I'm glad to see this point being made because it covers exactly what worried me when I first saw this C++ modules specification. At work, I maintain the build s

I'm glad to see this point being made because it covers exactly what worried me when I first saw this C++ modules specification. At work, I maintain the build system for some mixed C++ and Fortran 90 code and prepocessor includes really are a case of worse is better in my view. Generating build dependencies for Fortran 90 modules is a horrible mess and can easily get broken. And I can't really see that modules solve many real problems.