math/newmat: unbreak with clang 4.0

newmat6.cpp:431:13: error: ordered comparison between pointer and zero ('int *' and 'int')
   if (indx > 0) { delete [] indx; indx = 0; }
       ~~~~ ^ ~

Reported by:	antoine (via exp-run)

1 files changed, 11 insertions, 0 deletions

diff --git a/math/newmat/files/patch-newmat6.cpp b/math/newmat/files/patch-newmat6.cpp
new file mode 100644
index 000000000000..e5c31c9eb6d8
--- /dev/null
+++ b/math/newmat/files/patch-newmat6.cpp
@@ -0,0 +1,11 @@
+--- newmat6.cpp.orig	2006-09-09 12:51:25 UTC
++++ newmat6.cpp
+@@ -428,7 +428,7 @@ void CroutMatrix::operator=(const CroutM
+ {
+    if (&gm == this) { REPORT tag_val = -1; return; }
+    REPORT
+-   if (indx > 0) { delete [] indx; indx = 0; }
++   if (indx) { delete [] indx; indx = 0; }
+    ((CroutMatrix&)gm).get_aux(*this);
+    Eq(gm);
+ }