Issue related to C++ building

[Sivaprasad.pv]

Hi all,

I am quite new to gcc building.while building g++(cross compiler)for our 
target following error occurred.

gcc   -O -DIN_GCC -DCROSS_COMPILE  -W -Wall -Wwrite-strings 
-Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic 
-Wno-long-long   -DHAVE_CONFIG_H  -o Tcollect2 \
                collect2.o tlink.o intl.o version.o   
../libiberty/libiberty.a
../libiberty/libiberty.a(cp-demangle.o): In function `demangle_identifier':
cp-demangle.c:(.text+0xdc3): undefined reference to `_ctype_'
../libiberty/libiberty.a(cp-demangle.o): In function `cplus_demangle_v3':
cp-demangle.c:(.text+0x3758): undefined reference to `__getreent'
../libiberty/libiberty.a(cp-demangle.o): In function `java_demangle_v3':
cp-demangle.c:(.text+0x3817): undefined reference to `__getreent'
../libiberty/libiberty.a(cp-demangle.o): In function 
`demangle_v3_with_details':
cp-demangle.c:(.text+0x3995): undefined reference to `__getreent'
cp-demangle.c:(.text+0x39d5): undefined reference to `__getreent'
collect2: ld returned 1 exit status
make[1]: *** [collect2] Error 1
make[1]: Leaving directory 
`/work/ToolChain/sankhyagcc/quater4/final_c++/scripts/build-gcc/gcc'
make: *** [all-gcc] Error 2

I have configured the gcc as below.

$SRC/gcc-3.3/configure --prefix=$RELDIR --target=$TARGET 
--enable-languages=c++  --with-gnu-as --with-gnu-ld --without-headers 
--with-newlib --host=i686-pc-linux-gnu --with-dwarf2  
--enable-sjlj-exceptions  > $LOG 2>&1

I tried but i am unable to find out  definition of those symbols.please 
help me in this regard.

--P.V.Siva Prasad