The source project of this merge request has been removed.
Make Clang happy
When testing GooString changes using GCC and Clang, I noticed that Clang 7 still has some issues without build and this fixes some of them. It also removes using #pragma interface/implementation which is not recommended as per the GCC documentation. (Clang 7 is still rather unhappy after this, but this seems to be only -Wcast-align and considering Poppler's usage of pointer casts, it should probably be disabled for now?)