Added --enable-default-pie to gcc configure command.
This argument should match the system installed gcc default settings.
Otherwise built ghdl runned linker errors.
To know system gcc settings, run: gcc -v
../configure --with-gcc=../../gcc-10.3.0 --prefix=/usr/local/ghdl
make copy-sources
mkdir gcc-objs; cd gcc-objs
-../../../gcc-10.3.0/configure --prefix=/usr/local/ghdl --enable-languages=c,vhdl --disable-bootstrap --disable-lto --disable-multilib --disable-libssp --disable-libgomp --disable-libquadmath
+../../../gcc-10.3.0/configure --prefix=/usr/local/ghdl --enable-languages=c,vhdl --disable-bootstrap --disable-lto --disable-multilib --disable-libssp --disable-libgomp --disable-libquadmath --enable-default-pie
make -j$(nproc)
make install
cd ..