From 79708fb4f619888d29c622ab32ddde2e9afa4d36 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Markus=20Reitb=C3=B6ck?= <mrpilot@gmx.net>
Date: Sat, 13 Sep 2025 17:18:54 +0200
Subject: [PATCH] Material: use CMake to generate precompiled headers on all
 platforms

"Professional CMake" book suggest the following:

"Targets should build successfully with or without compiler support for precompiled headers. It
should be considered an optimization, not a requirement. In particular, do not explicitly include a
precompile header (e.g. stdafx.h) in the source code, let CMake force-include an automatically
generated precompile header on the compiler command line instead. This is more portable across
the major compilers and is likely to be easier to maintain. It will also avoid warnings being
generated from certain code checking tools like iwyu (include what you use)."

Therefore, removed the "#include <PreCompiled.h>" from sources, also
there is no need for the "#ifdef _PreComp_" anymore
---
 src/Mod/Material/App/AppMaterial.cpp          |  4 ----
 src/Mod/Material/App/Array2DPyImp.cpp         |  1 -
 src/Mod/Material/App/Array3DPyImp.cpp         |  1 -
 src/Mod/Material/App/CMakeLists.txt           | 10 ++++-----
 src/Mod/Material/App/ExternalManager.cpp      |  4 ----
 src/Mod/Material/App/Library.cpp              |  3 ---
 src/Mod/Material/App/MaterialConfigLoader.cpp |  4 +---
 src/Mod/Material/App/MaterialFilter.cpp       |  4 ----
 .../App/MaterialFilterOptionsPyImp.cpp        |  2 --
 src/Mod/Material/App/MaterialFilterPyImp.cpp  |  1 -
 src/Mod/Material/App/MaterialLibrary.cpp      |  4 +---
 src/Mod/Material/App/MaterialLibraryPyImp.cpp |  2 --
 src/Mod/Material/App/MaterialLoader.cpp       |  4 +---
 src/Mod/Material/App/MaterialManager.cpp      |  4 +---
 .../Material/App/MaterialManagerExternal.cpp  |  4 ----
 src/Mod/Material/App/MaterialManagerLocal.cpp |  3 ---
 src/Mod/Material/App/MaterialManagerPyImp.cpp |  1 -
 .../Material/App/MaterialPropertyPyImp.cpp    |  2 --
 src/Mod/Material/App/MaterialPyImp.cpp        |  1 -
 src/Mod/Material/App/MaterialValue.cpp        |  4 +---
 src/Mod/Material/App/Materials.cpp            |  4 +---
 src/Mod/Material/App/Model.cpp                |  4 +---
 src/Mod/Material/App/ModelLibrary.cpp         |  3 ---
 src/Mod/Material/App/ModelLoader.cpp          |  3 ---
 src/Mod/Material/App/ModelManager.cpp         |  4 ----
 src/Mod/Material/App/ModelManagerExternal.cpp |  4 ----
 src/Mod/Material/App/ModelManagerLocal.cpp    |  4 ----
 src/Mod/Material/App/ModelManagerPyImp.cpp    |  1 -
 src/Mod/Material/App/ModelPropertyPyImp.cpp   |  1 -
 src/Mod/Material/App/ModelPyImp.cpp           |  1 -
 src/Mod/Material/App/ModelUuids.cpp           |  4 ----
 src/Mod/Material/App/PreCompiled.cpp          | 22 -------------------
 src/Mod/Material/App/PreCompiled.h            |  2 --
 src/Mod/Material/App/PropertyMaterial.cpp     |  4 +---
 src/Mod/Material/App/PyVariants.cpp           |  2 --
 src/Mod/Material/App/UUIDsPyImp.cpp           |  1 -
 src/Mod/Material/Gui/AppMatGui.cpp            |  4 ----
 src/Mod/Material/Gui/AppearancePreview.cpp    |  3 ---
 src/Mod/Material/Gui/Array2D.cpp              |  4 +---
 src/Mod/Material/Gui/Array3D.cpp              |  4 +---
 src/Mod/Material/Gui/ArrayDelegate.cpp        |  4 +---
 src/Mod/Material/Gui/ArrayModel.cpp           |  4 +---
 src/Mod/Material/Gui/BaseDelegate.cpp         |  4 +---
 src/Mod/Material/Gui/CMakeLists.txt           | 13 +++++------
 src/Mod/Material/Gui/Command.cpp              |  4 +---
 .../Material/Gui/DlgDisplayPropertiesImp.cpp  |  3 ---
 src/Mod/Material/Gui/DlgInspectAppearance.cpp |  4 +---
 src/Mod/Material/Gui/DlgInspectMaterial.cpp   |  4 +---
 src/Mod/Material/Gui/DlgMaterialImp.cpp       |  3 ---
 .../Gui/DlgSettingsDefaultMaterial.cpp        |  1 -
 src/Mod/Material/Gui/DlgSettingsExternal.cpp  |  4 ----
 src/Mod/Material/Gui/DlgSettingsMaterial.cpp  |  1 -
 src/Mod/Material/Gui/ImageEdit.cpp            |  4 +---
 src/Mod/Material/Gui/ListDelegate.cpp         |  4 +---
 src/Mod/Material/Gui/ListEdit.cpp             |  4 +---
 src/Mod/Material/Gui/ListModel.cpp            |  4 +---
 src/Mod/Material/Gui/MaterialDelegate.cpp     |  4 +---
 src/Mod/Material/Gui/MaterialSave.cpp         |  4 +---
 src/Mod/Material/Gui/MaterialTreeWidget.cpp   |  4 +---
 .../Material/Gui/MaterialTreeWidgetPyImp.cpp  |  1 -
 src/Mod/Material/Gui/MaterialsEditor.cpp      |  4 +---
 src/Mod/Material/Gui/ModelSelect.cpp          |  4 +---
 src/Mod/Material/Gui/PreCompiled.cpp          | 22 -------------------
 src/Mod/Material/Gui/PreCompiled.h            |  2 --
 src/Mod/Material/Gui/TaskMigrateExternal.cpp  |  4 ----
 src/Mod/Material/Gui/TextEdit.cpp             |  4 +---
 src/Mod/Material/Gui/Workbench.cpp            |  1 -
 src/Mod/Material/Gui/WorkbenchManipulator.cpp |  1 -
 .../Mod/Material/App/TestMaterialCards.cpp    |  4 ----
 .../Mod/Material/App/TestMaterialFilter.cpp   |  4 ----
 .../Material/App/TestMaterialProperties.cpp   |  4 ----
 .../Mod/Material/App/TestMaterialValue.cpp    |  4 ----
 tests/src/Mod/Material/App/TestMaterials.cpp  |  4 ----
 tests/src/Mod/Material/App/TestModel.cpp      |  4 ----
 .../Mod/Material/App/TestModelProperties.cpp  |  4 ----
 75 files changed, 37 insertions(+), 253 deletions(-)
 delete mode 100644 src/Mod/Material/App/PreCompiled.cpp
 delete mode 100644 src/Mod/Material/Gui/PreCompiled.cpp

