field@pitt.UUCP (Gus) (09/28/89)
I am trying to bring bash up on our VAX 11/780 (running 4.3 BSD), and I get the following from cc: "execute_cmd.c", line 431: compiler error: schain botch Anyone know what might be the cause of this. Line 431 is a closing parenthesis to a function. The same source came up fine under Sun OS 4.0. Thanks Brian field@cs.pitt.edu
chris@mimsy.UUCP (Chris Torek) (10/01/89)
This is an old bug. Here is the recommended fix.
(Incidentally, this bug usually only surfaces when a function contains a
number of `goto' statements. Fuel for comp.lang.c.noise.about.goto :-) )
------- pftn.c -------
***************
*** 1922,1926 ****
p = clist;
while( p ){
! register struct symtab *r, *next;
q = p;
--- 1926,1930 ----
p = clist;
while( p ){
! register struct symtab *next, **t, *r;
q = p;
***************
*** 1930,1933 ****
--- 1934,1945 ----
if( q == p || q->stype == TNULL )break;
if( (r = relook(q)) != q ) {
+ /* move q in schain list */
+ t = &schain[q->slevel];
+ while( *t && *t != q )
+ t = &(*t)->snext;
+ if( *t )
+ *t = r;
+ else
+ cerror("schain botch 2");
*r = *q;
q->stype = TNULL;
--
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7163)
Domain: chris@cs.umd.edu Path: uunet!mimsy!chris