mac version of message stream is broken or incompatible and shouldn't be used...

mac version of message stream is broken or incompatible and shouldn't be used if this is not explicitly compile for 10.13 and newer

ShellB3/shallbethree.sh

@@ -3693,6 +3693,18 @@ mk_scipy() {
   _find_cots_lib LAPACK liblapack $BASE $COTS_HOME ${SYSROOT}/usr ||oops "scipy requires lapack"
 
   make_patch scipy <<PATCH
+diff -ru scipy/_lib/src/messagestream.h scipy/_lib/src/messagestream.h
+--- scipy/_lib/src/messagestream.h    2018-05-24 10:19:06.000000000 -0500
++++ scipy/_lib/src/messagestream.h        2018-05-05 09:07:41.000000000 -0500
+@@ -5,7 +5,7 @@
+ 
+ #include "messagestream_config.h"
+ 
+-#if HAVE_OPEN_MEMSTREAM
++#if HAVE_OPEN_MEMSTREAM && !defined(__APPLE__)
+ FILE *messagestream_open_memstream(char **ptr, size_t *sizeloc)
+ {
+     return open_memstream(ptr, sizeloc);
 diff -ru bscript bscript
 --- bscript 2016-10-30 03:37:33.000000000 -0500
 +++ bscript 2017-08-28 16:44:22.000000000 -0500