#include <string.h>
-#ifdef WIN32
-#include <windows.h>
-#endif
-
-#if !defined( WIN32 ) && !defined( __APPLE__ )
-#include <dlfcn.h>
-#endif
-
#include "extensions.hxx"
-bool SGSearchExtensionsString(char *extString, char *extName) {
+static bool SGSearchExtensionsString(char *extString, char *extName) {
// Returns GL_TRUE if the *extName string appears in the *extString string,
// surrounded by white spaces, or GL_FALSE otherwise.
char *p, *end;
int n, extNameLen;
+ if ((extString == NULL) || (extName == NULL))
+ return false;
+
extNameLen = strlen(extName);
p=extString;