We have patched the build2-install-0.16.0.sh script to detect and diagnose ccache presence that is common on Fedora installations (for background, see[1]). The new SHA256 checksum: 4d2babfaff6d0412e0ab61a3d3c68a87de54c0779254d62f4569b44a56c6ea08 *build2-install-0.16.0.sh [1] https://github.com/build2/build2/issues/300