crt1.o: In function `_start': undefined reference to `_init_tsl'

Hello,

I have upgraded to 5.3-Beta1 from CD.
I had removed /usr/src before upgrading.
Now building the kernel fails:

cc -O -pipe -nostdinc -I/usr/include -I.
-I/usr/src/sys/dev/aic7xxx/aicasm   -o aicasm aicasm.o aicasm_symbol.o aicasm_gram.o aicasm_macro_gram.o aicasm_scan.o aicasm_macro_scan.o -ll
/usr/lib/crt1.o(.text+0x64): In function `_start':
: undefined reference to `_init_tls'

Is it expected to build world first or to build a GENERIC kernel
first?

-Hanspeter