paraview: fixes and patchs but still fails to build

This is more of a WIP of required patches and C{,XX}FLAGS because
it still fails to build for x86_64-musl and i686.

srcpkgs/paraview/patches/fix-page_size-macro.patch

@@ -0,0 +1,13 @@
+--- Plugins/Datamine/Readers/dmfile.cxx	2020-08-04 22:12:01.000000000 +0200
++++ Plugins/Datamine/Readers/dmfile.cxx	2020-08-30 13:22:12.387889301 +0200
+@@ -421,8 +421,8 @@
+ 
+   // number of records per page
+   // There is only 508 bytes per page ( table is 512 with 4 reserved )
+-  const int PAGE_SIZE = 508;
+-  int numRecsPerPage = PAGE_SIZE / recordLength;
++  const int DM_PAGE_SIZE = 508;
++  int numRecsPerPage = DM_PAGE_SIZE / recordLength;
+ 
+   // number of record on last page
+   int numRecsLastPage = GetNLastPageRecs();

srcpkgs/paraview/patches/fix-vtksys-execinfo.patch

@@ -0,0 +1,12 @@
+--- VTK/Utilities/KWSys/vtksys/CMakeLists.txt	2020-08-30 14:24:27.200081977 +0200
++++ VTK/Utilities/KWSys/vtksys/CMakeLists.txt	2020-08-30 14:26:38.533088752 +0200
+@@ -592,7 +592,8 @@
+     # check for simple stack trace
+     # usually it's in libc but on FreeBSD
+     # it's in libexecinfo
+-    FIND_LIBRARY(EXECINFO_LIB "execinfo")
++    FIND_PACKAGE(PkgConfig REQUIRED)
++    PKG_CHECK_MODULES(EXECINFO IMPORTED_TARGET libexecinfo)
+     MARK_AS_ADVANCED(EXECINFO_LIB)
+     IF (NOT EXECINFO_LIB)
+       SET(EXECINFO_LIB "")

srcpkgs/paraview/patches/vtk-isnan.patch

@@ -0,0 +1,45 @@
+--- VTK/Common/Core/vtkGenericDataArrayLookupHelper.h	2020-08-04 22:12:01.000000000 +0200
++++ VTK/Common/Core/vtkGenericDataArrayLookupHelper.h	2020-08-29 22:33:06.824012475 +0200
+@@ -36,20 +36,20 @@
+ template <typename T>
+ struct has_NaN<T, true>
+ {
+-  static bool isnan(T x) { return std::isnan(x); }
++  static bool vtkisnan(T x) { return std::isnan(x); }
+ };
+ 
+ template <typename T>
+ struct has_NaN<T, false>
+ {
+-  static bool isnan(T) { return false; }
++  static bool vtkisnan(T) { return false; }
+ };
+ 
+ template <typename T>
+-bool isnan(T x)
++bool vtkisnan(T x)
+ {
+   // Select the correct partially specialized type.
+-  return has_NaN<T, std::numeric_limits<T>::has_quiet_NaN>::isnan(x);
++  return has_NaN<T, std::numeric_limits<T>::has_quiet_NaN>::vtkisnan(x);
+ }
+ } // namespace detail
+ 
+@@ -127,7 +127,7 @@
+     for (vtkIdType i = 0; i < num; ++i)
+     {
+       auto value = this->AssociatedArray->GetValue(i);
+-      if (::detail::isnan(value))
++      if (::detail::vtkisnan(value))
+       {
+         NanIndices.push_back(i);
+       }
+@@ -140,7 +140,7 @@
+   std::vector<vtkIdType>* FindIndexVec(ValueType value)
+   {
+     std::vector<vtkIdType>* indices{ nullptr };
+-    if (::detail::isnan(value) && !this->NanIndices.empty())
++    if (::detail::vtkisnan(value) && !this->NanIndices.empty())
+     {
+       indices = &this->NanIndices;
+     }

srcpkgs/paraview/template

@@ -4,7 +4,8 @@ version=5.8.1
 revision=1
 wrksrc=ParaView-v${version}
 build_style=cmake
-configure_args="-DPARAVIEW_ENABLE_FFMPEG=ON
+configure_args="-DCMAKE_PREFIX_PATH=${XBPS_CROSS_BASE}/usr
+ -DPARAVIEW_ENABLE_FFMPEG=ON
  -DPARAVIEW_ENABLE_GDAL=ON
  -DPARAVIEW_USE_PYTHON=ON
  -DPARAVIEW_USE_MPI=ON
@@ -14,6 +15,8 @@ configure_args="-DPARAVIEW_ENABLE_FFMPEG=ON
  -DVTKm_ENABLE_MPI=ON
  -DVTKm_ENABLE_RENDERING=ON
  -DVTKm_USE_DOUBLE_PRECISION=ON"
+#make_build_args="VERBOSE=1"
+hostmakedepends="pkg-config which"
 makedepends="MesaLib-devel libfreeglut-devel glu-devel libXt-devel
  openmpi-devel qt5-devel qt5-x11extras-devel qt5-tools-devel qt5-plugin-mysql
  qt5-plugin-odbc qt5-plugin-pgsql qt5-plugin-sqlite qt5-plugin-tds
@@ -30,9 +33,8 @@ license="BSD-3-Clause"
 homepage="https://www.paraview.org"
 distfiles="https://www.paraview.org/paraview-downloads/download.php?submit=Download&version=v${version:0:3}&type=source&os=Sources&downloadFile=ParaView-v${version}.tar.xz>paraview-${version}.tar.xz"
 checksum=7653950392a0d7c0287c26f1d3a25cdbaa11baa7524b0af0e6a1a0d7d487d034
-patch_args="-Np1"
-CFLAGS="-D_GNU_SOURCE -fcommon"
-CXXFLAGS="-D_GNU_SOURCE -fcommon"
+CFLAGS="-DYYERROR_VERBOSE -D_LARGEFILE64_SOURCE=1 -D_FILE_OFFSET_BITS=64 -DGNU_SOURCE -fcommon"
+CXXFLAGS="${CFLAGS}"
 
 # qhelpgenerator: could not find a Qt installation of ''
 export QT_SELECT="5"