-for ac_header in alloca.h paths.h syslog.h string.h unistd.h fcntl.h stdio.h limits.h
+for ac_header in alloca.h malloc.h paths.h syslog.h string.h unistd.h fcntl.h stdio.h limits.h
do
as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
if eval "test \"\${$as_ac_Header+set}\" = set"; then