[Haskell] error rebuilding ghc-6.4

[vadim]

Dear all,

when trying to rebuild ghc-6.4 from source, I fall into following error:


........
gcc -O -I../../includes -Wall    -c Shade.c -o Shade.o
gcc -O -I../../includes -Wall    -c TopTwenty.c -o TopTwenty.o
gcc -O -I../../includes -Wall    -c TraceElement.c -o TraceElement.o
gcc -O -I../../includes -Wall    -c Utilities.c -o Utilities.o
gcc -o hp2ps -O -I../../includes -Wall       AreaBelow.o AuxFile.o
Axes.o Curves.o Deviation.o DimensiDeviation.o(.text+0x316): In function
`Deviation':
: undefined reference to `sqrt'
collect2: ld returned 1 exit status
make[3]: *** [hp2ps] Error 1
make[2]: *** [all] Error 1
make[1]: *** [all] Error 1
make[1]: Leaving directory `/root/build/ghc-6.4/ghc'
make: *** [build] Error 1



When building, I followed recommendations from
http://www.haskell.org/ghc/docs/latest/html/building/sec-building-from-source.html

That said, I did:
autoreconf
./configure --prefix=/opt/ghc64
make

My OS is Linux, kernel 2.6.9
GCC version is 3.3.2
Perl version is 5.8.3

Could you please advice?

Thanks in advance,
Vadim.