Problems with installing mc (release 19.07.03 on TL-WR1043ND_v2)

Installing and Using OpenWrt
1

I included package mc in my build, but ash cannot find it, and it is also not installable with opkg. What is the problem here?

Why is the version of the build data in ~/openwrt (r11063-85e04e9f46) not the same as the version of the build bin (r13881-bae4204e34)?

jaap@jaap:~/openwrt$ git branch
*(HEAD detached at v19.07.3)
  master
  openwrt-19.07
jaap@jaap:~/openwrt$
jaap@jaap:~/openwrt$ grep mc .config
[...]
CONFIG_PACKAGE_mc=y
[...]
jaap@jaap:~/openwrt$
CONFIG_DEFAULT_libc=y
[...] klibc-utils
CONFIG_PACKAGE_libc=y
[...]
jaap@jaap:~/openwrt$
jaap@jaap:~/openwrt$ cat version
r11063-85e04e9f46
jaap@jaap:~/openwrt$ cat version.date
1589653940
jaap@jaap:~/openwrt$
jaap@jaap:~/openwrt$ router
  _______                     ________        __
 |       |.-----.-----.-----.|  |  |  |.----.|  |_
 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 -----------------------------------------------------
 OpenWrt SNAPSHOT, r13881-bae4204e34
 -----------------------------------------------------
root@router:~# mc
-ash: mc: not found
root@router:~# opkg update
Downloading [...]/downloads.openwrt.org/releases/19.07.3/targets/ath79/generic/packages/Packages.gz
Updated list of available packages in /var/opkg-lists/reboot_core
Downloading [...]/downloads.openwrt.org/releases/19.07.3/targets/ath79/generic/packages/Packages.sig
Signature check passed.
Downloading [...]/downloads.openwrt.org/releases/19.07.3/packages/mips_24kc/base/Packages.gz
Updated list of available packages in /var/opkg-lists/reboot_base
Downloading [...]/downloads.openwrt.org/releases/19.07.3/packages/mips_24kc/base/Packages.sig
Signature check passed.
Downloading [...]/downloads.openwrt.org/releases/19.07.3/packages/mips_24kc/packages/Packages.gz
Updated list of available packages in /var/opkg-lists/reboot_packages
Downloading [...]/downloads.openwrt.org/releases/19.07.3/packages/mips_24kc/packages/Packages.sig
Signature check passed.
Downloading [...]/downloads.openwrt.org/releases/19.07.3/packages/mips_24kc/routing/Packages.gz
Updated list of available packages in /var/opkg-lists/reboot_routing
Downloading [...]/downloads.openwrt.org/releases/19.07.3/packages/mips_24kc/routing/Packages.sig
Signature check passed.
Downloading [...]/downloads.openwrt.org/releases/19.07.3/packages/mips_24kc/luci/Packages.gz
Updated list of available packages in /var/opkg-lists/reboot_luci
Downloading [...]/downloads.openwrt.org/releases/19.07.3/packages/mips_24kc/luci/Packages.sig
Signature check passed.
root@router:~# opkg install mc
Installing mc (4.8.23-3) to root...
Downloading [...]/downloads.openwrt.org/releases/19.07.3/packages/mips_24kc/packages/mc_4.8.23-3_mips_24kc.ipk
Collected errors:
satisfy_dependencies_for: Cannot satisfy the following dependencies for mc:
libc
opkg_install_cmd: Cannot install package mc.
root@router:~# cat /etc/openwrt_release | grep REVISION
DISTRIB_REVISION='r13881-bae4204e34'
root@router:~#
2

I have the same problem with the package block-mount.

jaap@jaap:~/openwrt$ grep block-mount .config
CONFIG_PACKAGE_block-mount=y
jaap@jaap:~/openwrt$
jaap@jaap:~/openwrt$ router
BusyBox v1.31.1 () built-in shell (ash)
  _______                     ________        __
 |       |.-----.-----.-----.|  |  |  |.----.|  |_
 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 -----------------------------------------------------
 OpenWrt SNAPSHOT, r13881-bae4204e34
 -----------------------------------------------------
root@router:~# block detect | uci import fstab
-ash: block: not found
root@router:~# opkg install block-mount
Installing block-mount (2020-05-12-84269037-1) to root...
Downloading http://downloads.openwrt.org/releases/19.07.3/targets/ath79/generic/packages/block-mount_2020-05-12-84269037-1_mips_24kc.ipk
Collected errors:
 * satisfy_dependencies_for: Cannot satisfy the following dependencies for block-mount:
 *      libc
 * opkg_install_cmd: Cannot install package block-mount.
root@router:~#