#ifndef ISSUP_DEF
#define ISSUP_DEF

int IsExtSupported(const char *extension);


int IsExtSupported(const char *extension)
{
	GLubyte *extensions = NULL;
	const GLubyte *start;
	GLubyte *where, *terminator;

	where = (GLubyte *) strchr(extension, ' ');
	if (where || *extension == '\0')
		return 0;

	extensions = (GLubyte *)glGetString(GL_EXTENSIONS);

	start = extensions;
	for (;;) 
		{
		where = (GLubyte *) strstr((const char *) start, extension);

		if (!where)
			break;
    
		terminator = where + strlen(extension);
    
		if (where == start || *(where - 1) == ' ') 
			{
			if (*terminator == ' ' || *terminator == '\0') 
				return 1;
			}
		start = terminator;
		}

	return 0;
}



#endif