Hello World C++ doesnt work but C works?

Trying to create a simple C++ hello world, but is getting this error when linking. Of course, changing the file name to .c as opposed to .cpp would solve the problem, but how come C++ dont get no love? =p

#include <stdio.h>
int main(void)
{
    printf("Short size: %d", (unsigned long) sizeof(short));
     
    return 0; 
}

make -k all 
  no emulation specific options.
nios2-elf-g++  -nostdinc -D__linux__ -O0 -g  -I"c:/altera/kits/nios2_51/bin/eclipse/plugins/com.microtronix.nios2linux.uClibc_1.4.0"/include -I/cygdrive/c/altera/kits/nios2_51/bin/nios2-gnutools/H-i686-pc-cygwin/bin/../lib/gcc/nios2-elf/3.4.1/include -fno-optimize-sibling-calls -mhw-mul -mhw-mulx -Wall -o main.o main.cpp
main.cpp: In function `int main()':
main.cpp:5: warning: int format, long unsigned int arg (arg 2)
nios2-elf-gcc -msys-crt0="c:/altera/kits/nios2_51/bin/eclipse/plugins/com.microtronix.nios2linux.uClibc_1.4.0"/lib/crt0.o -r -d -L"c:/altera/kits/nios2_51/bin/eclipse/plugins/com.microtronix.nios2linux.uClibc_1.4.0"/lib -o main.bin main.o "c:/altera/kits/nios2_51/bin/eclipse/plugins/com.microtronix.nios2linux.uClibc_1.4.0"/lib/libm.a /cygdrive/c/altera/kits/nios2_51/bin/nios2-gnutools/H-i686-pc-cygwin/bin/../lib/gcc/nios2-elf/3.4.1/libgcc.a "c:/altera/kits/nios2_51/bin/eclipse/plugins/com.microtronix.nios2linux.uClibc_1.4.0"/lib/libc.a
main.o(.text+0x0): In function `_start':
: multiple definition of `_start'
c:/altera/kits/nios2_51/bin/eclipse/plugins/com.microtronix.nios2linux.uClibc_1.4.0/lib/crt0.o(.text+0x0): first defined here
collect2: ld returned 1 exit status
make: ***  Error 1
make: Target `all' not remade because of errors.
rm main.o