[Sdl4fp-users] fpc -gh -gc causes invalid read error

[James W. H. <jho...@uc...>]

With the two above debug options demo02 and demo03 of 
sdl4fpc 1.2.0.0 crash
on FPC 2.0.0/Linux and FPC 2.0.4/Win32:

(these crash reports also used -gl to get a line number)

pointer $0808C0F0 does not point to valid memory block
                                                       No
heap dump by heaptrc unit
Exitcode = 204
Runtime error 204 at $0805E365
   $0805E365
   $08049506  main,  line 95 of demo02.pp

pointer $0808BFA0 does not point to valid memory block
                                                       No
heap dump by heaptrc unit
Exitcode = 204
Runtime error 204 at $0805E95D
   $0805E95D
   $080492AB  RENDER_BALL,  line 95 of demo03.pp
   $080497DF  main,  line 180 of demo03.pp

The culprit in the cases I've looked it is 
SDL_CreateRGBSurface, but there may be more functions 
causing this kind of error. These seem to be "harmless" 
memory errors, since the program works fine - I suspect 
what is being detected as a leak is probably just 
allocations from the C code - but it gets in the way of 
finding errors in my own program. Can it be fixed? I'm 
going to start looking...