How about this patch for the autobuild script? It would provide slightly more
information at the top of the logfile:
testcurl: STARTING HERE
testcurl: NAME = Tor Arntsen
testcurl: EMAIL = notused_at_arntsen.cx
testcurl: DESC = IRIX 6.5.22 gcc 3.3
testcurl: CONFOPTS = --without-ssl --enable-debug --disable-ipv6
testcurl: CFLAGS =
testcurl: CC = gcc
testcurl: version = $Revision: 1.34 $
testcurl: date = Mon Feb 23 16:22:33 GMT 2004
testcurl: curl is verified to be a fine source dir
testcurl: build dir build-3540362 was created fine
testcurl: update from CVS
testcurl: run cvs up
 
(the extra CFLAGS and CC lines)

It's quite common to run with e.g. CC=cc CFLAGS=-fullwarn ./configure
in case you want to be specific with which compiler you run and so on.
(For the autobuilds you would set the environment variables elsewhere,
e.g. in the setup file. Anyway the below patch would catch them.)

-Tor

---
Index: testcurl.sh
===================================================================
RCS file: /repository/curl/testcurl.sh,v
retrieving revision 1.34
diff -u -r1.34 testcurl.sh
--- testcurl.sh	23 Feb 2004 07:32:45 -0000	1.34
+++ testcurl.sh	23 Feb 2004 16:23:34 -0000
@@ -132,6 +132,8 @@
 log "EMAIL = $email"
 log "DESC = $desc"
 log "CONFOPTS = $confopts"
+log "CFLAGS = $CFLAGS"
+log "CC = $CC"
 log "version = $version"
 log "date = `date -u`"