EFI bootloader often trys to build itself at installworld stage

Hello freebsd-current,

 Each other time "make installworld" from object directory created several hours ago
try to build efiloader again (and fails in my case as this world doesn't
contain compiler):

===> sys/boot/efi/loader (install)
cc -O2 -pipe   -fPIC -I/data/src/sys/boot/efi/loader -I/data/src/sys/boot/efi/loader/arch/amd64 -I/data/src/sys/boot/efi/loader/../include -I/data/src/sys/boot/efi/loader/../include/amd64 -I/data/src/sys/boot/efi/loader/../../../contrib/dev/acpica/include -I/data/src/sys/boot/efi/loader/../../.. -I/data/src/sys/boot/efi/loader/../../i386/libi386 -DNO_PCI -DEFI -DBOOT_FORTH -I/data/src/sys/boot/efi/loader/../../ficl -I/data/src/sys/boot/efi/loader/../../ficl/amd64 -DLOADER_DISK_SUPPORT -DLOADER_GPT_SUPPORT -DLOADER_MBR_SUPPORT -I/data/src/sys/boot/efi/loader/../../common -ffreestanding -Wformat -msoft-float -mno-mmx -mno-sse -mno-avx -fshort-wchar -mno-red-zone -mno-aes -std=gnu99   -Qunused-arguments -c /data/src/sys/boot/efi/loader/autoload.c -o autoload.o
/tmp/install.Ku58dvCm/sh: cc: not found

 Only LOCAL fileystems are in use, and computer has ntpd-synchronized clock.

 "installworld" right after "buildworld" works Ok, but if I need to
re-create same nanobsd image without changing world (and sources), its often
fails to perform "installworld" for second time at this exact point: efi/loader.

-- 
Best regards,
 Lev                          mailto:lev_at_FreeBSD.org