Undefined reference to WinMain in Cygwin

Question

I am trying to compile and having following problem

$ gcc errlib.c -o errlib.o

/usr/lib/gcc/x86_64-pc-cygwin/4.8.2/../../../../lib/libcygwin.a(libcmain.o):          


        

Answer 1

Use -c compile flag to only produce object file. Without -c it tries to link an executable and the linker (called automatically) fails.