I'm building the source from a package called OIS.
The package always installs in usr/local/include/OIS
I tried using the ./configure --includedir=/usr/local/include flag but it seems that only changes the prefix not the suffix (OIS).
I could just copy the files but I'm not sure if this would break anything in the header files.
Can someone guide me where I could possibly edit so that when I run make install it would install in /usr/local/include and not /usr/local/include/OIS?
The reason I want to do this is because all the header files have "file.h" when in fact they're in "OIS/file.h". I would have to change this in all the header files so I want to change the install directory to avoid doing that, and in the future in case there's an update to the source.

-Ito the compiler like you're supposed to... – Ignacio Vazquez-Abrams Nov 22 '10 at 7:20<package>-configscript or<package>.pcfile should direct the compiler as to what flags it should use. – Ignacio Vazquez-Abrams Nov 22 '10 at 7:32