There is a bug with the PKGFILE which is too aggressive copying files with names containing Kconfig. Consequence is upon install attempt: error: failed to commit transaction (conflicting files) /usr/lib/modules/4.4.0-1-ARCH/build/Documentation/kbuild/Kconfig.recursion-issue-01 exists in both 'linux-docs' and 'linux-headers' /usr/lib/modules/4.4.0-1-ARCH/build/Documentation/kbuild/Kconfig.recursion-issue-02 exists in both 'linux-docs' and 'linux-headers' /usr/lib/modules/4.4.0-1-ARCH/build/Documentation/kbuild/Kconfig.select-break exists in both 'linux-docs' and 'linux-headers' Errors occurred, no packages were upgraded. A "dumb" fix is to remove the duplicate by adding a line to PKGFILE something like: rm "${pkgdir}/usr/lib/modules/${_kernver}/build/Documentation/kbuild"/Kconfig.*-* gene