diff --git a/src/Mod/Material/App/AppMaterial.cpp b/src/Mod/Material/App/AppMaterial.cpp
index a6bc448cf1..4a82d772a6 100644
--- a/src/Mod/Material/App/AppMaterial.cpp
+++ b/src/Mod/Material/App/AppMaterial.cpp
@@ -19,10 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
-#endif
-
 #include <Base/Console.h>
 #include <Base/Interpreter.h>
 #include <Base/PyObjectBase.h>
diff --git a/src/Mod/Material/App/Array2DPyImp.cpp b/src/Mod/Material/App/Array2DPyImp.cpp
index 549dc673aa..4d80370ef5 100644
--- a/src/Mod/Material/App/Array2DPyImp.cpp
+++ b/src/Mod/Material/App/Array2DPyImp.cpp
@@ -19,7 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
 
 #include <QList>
 #include <QMetaType>
diff --git a/src/Mod/Material/App/Array3DPyImp.cpp b/src/Mod/Material/App/Array3DPyImp.cpp
index c6ee68510a..ad40e1a679 100644
--- a/src/Mod/Material/App/Array3DPyImp.cpp
+++ b/src/Mod/Material/App/Array3DPyImp.cpp
@@ -19,7 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
 
 #include <QList>
 #include <QMetaType>
diff --git a/src/Mod/Material/App/CMakeLists.txt b/src/Mod/Material/App/CMakeLists.txt
index 1fe10bfbf6..473a67df8b 100644
--- a/src/Mod/Material/App/CMakeLists.txt
+++ b/src/Mod/Material/App/CMakeLists.txt
@@ -114,7 +114,6 @@ SET(Materials_SRCS
     ModelManagerLocal.h
     ModelUuids.cpp
     ModelUuids.h
-    PreCompiled.cpp
     PreCompiled.h
     PropertyMaterial.cpp
     PropertyMaterial.h
@@ -134,13 +133,14 @@ if(BUILD_MATERIAL_EXTERNAL)
     )
 endif(BUILD_MATERIAL_EXTERNAL)
 
