diff --git a/source/CMakeLists.txt b/source/CMakeLists.txt
index 386b6549..93344980 100644
--- a/source/CMakeLists.txt
+++ b/source/CMakeLists.txt
@@ -171,6 +171,10 @@ if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     set_source_files_properties(${CMAKE_CURRENT_SOURCE_DIR}/detail/serialization/zstream.cpp PROPERTIES COMPILE_FLAGS "-Wno-undef -Wno-shorten-64-to-32")
 endif()
 
+if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
+    set_source_files_properties(${CMAKE_CURRENT_SOURCE_DIR}/detail/serialization/miniz.cpp PROPERTIES COMPILE_FLAGS "-Wno-strict-aliasing")
+endif()
+
 source_group(xlnt FILES ${ROOT_HEADERS})
 source_group(cell FILES ${CELL_HEADERS} ${CELL_SOURCES})
 source_group(detail FILES ${DETAIL_ROOT_HEADERS} ${DETAIL_ROOT_SOURCES})
diff --git a/source/detail/cryptography/xlsx_crypto_producer.cpp b/source/detail/cryptography/xlsx_crypto_producer.cpp
index 16f8b412..6d1973a0 100644
--- a/source/detail/cryptography/xlsx_crypto_producer.cpp
+++ b/source/detail/cryptography/xlsx_crypto_producer.cpp
@@ -45,7 +45,7 @@ encryption_info generate_encryption_info(const std::u16string &/*password*/)
 
     result.is_agile = true;
 
-    result.agile = encryption_info::agile_encryption_info{};
+    result.agile = encryption_info::agile_encryption_info();
 
     result.agile.key_data.block_size = 16;
     result.agile.key_data.cipher_algorithm = "AES";
diff --git a/source/detail/serialization/miniz.cpp b/source/detail/serialization/miniz.cpp
index 6eb923a4..fdab680c 100644
--- a/source/detail/serialization/miniz.cpp
+++ b/source/detail/serialization/miniz.cpp
@@ -3173,6 +3173,7 @@ struct mz_zip_internal_state_tag
 #if defined(DEBUG) || defined(_DEBUG) || defined(NDEBUG)
 static MZ_FORCEINLINE mz_uint mz_zip_array_range_check(const mz_zip_array *pArray, mz_uint index)
 {
+    (void)pArray;
     MZ_ASSERT(index < pArray->m_size);
     return index;
 }
diff --git a/source/detail/serialization/xlsx_producer.cpp b/source/detail/serialization/xlsx_producer.cpp
index e8df15a9..c55b24e2 100644
--- a/source/detail/serialization/xlsx_producer.cpp
+++ b/source/detail/serialization/xlsx_producer.cpp
@@ -110,11 +110,15 @@ void xlsx_producer::open(std::ostream &destination)
 
 cell xlsx_producer::add_cell(const cell_reference &ref)
 {
+    current_cell_->column_ = ref.column();
+    current_cell_->row_ = ref.row();
+
     return cell(current_cell_);
 }
 
 worksheet xlsx_producer::add_worksheet(const std::string &title)
 {
+    current_worksheet_->title_ = title;
     return worksheet(current_worksheet_);
 }
 
@@ -2256,7 +2260,10 @@ void xlsx_producer::write_worksheet(const relationship &rel)
 
             switch (cell.data_type())
             {
-            case cell::type::boolean:
+	    case cell::type::empty:
+                break;
+
+	    case cell::type::boolean:
                 write_attribute("t", "b");
                 break;
 
@@ -2298,6 +2305,9 @@ void xlsx_producer::write_worksheet(const relationship &rel)
 
             switch (cell.data_type())
             {
+            case cell::type::empty:
+                break;
+
             case cell::type::boolean:
                 write_element(xmlns, "v", write_bool(cell.value<bool>()));
                 break;