Add SQLite to build system and CI

.github/workflows/build.yaml

@@ -62,7 +62,7 @@ jobs:
       if: contains(matrix.os, 'ubuntu')
       run: |
         sudo apt-get update -y
-        sudo apt-get install pkg-config cmake libfreetype6-dev libnotify-dev libsdl2-dev -y
+        sudo apt-get install pkg-config cmake libfreetype6-dev libnotify-dev libsdl2-dev libsqlite3-dev -y
 
     - name: Prepare Linux (fancy)
       if: contains(matrix.os, 'ubuntu') && matrix.fancy

cmake/FindSQLite3.cmake

@@ -0,0 +1,45 @@
+if(NOT PREFER_BUNDLED_LIBS)
+  set(CMAKE_MODULE_PATH ${ORIGINAL_CMAKE_MODULE_PATH})
+  find_package(SQLite3)
+  set(CMAKE_MODULE_PATH ${OWN_CMAKE_MODULE_PATH})
+endif()
+
+if(NOT SQLite3_FOUND)
+  if(NOT CMAKE_CROSSCOMPILING)
+    find_package(PkgConfig QUIET)
+    pkg_check_modules(PC_SQLite3 sqlite3)
+  endif()
+
+  set_extra_dirs_lib(SQLite3 sqlite3)
+  find_library(SQLite3_LIBRARY
+    NAMES sqlite3
+    HINTS ${HINTS_SQLite3_LIBDIR} ${PC_SQLite3_LIBDIR} ${PC_SQLite3_LIBRARY_DIRS}
+    PATHS ${PATHS_SQLite3_LIBDIR}
+    ${CROSSCOMPILING_NO_CMAKE_SYSTEM_PATH}
+  )
+  set_extra_dirs_include(SQLite3 sqlite3 "${SQLite3_LIBRARY}")
+  find_path(SQLite3_INCLUDEDIR sqlite3.h 
+    PATH_SUFFIXES sqlite3 
+    HINTS ${HINTS_SQLite3_INCLUDEDIR} ${PC_SQLite3_INCLUDEDIR} ${PC_SQLite3_INCLUDE_DIRS}
+    PATHS ${PATHS_SQLite3_INCLUDEDIR}
+    ${CROSSCOMPILING_NO_CMAKE_SYSTEM_PATH}
+  )
+
+  include(FindPackageHandleStandardArgs)
+  find_package_handle_standard_args(SQLite3 DEFAULT_MSG SQLite3_INCLUDEDIR)
+
+  mark_as_advanced(SQLite3_INCLUDEDIR SQLite3_LIBRARY)
+
+  if(SQLite3_FOUND)
+    set(SQLite3_INCLUDE_DIRS ${SQLite3_INCLUDEDIR})
+    if(SQLite3_LIBRARY)
+      set(SQLite3_LIBRARIES ${SQLite3_LIBRARY})
+    else()
+      set(SQLite3_LIBRARIES)
+    endif()
+  endif()
+endif()
+
+if(SQLite3_FOUND)
+  is_bundled(SQLite3_BUNDLED "${SQLite3_LIBRARY}")
+endif()