Your header paths imply that they are a in a sub directory of your current directory.
Is that true?
In other words, if your current directory is
*/foo , the program will look for those headers in */foo/SDL
Otherwise the path is incomplete and/or incorrect.

From what you posted , I suspect that htses files may not exisit or are not where the program is looking for them.


do a dbupdate command (HD will churn for a few minutes) then type
locate SDL.h
This will return the path to that header if it exists.