hcfpcimodem-1.10full: problems with hcfpciconfig & kernels 2.6.18, 2.6.19

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I've get hcfpcimodem-1.10full.tar.gz, unpack & install, but when I run
hcfpciconfig I get error:

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bas@home:~$ cat /tmp/hcfpciconfig-buildlog.txt

(cd /lib/modules/2.6.19.1-bas/build && make
"CNXT_KERNELSRC=/lib/modules/2.6.19.1-bas/build"
"M=/usr/lib/hcfpcimodem/modules" "CC=gcc" clean)
make[1]: Entering directory `/home/bas/linux-2.6.19.1'
make[1]: Leaving directory `/home/bas/linux-2.6.19.1'
rm -rf *.o GPL/*.o *.ko GPL/*.ko *.mod.c GPL/*.mod.c .*.cmd GPL/.*.cmd
.tmp_versions .tmp_versions
/lib/modules/2.6.19.1-bas/build/.tmp_versions/hcfpciosspec.mod
/lib/modules/2.6.19.1-bas/build/.tmp_versions/hcfpciserial.mod
/lib/modules/2.6.19.1-bas/build/.tmp_versions/hcfpciengine.mod
/lib/modules/2.6.19.1-bas/build/.tmp_versions/hcfpcihw.mod
Unable to determine version of kernel source directory
/lib/modules/2.6.19.1-bas/build
make: *** [check_kernelver] Error 1
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