file "drivers_for_poly_continuation.ads" not found

When attempting to run make testall in Debian unstable or Ubuntu 20.10, I get the following error while compiling ts_correct.adb:

x86_64-linux-gnu-gcc-10 -c -I./ -I../Ada/System -I../Ada/System/Unix_Timer -I../Ada/Math_Lib/Numbers -I../Ada/Math_Lib/QD -I../Ada/Math_Lib/Vectors -I../Ada/Math_Lib/Matrices -I../Ada/Math_Lib/Divisors -I../Ada/Math_Lib/Reduction -I../Ada/Math_Lib/Polynomials -I../Ada/Math_Lib/Functions -I../Ada/Math_Lib/Supports -I../Ada/Math_Lib/Circuits -I../Ada/Math_Lib/Series -I../Ada/Math_Lib/AD -I../Ada/Deformations/Solutions -I../Ada/Deformations/Homotopy -I../Ada/Deformations/Newton -I../Ada/Deformations/Curves -I../Ada/Deformations/End_Games -I../Ada/Deformations/Sweep -I../Ada/Deformations/Trackers -I../Ada/Deformations/Continuation -I../Ada/Root_Counts/Product -I../Ada/Root_Counts/Binomials -I../Ada/Root_Counts/Implift -I../Ada/Root_Counts/Stalift -I../Ada/Root_Counts/Dynlift -I../Ada/Root_Counts/Symmetry -I../Ada/Root_Counts/MixedVol -I../Ada/Root_Counts/DEMiCs -I../Ada/Root_Counts/Puiseux -I../Ada/Schubert/SAGBI -I../Ada/Schubert/Pieri -I../Ada/Schubert/Induction -I../Ada/Components/Samplers -I../Ada/Components/Interpolators -I../Ada/Components/Factorization -I../Ada/Components/Decomposition -I../Ada/Components/Solver -I../Ada/Components/Tropical -I../Ada/CtoPHC/Funky -I../Ada/CtoPHC/State -I../MPI -I../Ada/PHCtoC -I../Ada/Tasking -I../Ada/Main -gnatv -O3 -gnatp -gnatf -I- /builds/science-team/phcpack/debian/output/source_dir/src/Ada/Deformations/Trackers/ts_correct.adb
GNAT 10.2.1 20210110
Copyright 1992-2020, Free Software Foundation, Inc.
Compiling: /builds/science-team/phcpack/debian/output/source_dir/src/Ada/Deformations/Trackers/ts_correct.adb
Source file time stamp: 2020-12-15 20:45:49
Compiled at: 2021-02-23 11:45:55
    45. with Drivers_for_Poly_Continuation;     use Drivers_for_Poly_Continuation;
             |
        >>> file "drivers_for_poly_continuation.ads" not found
 453 lines: 1 error
gnatmake: "/builds/science-team/phcpack/debian/output/source_dir/src/Ada/Deformations/Trackers/ts_correct.adb" compilation error
make[3]: *** [makefile_unix:1154: ts_correct] Error 4

janverschelde / PHCpack

file "drivers_for_poly_continuation.ads" not found #41