2007-01-03  Paul Smith  <psmith@gnu.org>

	* make.h (ENULLLOOP): Reset errno after each failed invocation of
	the function, not just the first.  Fixes Savannah bug #18680.

--- make-3.81/make.h
+++ make-3.81/make.h
@@ -606,6 +606,6 @@ extern int handling_fatal_signal;
    NULL at the end of the directory--and _doesn't_ reset errno.  So, we have
    to do it ourselves here.  */
 
-#define ENULLLOOP(_v,_c)   do{ errno = 0; \
-                               while (((_v)=_c)==0 && errno==EINTR); }while(0)
+#define ENULLLOOP(_v,_c)   do { errno = 0; (_v) = _c; } \
+                           while((_v)==0 && errno==EINTR)