`gammu`: Misses (proper) dependency on `libmariadb`.

[dreirund]

Ahoj,

Problem description:

when I try to build gammu from the HandsomeMod/packages feed, it fails in package/install with

 * pkg_hash_check_unresolved: cannot find dependency libmariadb3 for gammu
 * pkg_hash_fetch_best_installation_candidate: Packages for gammu found, but incompatible with the architectures configured
 * opkg_install_cmd: Cannot install package gammu.

After a failing make -j6, here the terminal output of
make -j1 V=sc package/install:

[...]
IPKG_NO_SCRIPT=1 IPKG_INSTROOT=/[...]/build_dir/target-aarch64_cortex-a53+neon_musl/root-msm89xx TMPDIR=/[...]/build_dir/target-aarch64_cortex-a53+neon_musl/root-msm89xx/tmp /[...]/staging_dir/host/bin/opkg --offline-root /[...]/build_dir/target-aarch64_cortex-a53+neon_musl/root-msm89xx --force-postinstall --add-dest root:/ --add-arch all:100 --add-arch aarch64_cortex-a53_neon:200 install $(cat /[...]/tmp/opkg_install_list)
Installing base-files (14-r0-4d2642e) to root...
[...]
Installing pciutils (3.8.0-2) to root...
Unknown package 'gammu'.
Package libgdbm (1.18.1-2) installed in root is up to date.
Installing gddrescue (1.23-3) to root...
[...]
Configuring kmod-lib-crc-itu-t.
ConCollected errors:
 * resolve_conffiles: Existing conffile /[...]/build_dir/target-aarch64_cortex-a53+neon_musl/root-msm89xx/etc/ppp/chap-secrets is different from the conffile in the new package. The new conffile will be placed at /[...]/build_dir/target-aarch64_cortex-a53+neon_musl/root-msm89xx/etc/ppp/chap-secrets-opkg.
 * pkg_hash_check_unresolved: cannot find dependency libmariadb3 for gammu
 * pkg_hash_fetch_best_installation_candidate: Packages for gammu found, but incompatible with the architectures configured
 * opkg_install_cmd: Cannot install package gammu.
figuring arp-scan.
Configuring iptables-mod-rpfilter.
Configuring dnsmasq-full.
Configuring luci-proto-ncm.
make[1]: *** [package/Makefile:70: package/install] Error 255
make[1]: Leaving directory '/[...]'
make: *** [/[...]/include/toplevel.mk:230: package/install] Error 2

→ Full package build terminal output.

Configuration:

• grep -i gammu .config:

  CONFIG_PACKAGE_gammu=y
  

• grep -i mariadb .config:

  CONFIG_PACKAGE_libmariadb=m
  # CONFIG_PACKAGE_libmariadb-plugin-auth-gssapi-client is not set
  # CONFIG_PACKAGE_libmariadb-plugin-remote-io is not set
  # CONFIG_PACKAGE_mariadb-client is not set
  # CONFIG_PACKAGE_mariadb-server-base is not set
  

• → Full .config.

Workaround and diagnosis:

Manually setting CONFIG_PACKAGE_libmariadb=y does resolve this issue. So it seems gammu misses a proper dependency on libmariadb.