+add_library(Materials SHARED ${Materials_SRCS})
+
 if(FREECAD_USE_PCH)
-    add_definitions(-D_PreComp_)
-    GET_MSVC_PRECOMPILED_SOURCE("PreCompiled.cpp" PCH_SRCS ${Materials_SRCS})
-    ADD_MSVC_PRECOMPILED_HEADER(Materials PreCompiled.h PreCompiled.cpp PCH_SRCS)
+    target_precompile_headers(Materials PRIVATE
+            $<$<COMPILE_LANGUAGE:CXX>:"${CMAKE_CURRENT_LIST_DIR}/PreCompiled.h">
+    )
 endif(FREECAD_USE_PCH)
 
-add_library(Materials SHARED ${Materials_SRCS})
 target_include_directories(
     Materials
     PRIVATE
diff --git a/src/Mod/Material/App/ExternalManager.cpp b/src/Mod/Material/App/ExternalManager.cpp
index ad4b358fcc..9512c19559 100644
--- a/src/Mod/Material/App/ExternalManager.cpp
+++ b/src/Mod/Material/App/ExternalManager.cpp
@@ -19,10 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
-#endif
-
 #include <Python.h>
 #include <QMutex>
 #include <QMutexLocker>
diff --git a/src/Mod/Material/App/Library.cpp b/src/Mod/Material/App/Library.cpp
index 98d3bd54d4..c9b49b88dc 100644
--- a/src/Mod/Material/App/Library.cpp
+++ b/src/Mod/Material/App/Library.cpp
@@ -19,10 +19,7 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <string>
-#endif
 
 #include <App/Application.h>
 
diff --git a/src/Mod/Material/App/MaterialConfigLoader.cpp b/src/Mod/Material/App/MaterialConfigLoader.cpp
index c2271b2456..19cb504342 100644
--- a/src/Mod/Material/App/MaterialConfigLoader.cpp
+++ b/src/Mod/Material/App/MaterialConfigLoader.cpp
@@ -19,8 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QDirIterator>
 #include <QFileInfo>
 #include <QString>
@@ -30,7 +28,7 @@
 #include <QUuid>
 #include <memory>
 #include <fstream>
-#endif
+
 
 
 #include <App/Application.h>
diff --git a/src/Mod/Material/App/MaterialFilter.cpp b/src/Mod/Material/App/MaterialFilter.cpp
index 7ab64f3d81..c491fbd31a 100644
--- a/src/Mod/Material/App/MaterialFilter.cpp
+++ b/src/Mod/Material/App/MaterialFilter.cpp
@@ -19,10 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
-#endif
-
 #include <App/Application.h>
 
 #include "Exceptions.h"
diff --git a/src/Mod/Material/App/MaterialFilterOptionsPyImp.cpp b/src/Mod/Material/App/MaterialFilterOptionsPyImp.cpp
index 3e7f21b6d5..d04d130772 100644
--- a/src/Mod/Material/App/MaterialFilterOptionsPyImp.cpp
+++ b/src/Mod/Material/App/MaterialFilterOptionsPyImp.cpp
@@ -19,8 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-
 #include <QMetaType>
 
 #include <Base/Quantity.h>
diff --git a/src/Mod/Material/App/MaterialFilterPyImp.cpp b/src/Mod/Material/App/MaterialFilterPyImp.cpp
index 2b467e5587..b214b3d8c4 100644
--- a/src/Mod/Material/App/MaterialFilterPyImp.cpp
+++ b/src/Mod/Material/App/MaterialFilterPyImp.cpp
@@ -19,7 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
 
 #include <QMetaType>
 
diff --git a/src/Mod/Material/App/MaterialLibrary.cpp b/src/Mod/Material/App/MaterialLibrary.cpp
index c15a3a97d2..8fd391b22f 100644
--- a/src/Mod/Material/App/MaterialLibrary.cpp
+++ b/src/Mod/Material/App/MaterialLibrary.cpp
@@ -19,12 +19,10 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QDirIterator>
 #include <QFileInfo>
 #include <QVector>
-#endif
+
 
 
 #include <App/Application.h>
diff --git a/src/Mod/Material/App/MaterialLibraryPyImp.cpp b/src/Mod/Material/App/MaterialLibraryPyImp.cpp
index 7001d9dc6b..9ae8377c8a 100644
--- a/src/Mod/Material/App/MaterialLibraryPyImp.cpp
+++ b/src/Mod/Material/App/MaterialLibraryPyImp.cpp
@@ -19,8 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-
 #include <QMetaType>
 
