Probable bugs in egcs-19981220 and autoconf 2.12

[N8TM@aol.com]

In a message dated 12/22/98 3:57:22 AM Pacific Standard Time,
bagnara@di.unipi.it writes:

<< I discovered the following while using autoconf 2.12
 together with egcs-19981220/g++. Autoconf uses the following
 program to check whether the C++ compiler works:
 
 #line 894 "configure"
 #include "confdefs.h"
 main(){return(0);}
 
 If the -Wall option is used, then egcs-19981220 rejects it >>
This could be useful information.  egcs expects a newer version of autoconf,
but I have had to fall back on autoconf 2.12 for systems where the newer
version refuses to install.  Maybe this change and the change of the version
report are all that are required.  However, this test string appears on first
glance to appear in acspecific.m4.