Check in configure if we have sqlite3_enable_extension

Author: lostbard

src/configure.ac

@@ -179,6 +179,14 @@ if test "x$SQLITE_LIBS" == "x"; then
   AC_MSG_ERROR([sqlite3 is required to install $PACKAGE_NAME])
 fi
 
+AC_CHECK_LIB([sqlite3], [sqlite3_enable_load_extension],
+  [HAVE_SQLITE3_ENABLE_LOAD_EXTENSION=yes],
+  [HAVE_SQLITE3_ENABLE_LOAD_EXTENSION=no])
+
+if test "$HAVE_SQLITE3_ENABLE_LOAD_EXTENSION" == "no"; then
+  AC_DEFINE([HAVE_SQLITE3_ENABLE_LOAD_EXTENSION],[],[sql3_enable_extension is available])
+fi
+
 ## restore
 CPPFLAGS=$save_CPPFLAGS
 LDFLAGS=$save_LDFLAGS

src/octave_sqlite.cc

@@ -244,11 +244,13 @@ octave_sqlite::create (const std::string &infilename, const std::string &inmode)
     }
 
   //Enable loading of external extensions (e.g. sqlean)
+#ifdef HAVE_SQLITE3_ENABLE_LOAD_EXTENSION
   rc = sqlite3_enable_load_extension(db, 1);
   if (rc)
     {
       warning("Failed to enable load extensions - '%s'", error_string(db, rc).c_str());
     }
+#endif
 
   return true;
 }