 #include <Base/Quantity.h>
diff --git a/src/Mod/Material/App/MaterialLoader.cpp b/src/Mod/Material/App/MaterialLoader.cpp
index fbe0c4639d..815fe8488b 100644
--- a/src/Mod/Material/App/MaterialLoader.cpp
+++ b/src/Mod/Material/App/MaterialLoader.cpp
@@ -19,15 +19,13 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QDirIterator>
 #include <QFileInfo>
 #include <QList>
 #include <QMetaType>
 #include <QRegularExpression>
 #include <QString>
-#endif
+
 
 #include <App/Application.h>
 #include <Base/Interpreter.h>
diff --git a/src/Mod/Material/App/MaterialManager.cpp b/src/Mod/Material/App/MaterialManager.cpp
index b4ca984a6f..4b97f7a7de 100644
--- a/src/Mod/Material/App/MaterialManager.cpp
+++ b/src/Mod/Material/App/MaterialManager.cpp
@@ -19,10 +19,8 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <random>
-#endif
+
 
 #include <QDirIterator>
 #include <QMutex>
diff --git a/src/Mod/Material/App/MaterialManagerExternal.cpp b/src/Mod/Material/App/MaterialManagerExternal.cpp
index 8ebfdc2d08..80835c74a6 100644
--- a/src/Mod/Material/App/MaterialManagerExternal.cpp
+++ b/src/Mod/Material/App/MaterialManagerExternal.cpp
@@ -19,10 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
-#endif
-
 #include <QMutexLocker>
 
 #include <App/Application.h>
diff --git a/src/Mod/Material/App/MaterialManagerLocal.cpp b/src/Mod/Material/App/MaterialManagerLocal.cpp
index dc5e50fbff..d3d5cc9f76 100644
--- a/src/Mod/Material/App/MaterialManagerLocal.cpp
+++ b/src/Mod/Material/App/MaterialManagerLocal.cpp
@@ -19,10 +19,7 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <random>
-#endif
 
 #include <QDirIterator>
 #include <QMutex>
diff --git a/src/Mod/Material/App/MaterialManagerPyImp.cpp b/src/Mod/Material/App/MaterialManagerPyImp.cpp
index cb898bda1a..577301486e 100644
--- a/src/Mod/Material/App/MaterialManagerPyImp.cpp
+++ b/src/Mod/Material/App/MaterialManagerPyImp.cpp
@@ -19,7 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
 
 #include "Exceptions.h"
 #include "MaterialFilter.h"
diff --git a/src/Mod/Material/App/MaterialPropertyPyImp.cpp b/src/Mod/Material/App/MaterialPropertyPyImp.cpp
index d6bced53c8..7fa338ef81 100644
--- a/src/Mod/Material/App/MaterialPropertyPyImp.cpp
+++ b/src/Mod/Material/App/MaterialPropertyPyImp.cpp
@@ -19,8 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-
 #include "Model.h"
 #include "PyVariants.h"
 #include "ModelPropertyPy.h"
diff --git a/src/Mod/Material/App/MaterialPyImp.cpp b/src/Mod/Material/App/MaterialPyImp.cpp
index 66ae0479e7..b6506a4c98 100644
--- a/src/Mod/Material/App/MaterialPyImp.cpp
+++ b/src/Mod/Material/App/MaterialPyImp.cpp
@@ -19,7 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
 
 #include <QMetaType>
 
diff --git a/src/Mod/Material/App/MaterialValue.cpp b/src/Mod/Material/App/MaterialValue.cpp
index f8514c2845..eaa383a92a 100644
--- a/src/Mod/Material/App/MaterialValue.cpp
+++ b/src/Mod/Material/App/MaterialValue.cpp
@@ -19,11 +19,9 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QMetaType>
 #include <QRegularExpression>
-#endif
+
 
 #include <App/Application.h>
 #include <Base/Quantity.h>
diff --git a/src/Mod/Material/App/Materials.cpp b/src/Mod/Material/App/Materials.cpp
index 11afb9f78f..40cb847bbc 100644
--- a/src/Mod/Material/App/Materials.cpp
+++ b/src/Mod/Material/App/Materials.cpp
@@ -19,11 +19,9 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QMetaType>
 #include <QUuid>
-#endif
+
 
 
 #include <App/Application.h>
diff --git a/src/Mod/Material/App/Model.cpp b/src/Mod/Material/App/Model.cpp
index 28a1b7ad81..fe6955eea8 100644
--- a/src/Mod/Material/App/Model.cpp
+++ b/src/Mod/Material/App/Model.cpp
@@ -19,10 +19,8 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <string>
-#endif
+
 
