Explicitly remove -werror=implicit-interface flag.

[ajayrawat]

I'm using FPM in my project, which requires dispmodule. However, because of the -werror=implicit-interface flag, I'm not able to compile the code. I've used -flags to override the defaults, but still "-werror=implicit-interface" exists.

[trueprecision]

YES! This is a problem for me as well. Quite annoying. I don't understand why fpm doesn't respect FPM_FFLAGS settings. Back to using make...

[perazz]

#864

[fortran]
implicit-external=true

[trueprecision]

Thank you. I am now getting a clean compile.