Madeline is typically pronounced "MAD-uh-line" in my experience. I've never heard it another way.
Madeleine is pronounced "MAD-uh-len" in my experience.
I'd pronounce
Emmeline "EM-uh-leen" but I'd pronounce
Emmaline "EM-uh-line".
I wouldn't pronounce something that ended in '-line' as "
LIN".