ca@ca-laptop:~/FlightGear-1.0.0/fgfs$ strace -fF -eopen make 2>&1|grep SDL\.h
[pid 16219] open("/usr/local/include/plib/puSDL.h", O_RDONLY|O_NOCTTY) = 4
[pid 16219] open("/usr/local/include/plib/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16219] open("./SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16219] open("../../src/Include/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16219] open("../../SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16219] open("../../src/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16219] open("/home/ca/FlightGear-1.0.0/sg/include/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16219] open("/home/ca/FlightGear-1.0.0/sg/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16219] open("/usr/include/c++/4.1.3/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16219] open("/usr/include/c++/4.1.3/i486-linux-gnu/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16219] open("/usr/include/c++/4.1.3/backward/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16219] open("/usr/local/include/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16219] open("/usr/lib/gcc/i486-linux-gnu/4.1.3/include/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16219] open("/usr/include/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
/usr/local/include/plib/puSDL.h:32:17: error: SDL.h: No such file or directory
/usr/local/include/plib/puSDL.h: In function ‘void puGetWindowSizeSDL(int*, int*)’:
/usr/local/include/plib/puSDL.h:42: error: ‘SDL_Surface’ was not declared in this scope
/usr/local/include/plib/puSDL.h:42: error: ‘display’ was not declared in this scope
/usr/local/include/plib/puSDL.h:42: error: ‘SDL_GetVideoSurface’ was not declared in this scope
ca@ca-laptop:~/FlightGear-1.0.0/fgfs$ strace -fF -eopen make 2>&1|grep SDL\.h
[pid 16265] open("/usr/local/include/plib/puSDL.h", O_RDONLY|O_NOCTTY) = 4
[pid 16265] open("/usr/local/include/plib/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16265] open("./SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16265] open("../../src/Include/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16265] open("../../SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16265] open("../../src/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16265] open("/home/ca/FlightGear-1.0.0/sg/include/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16265] open("/home/ca/FlightGear-1.0.0/sg/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16265] open("/usr/include/c++/4.1.3/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16265] open("/usr/include/c++/4.1.3/i486-linux-gnu/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16265] open("/usr/include/c++/4.1.3/backward/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16265] open("/usr/local/include/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16265] open("/usr/lib/gcc/i486-linux-gnu/4.1.3/include/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
[pid 16265] open("/usr/include/SDL.h", O_RDONLY|O_NOCTTY) = -1 ENOENT (No such file or directory)
/usr/local/include/plib/puSDL.h:32:17: error: SDL.h: No such file or directory
/usr/local/include/plib/puSDL.h: In function ‘void puGetWindowSizeSDL(int*, int*)’:
/usr/local/include/plib/puSDL.h:42: error: ‘SDL_Surface’ was not declared in this scope
/usr/local/include/plib/puSDL.h:42: error: ‘display’ was not declared in this scope
/usr/local/include/plib/puSDL.h:42: error: ‘SDL_GetVideoSurface’ was not declared in this scope