/usr/share/aclocal/ is in libsidl-dev 1.4.0.dfsg-8build3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/aclocal/cca_bundle_tag.m4
/usr/share/aclocal/cca_diagnose.m4
/usr/share/aclocal/llnl_apple_restfp.m4
/usr/share/aclocal/llnl_c_inline.m4
/usr/share/aclocal/llnl_check_autoconf.m4
/usr/share/aclocal/llnl_check_automake.m4
/usr/share/aclocal/llnl_check_classpath.m4
/usr/share/aclocal/llnl_check_int32_t.m4
/usr/share/aclocal/llnl_check_int64_t.m4
/usr/share/aclocal/llnl_check_java_addclasspath_flag.m4
/usr/share/aclocal/llnl_check_long_long.m4
/usr/share/aclocal/llnl_confirm_babel_c_support.m4
/usr/share/aclocal/llnl_confirm_babel_cxx_support.m4
/usr/share/aclocal/llnl_confirm_babel_f77_support.m4
/usr/share/aclocal/llnl_confirm_babel_f90_support.m4
/usr/share/aclocal/llnl_confirm_babel_java_support.m4
/usr/share/aclocal/llnl_confirm_babel_java_support_runtime.m4
/usr/share/aclocal/llnl_confirm_babel_python_support.m4
/usr/share/aclocal/llnl_cross_compiling.m4
/usr/share/aclocal/llnl_cxx_library_ldflags.m4
/usr/share/aclocal/llnl_cxx_old_header_suffix.m4
/usr/share/aclocal/llnl_enable_regression.m4
/usr/share/aclocal/llnl_f77_c_config.m4
/usr/share/aclocal/llnl_f77_dummy_main.m4
/usr/share/aclocal/llnl_f77_library_ldflags.m4
/usr/share/aclocal/llnl_f77_name_mangling.m4
/usr/share/aclocal/llnl_f90_c_config.m4
/usr/share/aclocal/llnl_f90_library_ldflags.m4
/usr/share/aclocal/llnl_f90_name_mangling.m4
/usr/share/aclocal/llnl_f90_pointer_size.m4
/usr/share/aclocal/llnl_f90_volatile.m4
/usr/share/aclocal/llnl_find_32bit_signed_int.m4
/usr/share/aclocal/llnl_find_64bit_signed_int.m4
/usr/share/aclocal/llnl_fortran_logical_test.m4
/usr/share/aclocal/llnl_fortran_string_test.m4
/usr/share/aclocal/llnl_func_drand_fortyeight.m4
/usr/share/aclocal/llnl_lib_chasm.m4
/usr/share/aclocal/llnl_lib_fcmain.m4
/usr/share/aclocal/llnl_lib_fmain.m4
/usr/share/aclocal/llnl_libparsifal.m4
/usr/share/aclocal/llnl_libxml.m4
/usr/share/aclocal/llnl_prevent_cross_compilation.m4
/usr/share/aclocal/llnl_prevent_unholy_gnu_nongnu_mix.m4
/usr/share/aclocal/llnl_prog_jar.m4
/usr/share/aclocal/llnl_prog_java.m4
/usr/share/aclocal/llnl_prog_javah.m4
/usr/share/aclocal/llnl_prog_python.m4
/usr/share/aclocal/llnl_prog_test_ef.m4
/usr/share/aclocal/llnl_pure_static_runtime.m4
/usr/share/aclocal/llnl_python_aix.m4
/usr/share/aclocal/llnl_python_library.m4
/usr/share/aclocal/llnl_python_numeric.m4
/usr/share/aclocal/llnl_python_shared_library.m4
/usr/share/aclocal/llnl_sort_fclibs.m4
/usr/share/aclocal/llnl_sort_flibs.m4
/usr/share/aclocal/llnl_which_prog.m4