/usr/share/ada/adainclude/gnatcoll_gmp/ is in libgnatcoll-gmp1.6-dev 1.6gpl2014-9.
This file is owned by root:root, with mode 0o755.
..
/usr/share/ada/adainclude/gnatcoll_gmp/gmp_support.c
/usr/share/ada/adainclude/gnatcoll_gmp/gnatcoll-gmp-integers-io.adb
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/usr/share/ada/adainclude/gnatcoll_gmp/gnatcoll-gmp-integers-misc.ads
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/usr/share/ada/adainclude/gnatcoll_gmp/gnatcoll-gmp-lib.ads
/usr/share/ada/adainclude/gnatcoll_gmp/gnatcoll-gmp-mpz_even_p.c
/usr/share/ada/adainclude/gnatcoll_gmp/gnatcoll-gmp-mpz_odd_p.c
/usr/share/ada/adainclude/gnatcoll_gmp/gnatcoll-gmp-mpz_sign.c
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/usr/share/ada/adainclude/gnatcoll_gmp/gnatcoll-gmp.ads