Ada isn't case sensitive and there may be some variables of correct name which have incorrect case. How is this handled with case sensitive C? Does the capitalization of the declaration take precedence?

Ada C/C++ Changer has several different options. The default is to canonicalize the spelling so the first letter is capitalized and the others are lower case in the generated C source code. Ada C/C++ Changer can also use the spelling from the declaration in all cases. It can all use all lower case in the generated C.