Date: Wed, 01 Mar 2006 10:14:31 +0000 From: "alan buckley" Subject: Re: Updating SDL for RISC OS I've attached a zip file with three diffs to get SDL to build on RISC OS. configure.in.diff and makedeps.sh.diff have been modified so that they can build the assembler file in video/riscos. You may want to double check these as I don't know a lot about unix shell programming. (I've tested them cross-compiling on cygwin). sdlsysthread.diff is the changes required to SDL_systhread.c for RISC OS. As you suspected with these changes in place you can delete the RISC OS specific threading code in thread/riscos. I've also renamed SDL_riscosASM.s to SDL_riscosASM.S, but I'm never quite sure how to rename files in CVS, so if you could to this it would be appreciated.

/* win_ce_semaphore.h - header file to go with win_ce_semaphore.c */

typedef struct _SYNCH_HANDLE_STRUCTURE {
   HANDLE hEvent;
   HANDLE hMutex;
   HANDLE hSemph;
   LONG MaxCount;
   volatile LONG CurCount;
   LPCTSTR lpName;
} SYNCH_HANDLE_STRUCTURE, *SYNCHHANDLE;

#define SYNCH_HANDLE_SIZE sizeof (SYNCH_HANDLE_STRUCTURE)

        /* Error codes - all must have bit 29 set */
#define SYNCH_ERROR 0X20000000   /* EXERCISE - REFINE THE ERROR NUMBERS */

extern SYNCHHANDLE CreateSemaphoreCE (LPSECURITY_ATTRIBUTES, LONG, LONG, LPCTSTR);

extern BOOL ReleaseSemaphoreCE (SYNCHHANDLE, LONG, LPLONG);
extern DWORD WaitForSemaphoreCE (SYNCHHANDLE, DWORD);

extern BOOL CloseSynchHandle (SYNCHHANDLE);