/usr/lib/speech_tools/config/compilers/ is in libestools2.1-dev 1:2.1~release-6.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/speech_tools/config/compilers/Makefile
/usr/lib/speech_tools/config/compilers/egcs.mak
/usr/lib/speech_tools/config/compilers/gcc.mak
/usr/lib/speech_tools/config/compilers/gcc27.mak
/usr/lib/speech_tools/config/compilers/gcc27emx.mak
/usr/lib/speech_tools/config/compilers/gcc28.mak
/usr/lib/speech_tools/config/compilers/gcc295.mak
/usr/lib/speech_tools/config/compilers/gcc296.mak
/usr/lib/speech_tools/config/compilers/gcc30.mak
/usr/lib/speech_tools/config/compilers/gcc31.mak
/usr/lib/speech_tools/config/compilers/gcc32.mak
/usr/lib/speech_tools/config/compilers/gcc_defaults.mak
/usr/lib/speech_tools/config/compilers/intel80.mak
/usr/lib/speech_tools/config/compilers/jdk.mak
/usr/lib/speech_tools/config/compilers/jdk12.mak
/usr/lib/speech_tools/config/compilers/jdk_defaults.mak
/usr/lib/speech_tools/config/compilers/jikes.mak
/usr/lib/speech_tools/config/compilers/jikes_defaults.mak
/usr/lib/speech_tools/config/compilers/jolt.mak
/usr/lib/speech_tools/config/compilers/none.mak
/usr/lib/speech_tools/config/compilers/suncc.mak
/usr/lib/speech_tools/config/compilers/suncc40.mak
/usr/lib/speech_tools/config/compilers/suncc_defaults.mak