replaced use of _MAX_PATH with CCHMAXPATH in os/2 code,

it now compiles without HAVE_LIBC

include/SDL_config_os2.h

@@ -61,19 +61,20 @@
 
 #define HAVE_LIBC 1
 
+#define HAVE_STDARG_H 1
+#define HAVE_STDDEF_H 1
+#define HAVE_STDINT_H 1
+
 #define HAVE_SYS_TYPES_H 1
 #define HAVE_STDIO_H 1
 #define STDC_HEADERS 1
 #define HAVE_STDLIB_H 1
-#define HAVE_STDARG_H 1
-#define HAVE_STDDEF_H 1
 #define HAVE_MALLOC_H 1
 #define HAVE_MEMORY_H 1
 #define HAVE_STRING_H 1
 #define HAVE_STRINGS_H 1
 #define HAVE_WCHAR_H 1
 #define HAVE_INTTYPES_H 1
-#define HAVE_STDINT_H 1
 #define HAVE_LIMITS_H 1
 #define HAVE_CTYPE_H 1
 #define HAVE_MATH_H 1

src/filesystem/os2/SDL_sysfilesystem.c

@@ -25,9 +25,9 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 /* System dependent filesystem routines                                */
 
+#include "../../core/os2/SDL_os2.h"
 #include "SDL_error.h"
 #include "SDL_filesystem.h"
-#include "../../core/os2/SDL_os2.h"
 
 #define INCL_DOSFILEMGR
 #define INCL_DOSPROCESS
@@ -43,7 +43,7 @@ SDL_GetBasePath(void)
     ULONG   ulRC = DosGetInfoBlocks(&tib, &pib);
     PCHAR   pcEnd;
     ULONG   cbResult;
-    CHAR    acBuf[_MAX_PATH];
+    CHAR    acBuf[CCHMAXPATH];
 
     if (ulRC != NO_ERROR) {
         debug_os2("DosGetInfoBlocks() failed, rc = %u", ulRC);
@@ -73,7 +73,7 @@ char *
 SDL_GetPrefPath(const char *org, const char *app)
 {
     PSZ     pszPath;
-    CHAR    acBuf[_MAX_PATH];
+    CHAR    acBuf[CCHMAXPATH];
     int     lPosApp, lPosOrg;
     PSZ     pszApp, pszOrg;
 

src/video/os2/SDL_os2video.c

@@ -394,7 +394,7 @@ static MRESULT _wmDrop(WINDATA *pWinData, PDRAGINFO pDragInfo)
 {
     ULONG       ulIdx;
     PDRAGITEM   pDragItem;
-    CHAR        acFName[_MAX_PATH];
+    CHAR        acFName[CCHMAXPATH];
     PCHAR       pcFName;
 
     if (!DrgAccessDraginfo(pDragInfo))