rpmbuild failed for cmake version

+ cmake .. -DCMAKE_BUILD_TYPE=Release '-DLLVM_TARGETS_TO_BUILD=X86;BPF' -DCMAKE_INSTALL_PREFIX=/usr
CMake Error at CMakeLists.txt:3 (cmake_minimum_required):
CMake 3.4.3 or higher is required. You are running version 2.8.12.2

error: Bad exit status from /var/tmp/rpm-tmp.d9yTov (%build)
Bad exit status from /var/tmp/rpm-tmp.d9yTov (%build)

SPECS/bcc+clang.spec using cmake, however, bcc project building with cmake3 check failed.

Just replace cmake with cmake3

Start with SPECS/bcc+clang.spec and inspect the CMake command used by the RPM build. Verify the build uses cmake3 rather than cmake, then run the RPM build; it is done when the CMake minimum-version check passes without the reported build failure.

Written by the indexing model from the issue text.