Fresh people's build problem

Hello guys: In order to participate in OSMOCOM-BB project, I have buy the old moto C118 and made the T191 cable by myself. But when I run "make" in ****/src/osmocom-bb/src directory, the error info is below: alexander@Foundation:~/src/osmocom-bb/src$ make cd shared/libosmocore/build-target && ../configure \ --host=arm-elf-linux --disable-vty --enable-panic-infloop \ --disable-shared --disable-talloc --disable-tests \ CC="arm-elf-gcc" CFLAGS="-Os -ffunction-sections -I../../../../target/firmware/include" configure: WARNING: If you wanted to set the --build type, don't use --host. If a cross compiler is detected then cross compile mode will be used. checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for arm-elf-linux-strip... no checking for strip... strip checking for a thread-safe mkdir -p... /bin/mkdir -p checking for gawk... gawk checking whether make sets $(MAKE)... yes checking whether make sets $(MAKE)... (cached) yes checking for arm-elf-linux-gcc... arm-elf-gcc checking whether the C compiler works... no configure: error: in `/home/alexander/src/osmocom-bb/src/shared/libosmocore/build-target': configure: error: C compiler cannot create executables See `config.log' for more details. make: *** [shared/libosmocore/build-target/Makefile] Error 77 After my investigating on this issue, I think I must build my own arm-elf-linux-gcc, am I right? I want to know how the experienced person handle this scenario? Please answer my questions! Thanks! alexander Xu