From: Paul Zander <negril.nx+gentoo@gmail.com>
Subject: [PATCH] Build against Qt6

diff --git a/external/qspatialite/CMakeLists.txt b/external/qspatialite/CMakeLists.txt
index 33536da..61c7370 100644
--- a/external/qspatialite/CMakeLists.txt
+++ b/external/qspatialite/CMakeLists.txt
@@ -7,11 +7,19 @@ add_definitions(-DQT_SHARED)
 
 include_directories(SYSTEM
 	${SQLITE3_INCLUDE_DIR}
-	${Qt5Sql_PRIVATE_INCLUDE_DIRS}
 )
+if (BUILD_WITH_QT6)
+  include_directories(SYSTEM ${Qt6Sql_PRIVATE_INCLUDE_DIRS})
+else()
+  include_directories(SYSTEM ${Qt5Sql_PRIVATE_INCLUDE_DIRS})
+endif()
 
 set(QSQLSPATIALITE_SRC qsql_spatialite.cpp smain.cpp)
-QT5_WRAP_CPP(QSQLSPATIALITE_SRC qsql_spatialite.h smain.h)
+if (BUILD_WITH_QT6)
+  QT6_WRAP_CPP(QSQLSPATIALITE_SRC qsql_spatialite.h smain.h)
+else()
+  QT5_WRAP_CPP(QSQLSPATIALITE_SRC qsql_spatialite.h smain.h)
+endif()
 
 add_library(qsqlspatialite SHARED ${QSQLSPATIALITE_SRC})
 target_link_libraries(qsqlspatialite
diff --git a/external/qspatialite/qsql_spatialite.cpp b/external/qspatialite/qsql_spatialite.cpp
index 0e8f15a..9e30004 100644
--- a/external/qspatialite/qsql_spatialite.cpp
+++ b/external/qspatialite/qsql_spatialite.cpp
@@ -632,7 +632,7 @@ bool QSpatiaLiteDriver::open( const QString &db, const QString &, const QString
   bool openReadOnlyOption = false;
   bool openUriOption = false;
 
-  const auto opts = conOpts.splitRef( QLatin1Char( ';' ) );
+  const auto opts = conOpts.split( u';' );
   for ( auto option : opts )
   {
     option = option.trimmed();