libraries/VTK: Patched for proj version 6

Signed-off-by: Christoph Willing <chris.willing@linux.com>

2 files changed, 120 insertions, 2 deletions

diff --git a/libraries/VTK/VTK.SlackBuild b/libraries/VTK/VTK.SlackBuild
index 7a216d4c0f3c..e9167ae916a8 100644
--- a/libraries/VTK/VTK.SlackBuild
+++ b/libraries/VTK/VTK.SlackBuild
@@ -28,7 +28,7 @@
 PRGNAM=VTK
 VERSION=${VERSION:-8.2.0}
 SHORT_VERSION=${SHORT_VERSION:-8.2}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 
 if [ -z "$ARCH" ]; then
@@ -70,7 +70,6 @@ wrap_python=""   ; [ "${PYTHON:-yes}" != "no" ]  && wrap_python="-DVTK_WRAP_PYTH
 wrap_java=""     ; [ "${JAVA:-no}" != "no" ]     && wrap_java="-DVTK_WRAP_JAVA=true"
 
 if pkg-config --exists jsoncpp ; then jsoncpp="-DVTK_USE_SYSTEM_JSONCPP:BOOL=ON" ; else jsoncpp="" ; fi
-if pkg-config --exists proj ; then proj="-DVTK_USE_SYSTEM_LIBPROJ:BOOL=ON" ; else proj="" ; fi
 
