debian/changelog

+proj (5.0.0-3~exp2) experimental; urgency=medium
+
+  * Add patch to fix height_unit() in proj_transform.c.
+
+ -- Bas Couwenberg <sebastic@debian.org>  Fri, 09 Mar 2018 12:20:41 +0100
+
 proj (5.0.0-3~exp1) experimental; urgency=medium
 
   * Add upstream patches to fix regressions in 5.0.0:

debian/patches/pj_transform-height_unit.patch

+Description: Fix height_unit() in proj_transform.c.
+Author: Bas Couwenberg <sebastic@debian.org>
+Forwarded: https://github.com/OSGeo/proj.4/pull/845#issuecomment-371785556
+
+--- a/src/pj_transform.c
++++ b/src/pj_transform.c
+@@ -397,7 +397,10 @@ static int height_unit (PJ *P, PJ_DIRECT
+         fac = P->vfr_meter;
+ 
+     /* Nothing to do? */
+-    if (P->vto_meter==0.0)
++    if (fac == 1.0)
++        return 0;
++
++    if (z == NULL)
+         return 0;
+ 
+     for (i = 0;  i < n;  i++)

debian/patches/series

 0001-Revert-fix-to-22.patch
 pr845_Refactor-pj_transform-reintroduce-support-for-vertical-scaling.patch
+pj_transform-height_unit.patch