Fix for r84195: add HAVE_ALLOCA_H to configure and only include alloca.h if it's available
diff --git a/configure b/configure
index ffa089c..a1b7bff 100755
--- a/configure
+++ b/configure
@@ -6928,7 +6928,7 @@
sys/stat.h sys/syscall.h sys/sys_domain.h sys/termio.h sys/time.h \
sys/times.h sys/types.h sys/uio.h sys/un.h sys/utsname.h sys/wait.h pty.h \
libutil.h sys/resource.h netpacket/packet.h sysexits.h bluetooth.h \
-bluetooth/bluetooth.h linux/tipc.h spawn.h util.h
+bluetooth/bluetooth.h linux/tipc.h spawn.h util.h alloca.h
do :
as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"