 # TODO: netcdf, hdf5, gl2ps
 #if test -e /usr/include/hdf5.h ; then hdf5="-DVTK_USE_SYSTEM_HDF5:BOOL=ON" ; else hdf5="" ; fi
@@ -97,6 +96,15 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
   -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
+if pkg-config --exists proj ; then
+  proj="-DVTK_USE_SYSTEM_LIBPROJ:BOOL=ON"
+  # proj6 patch courtesy of
+  # https://git.archlinux.org/svntogit/community.git/plain/trunk/proj6.patch?h=packages/vtk
+  patch -p1 < $CWD/patch-proj6.diff
+else
+  proj=""
+fi
+
 mkdir -p build
 cd build
   cmake \
diff --git a/libraries/VTK/patch-proj6.diff b/libraries/VTK/patch-proj6.diff
new file mode 100644
index 000000000000..3ae71acef7f7
--- /dev/null
+++ b/libraries/VTK/patch-proj6.diff
@@ -0,0 +1,110 @@
+diff --git a/Geovis/Core/vtkGeoProjection.cxx b/Geovis/Core/vtkGeoProjection.cxx
+index f3a8852d94..824060348a 100644
+--- a/Geovis/Core/vtkGeoProjection.cxx
++++ b/Geovis/Core/vtkGeoProjection.cxx
+@@ -72,6 +72,7 @@ public:
+   }
+ 
+   std::map< std::string, std::string > OptionalParameters;
++  PJ_PROJ_INFO ProjInfo;
+ };
+ 
+ //-----------------------------------------------------------------------------
+@@ -80,7 +83,7 @@ int vtkGeoProjection::GetNumberOfProjections()
+   if ( vtkGeoProjectionNumProj < 0 )
+   {
+     vtkGeoProjectionNumProj = 0;
+-    for ( const PJ_LIST* pj = pj_get_list_ref(); pj && pj->id; ++ pj )
++    for ( const PJ_LIST* pj = proj_list_operations(); pj && pj->id; ++ pj )
+       ++ vtkGeoProjectionNumProj;
+   }
+   return vtkGeoProjectionNumProj;
+@@ -91,7 +94,7 @@ const char* vtkGeoProjection::GetProjectionName( int projection )
+   if ( projection < 0 || projection >= vtkGeoProjection::GetNumberOfProjections() )
+     return nullptr;
+ 
+-  return pj_get_list_ref()[projection].id;
++  return proj_list_operations()[projection].id;
+ }
+ //-----------------------------------------------------------------------------
+ const char* vtkGeoProjection::GetProjectionDescription( int projection )
+@@ -99,7 +102,7 @@ const char* vtkGeoProjection::GetProjectionDescription( int projection )
+   if ( projection < 0 || projection >= vtkGeoProjection::GetNumberOfProjections() )
+     return nullptr;
+ 
+-  return pj_get_list_ref()[projection].descr[0];
++  return proj_list_operations()[projection].descr[0];
+ }
+ //-----------------------------------------------------------------------------
+ vtkGeoProjection::vtkGeoProjection()
+@@ -144,7 +147,7 @@ void vtkGeoProjection::PrintSelf( ostream& os, vtkIndent indent )
+ int vtkGeoProjection::GetIndex()
+ {
+   int i = 0;
+-  for ( const PJ_LIST* proj = pj_get_list_ref(); proj && proj->id; ++ proj, ++ i )
++  for ( const PJ_LIST* proj = proj_list_operations(); proj && proj->id; ++ proj, ++ i )
+   {
+     if ( ! strcmp( proj->id, this->Name ) )
+     {
+@@ -161,7 +164,7 @@ const char* vtkGeoProjection::GetDescription()
+   {
+     return nullptr;
+   }
+-  return this->Projection->descr;
++  return this->Internals->ProjInfo.description;
+ }
+ //-----------------------------------------------------------------------------
+ projPJ vtkGeoProjection::GetProjection()
+@@ -232,6 +239,7 @@ int vtkGeoProjection::UpdateProjection()
+   this->ProjectionMTime = this->GetMTime();
+   if ( this->Projection )
+   {
++    this->Internals->ProjInfo = proj_pj_info(this->Projection);
+     return 0;
+   }
+   return 1;
+diff --git a/Geovis/Core/vtkGeoTransform.cxx b/Geovis/Core/vtkGeoTransform.cxx
+index aeeabc1075..b80a8c010c 100644
+--- a/Geovis/Core/vtkGeoTransform.cxx
++++ b/Geovis/Core/vtkGeoTransform.cxx
+@@ -167,9 +167,9 @@ void vtkGeoTransform::InternalTransformPoints( double* x, vtkIdType numPts, int
+     double* coord = x;
+     for ( vtkIdType i = 0; i < numPts; ++ i )
+     {
+-      xy.u = coord[0]; xy.v = coord[1];
++      xy.x = coord[0]; xy.y = coord[1];
+       lp = pj_inv( xy, src );
+-      coord[0] = lp.u; coord[1] = lp.v;
++      coord[0] = lp.lam; coord[1] = lp.phi;
+       coord += stride;
+     }
+   }
+@@ -191,9 +199,9 @@ void vtkGeoTransform::InternalTransformPoints( double* x, vtkIdType numPts, int
+     double* coord = x;
+     for ( vtkIdType i = 0; i < numPts; ++ i )
+     {
+-      lp.u = coord[0]; lp.v = coord[1];
++      lp.lam = coord[0]; lp.phi = coord[1];
+       xy = pj_fwd( lp, dst );
+-      coord[0] = xy.u; coord[1] = xy.v;
++      coord[0] = xy.x; coord[1] = xy.y;
+       coord += stride;
+     }
+   }
+diff --git a/ThirdParty/libproj/vtk_libproj.h.in b/ThirdParty/libproj/vtk_libproj.h.in
+index d52db07a95..4d8ffc3c5d 100644
+--- a/ThirdParty/libproj/vtk_libproj.h.in
++++ b/ThirdParty/libproj/vtk_libproj.h.in
+@@ -18,7 +18,8 @@
+ /* Use the libproj library configured for VTK.  */
+ #cmakedefine VTK_USE_SYSTEM_LIBPROJ
+ #ifdef VTK_USE_SYSTEM_LIBPROJ
+-# include <projects.h>
++# include <proj.h>
++# define ACCEPT_USE_OF_DEPRECATED_PROJ_API_H 1
+ # include <proj_api.h>
+ # include <geodesic.h>
+ #else
+-- 
+2.21.0
+