Any help would appreciated as linux-headers common are not built in reiser4 custom kernel build:
make[7]: Leaving directory '/usr/src/build/kernel/build/linux/tools/build' /usr/bin/make FIXDEP=1 -f Makefile.perf make[7]: Entering directory '/usr/src/build/kernel/build/linux/tools/perf' Auto-detecting system features: ... dwarf: [ ^[[32mon^[[m ] ... dwarf_getlocations: [ ^[[32mon^[[m ] ... glibc: [ ^[[32mon^[[m ] ... gtk2: [ ^[[32mon^[[m ] ... libaudit: [ ^[[32mon^[[m ] ... libbfd: [ ^[[31mOFF^[[m ] ... libelf: [ ^[[32mon^[[m ] ... libnuma: [ ^[[32mon^[[m ] ... numa_num_possible_cpus: [ ^[[32mon^[[m ] ... libperl: [ ^[[32mon^[[m ] ... libpython: [ ^[[32mon^[[m ] ... libslang: [ ^[[32mon^[[m ] ... libcrypto: [ ^[[32mon^[[m ] ... libunwind: [ ^[[32mon^[[m ] ... libdw-dwarf-unwind: [ ^[[32mon^[[m ] ... zlib: [ ^[[32mon^[[m ] ... lzma: [ ^[[32mon^[[m ] ... get_cpuid: [ ^[[32mon^[[m ] ... bpf: [ ^[[31mOFF^[[m ] Makefile.config:456: BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled. Best Professional Regards.