Setup:
Host: MacOS Mojave
Guest: Centos 7 kernel Linux 3.10.0-10621.1.2.el7.x86_64
VBox: 6.0.12 with Extensions Pack 6.0.12 installed
VM display setup: Video memory 128MB, Screens 2, Graphics controller VBoxVGA
VM System setup: Base memory: 8G, Chipset PIIX3, Enable I/O APIC, 4 CPU, Enable PAE/NX
Full log file is attached. This worked fine on kernel 957 so I assume this is an incompatibility between the 1062 kernel and 6.0.12 guest additions.Building the main Guest Additions 6.0.12 module for kernel 3.10.0-1062.1.1.el7.x86_64. Building the shared folder support module. Building the graphics driver module. Error building the module. Build output follows. make V=1 CONFIG_MODULE_SIG= -C /lib/modules/3.10.0-1062.1.1.el7.x86_64/build M=/tmp/vbox.0 SRCROOT=/tmp/vbox.0 -j4 modules make[1]: warning: -jN forced in submake: disabling jobserver mode. test -e include/generated/autoconf.h -a -e include/config/auto.conf || ( \ echo >&2; \ echo >&2 " ERROR: Kernel configuration is invalid."; \ echo >&2 " include/generated/autoconf.h or include/config/auto.conf are missing.";\ echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it.";