The dread -lcrt0.o error on Mac OS X

I periodically run into this problem compiling software on the mac:

 ld_classic: can't locate file for: -lcrt0.o
 collect2: ld returned 1 exit status
 make: *** [muscle] Error 1

In this case, I was compiling MUSCLE, a multiple alignment program.

The solution is to track the -static flag down in your Makefile, and remove it. GCC/OSX does NOT like -static.