Merge remote-tracking branch 'origin/fix-cmake-check-netcdf-par-heade…

…r' into feature-CMake_CI_2

CMakeLists.txt

@@ -77,6 +77,7 @@ if( T8CODE_ENABLE_NETCDF )
     find_package( netCDF REQUIRED )
     if(netCDF_FOUND)
         message("Found netCDF")
+        include(cmake/CheckNetCDFPar.cmake)
     endif (netCDF_FOUND)
 endif( T8CODE_ENABLE_NETCDF )
 

cmake/CheckNetCDFPar.cmake

@@ -0,0 +1,17 @@
+include( CheckCSourceCompiles )
+function( check_netcdf_par )
+  set( CMAKE_REQUIRED_LIBRARIES netCDF::netcdf )
+
+  check_c_source_compiles(
+    "
+        #include <netcdf.h>
+        #include <netcdf_par.h>
+
+        int main() {
+          return 0;
+        }
+    "
+    NETCDF_HAVE_NETCDF_PAR)
+endfunction()
+
+check_netcdf_par()

src/CMakeLists.txt

@@ -29,7 +29,7 @@ if( T8CODE_ENABLE_NETCDF )
   target_link_libraries( T8 PUBLIC netCDF::netcdf )
   target_compile_definitions(T8 PUBLIC
     T8_WITH_NETCDF
-    $<$<BOOL:${T8CODE_ENABLE_MPI}>:T8_WITH_NETCDF_PAR> )
+    $<$<AND:$<BOOL:${NETCDF_HAVE_NETCDF_PAR}>,$<BOOL:${T8CODE_ENABLE_MPI}>>:T8_WITH_NETCDF_PAR> )
 endif()
 
 set_target_properties( T8 PROPERTIES OUTPUT_NAME t8 )