[Discuss-gnuradio] autoconf 2.64 and mb-gcc

[Doug Geiger]

Just wanted to give other folks a heads up about a regression in 
autoconf 2.64 affected the configure script for usrp2-firmware. 
Basically the compiler test now includes stdio.h and fopen in the test 
program (instead of a simple empty main function). This breaks with my 
install of mb-gcc. I imagine there are other work-arounds, but I found 
this one on the autoconf mailing list 
(http://lists.gnu.org/archive/html/autoconf/2009-09/msg00114.html). Note 
the work-around has potential side-effects, but I was able to build the 
firmware without issues. Apparently this regression in autoconf is being 
addressed upstream.
FYI - Ubuntu 9.10 ships with autoconf 2.64, which is how I got bit by 
this one.
Doug

--
Douglas Geiger
Code 5545
U.S. Naval Research Laboratory
Washington, DC 20375
(202) 767-9048
address@hidden