[petsc-dev] BlasLapack: does f2c and mangling=='underscore' occur?

[Jed Brown]

I'm trying to understand the logic behind this sequence to append the
underscore before self.libraries.check

        prefix = self.getPrefix()
        if self.f2c:
          if self.mangling == 'underscore':
            routine = prefix+baseName+'_'
          else:
            routine = prefix+baseName
        else:
          routine = prefix+baseName

https://bitbucket.org/petsc/petsc/src/7a2b0e13c17634dbfc357d19b73eb2e60349bceb/config/BuildSystem/config/packages/BlasLapack.py?at=master#cl-517


versus the several other places that simply use

  self.getPrefix()+routine

If it's working now, it seems like the condition

  self.fc2 and self.mangling == 'underscore'

does not occur, in which case we could simplify the code.  Is that
indeed the case?