/usr/share/ada/adainclude/ is in libpcscada4-dev 0.7.3-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/ada/adainclude/pcscada/
/usr/share/ada/adainclude/pcscada.gpr
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/usr/share/ada/adainclude/pcscada/pcsc-scard.adb
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/usr/share/ada/adainclude/pcscada/pcsc-thin.adb
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/usr/share/ada/adainclude/pcscada/pcsc.ads