUILDROOT_WCHAR=y
+
+# # Rootfs
+# BR2_TARGET_ROOTFS_CPIO=n
+# BR2_TARGET_ROOTFS_EXT2=y
+# BR2_TARGET_ROOTFS_INITRAMFS=n
+# BR2_TARGET_ROOTFS_EXT2_SIZE="512M"
+#
+# # Host GDB
+# BR2_GDB_VERSION="7.11.1"
+# BR2_GDB_VERSION_7_10=n
+# BR2_GDB_VERSION_7_11=y
+# BR2_GDB_VERSION_7_12=n
+# BR2_PACKAGE_HOST_GDB=y
+# BR2_PACKAGE_HOST_GDB_PYTHON=y
+# BR2_PACKAGE_HOST_GDB_SIM=y
+# BR2_PACKAGE_HOST_GDB_TUI=y
+
+# # Custom packages
+# BR2_PACKAGE_KERNEL_MODULE=y
+# BR2_SAMPLE_PACKAGE=y
+
+# We were tempted to do this to disable S40network neatly,
+# but that package also creates extra configuration files
+# such as /etc/network/interfaces which we need. So we just
+# remove the init.d file for now.
+#BR2_PACKAGE_IFUPDOWN_SCRIPTS=n
+
+# misc packages
+# BR2_PACKAGE_DHRYSTONE=y
+# BR2_PACKAGE_FILE=y
+# BR2_PACKAGE_PCIUTILS=y
+# # For qemu-ga on guest. TODO: do something with it, and document it.
+# # Maybe: https://superuser.com/questions/930588/how-to-pass-commands-noninteractively-to-running-qemu-from-the-guest-qmp-via-te
+# BR2_PACKAGE_QEMU=y
+# BR2_PACKAGE_STRACE=y
+
+# # lscpu: TODO not installing?
+# BR2_PACKAGE_UTIL_LINUX=y
+# BR2_PACKAGE_UTIL_LINUX_BINARIES=y
+# # taskset
+# BR2_PACKAGE_UTIL_LINUX_SCHEDUTILS=y
+
+# # gdbserver
+# BR2_PACKAGE_GDB=y
+
+# # ftrace
+# BR2_PACKAGE_TRACE_CMD=y
+#
+# # DTC
+# BR2_PACKAGE_DTC=y
+# BR2_PACKAGE_DTC_PROGRAMS=y
+# BR2_PACKAGE_HOST_DTC=y

buildroot_config/gpio

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+BR2_PACKAGE_LINUX_TOOLS=y
+BR2_PACKAGE_LINUX_TOOLS_GPIO=y

buildroot_config/kmscube

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+BR2_PACKAGE_KMSCUBE=y
+BR2_PACKAGE_MESA3D=y
+BR2_PACKAGE_MESA3D_OPENGL_EGL=y
+BR2_PACKAGE_MESA3D_OPENGL_ES=y
+
+# Software rasteriser.
+# Selects the following chain:
+# BR2_PACKAGE_MESA3D_DRIVER=y
+# BR2_PACKAGE_MESA3D_DRI_DRIVER=y
+BR2_PACKAGE_MESA3D_DRI_DRIVER_SWRAST=y

buildroot_config/x11

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+BR2_PACKAGE_XAPP_TWM=y
+BR2_PACKAGE_XAPP_XCALC=y
+BR2_PACKAGE_XAPP_XCLOCK=y
+BR2_PACKAGE_XAPP_XEYES=y
+BR2_PACKAGE_XAPP_XINIT=y
+BR2_PACKAGE_XDRIVER_XF86_INPUT_KEYBOARD=y
+BR2_PACKAGE_XDRIVER_XF86_INPUT_MOUSE=y
+BR2_PACKAGE_XDRIVER_XF86_VIDEO_CIRRUS=y
+BR2_PACKAGE_XDRIVER_XF86_VIDEO_FBDEV=y
+BR2_PACKAGE_XDRIVER_XF86_VIDEO_VESA=y
+BR2_PACKAGE_XORG7=y
+BR2_PACKAGE_XSERVER_XORG_SERVER=y
+BR2_PACKAGE_XTERM=y
+BR2_TOOLCHAIN_BUILDROOT_CXX=y
+BR2_TOOLCHAIN_BUILDROOT_WCHAR=y