sigblock causes setjmp longjmp botch on Ultrix 4.1

[Ian! D. Allen [CGL]]

/* This program causes a longjmp botch and core dump on
 * ULTRIX V4.1 (Rev. 52) on a DS5400.
 * Why?
 */
#include <setjmp.h>
main()
{
	static jmp_buf jbuf;

	sigblock(1<<31);
	setjmp(jbuf);
}
--
-IAN! (Ian! D. Allen) idallen at watcgl.uwaterloo.ca idallen at watcgl.waterloo.edu
 [129.97.128.64]  Computer Graphics Lab/University of Waterloo/Ontario/Canada