When I use codeblocks to make a Fortran DLL, I see something like the following command (I deleted the directories to make it look simpler):
gfortran -Wall -DBUILD_DLL -g -c myMultiply.f90
My question is about the option -DBUILD_DLL. Is it an option of gfortran? I checked the web about the options of gfortran. It seems that -DBUILD_DLL is not listed. Is it something special from codeblocks?
Can someone tell me what it is? Thanks a lot.