 #include <App/Application.h>
 
diff --git a/src/Mod/Material/App/ModelLibrary.cpp b/src/Mod/Material/App/ModelLibrary.cpp
index ecbd09f755..7d327b2520 100644
--- a/src/Mod/Material/App/ModelLibrary.cpp
+++ b/src/Mod/Material/App/ModelLibrary.cpp
@@ -19,11 +19,8 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <string>
 #include <QLatin1Char>
-#endif
 
 #include <QFileInfo>
 
diff --git a/src/Mod/Material/App/ModelLoader.cpp b/src/Mod/Material/App/ModelLoader.cpp
index 671cb8db3d..c52ca5484f 100644
--- a/src/Mod/Material/App/ModelLoader.cpp
+++ b/src/Mod/Material/App/ModelLoader.cpp
@@ -19,12 +19,9 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QDirIterator>
 #include <QFileInfo>
 #include <QString>
-#endif
 
 #include <App/Application.h>
 #include <Base/FileInfo.h>
diff --git a/src/Mod/Material/App/ModelManager.cpp b/src/Mod/Material/App/ModelManager.cpp
index 99d3c1f561..9ab164abe4 100644
--- a/src/Mod/Material/App/ModelManager.cpp
+++ b/src/Mod/Material/App/ModelManager.cpp
@@ -19,10 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
-#endif
-
 #include <QDirIterator>
 #include <QMutexLocker>
 
diff --git a/src/Mod/Material/App/ModelManagerExternal.cpp b/src/Mod/Material/App/ModelManagerExternal.cpp
index 583458a83e..ae15e73e31 100644
--- a/src/Mod/Material/App/ModelManagerExternal.cpp
+++ b/src/Mod/Material/App/ModelManagerExternal.cpp
@@ -19,10 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
-#endif
-
 #include <QMutexLocker>
 
 #include <App/Application.h>
diff --git a/src/Mod/Material/App/ModelManagerLocal.cpp b/src/Mod/Material/App/ModelManagerLocal.cpp
index 9f59ad4657..8442a1fa9a 100644
--- a/src/Mod/Material/App/ModelManagerLocal.cpp
+++ b/src/Mod/Material/App/ModelManagerLocal.cpp
@@ -19,10 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
-#endif
-
 #include <QDirIterator>
 #include <QMutexLocker>
 
diff --git a/src/Mod/Material/App/ModelManagerPyImp.cpp b/src/Mod/Material/App/ModelManagerPyImp.cpp
index 1aa23a6c2e..529166897a 100644
--- a/src/Mod/Material/App/ModelManagerPyImp.cpp
+++ b/src/Mod/Material/App/ModelManagerPyImp.cpp
@@ -19,7 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
 
 #include "Model.h"
 #include "ModelLibrary.h"
diff --git a/src/Mod/Material/App/ModelPropertyPyImp.cpp b/src/Mod/Material/App/ModelPropertyPyImp.cpp
index 90974e770b..cf401bab31 100644
--- a/src/Mod/Material/App/ModelPropertyPyImp.cpp
+++ b/src/Mod/Material/App/ModelPropertyPyImp.cpp
@@ -19,7 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
 
 #include "Model.h"
 #include "ModelPropertyPy.h"
diff --git a/src/Mod/Material/App/ModelPyImp.cpp b/src/Mod/Material/App/ModelPyImp.cpp
index a9838ed649..9aae1dc0fe 100644
--- a/src/Mod/Material/App/ModelPyImp.cpp
+++ b/src/Mod/Material/App/ModelPyImp.cpp
@@ -19,7 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
 
 #include "Model.h"
 #include "ModelLibrary.h"
diff --git a/src/Mod/Material/App/ModelUuids.cpp b/src/Mod/Material/App/ModelUuids.cpp
index dd563848c2..bea9599f30 100644
--- a/src/Mod/Material/App/ModelUuids.cpp
+++ b/src/Mod/Material/App/ModelUuids.cpp
@@ -19,10 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
-#endif
-
 #include "ModelUuids.h"
 
 using namespace Materials;
diff --git a/src/Mod/Material/App/PreCompiled.cpp b/src/Mod/Material/App/PreCompiled.cpp
deleted file mode 100644
index 48eade6cc8..0000000000
--- a/src/Mod/Material/App/PreCompiled.cpp
+++ /dev/null
@@ -1,22 +0,0 @@
-/***************************************************************************
- *   Copyright (c) 2023 David Carter <dcarter@david.carter.ca>             *
- *                                                                         *
- *   This file is part of FreeCAD.                                         *
- *                                                                         *
- *   FreeCAD is free software: you can redistribute it and/or modify it    *
- *   under the terms of the GNU Lesser General Public License as           *
- *   published by the Free Software Foundation, either version 2.1 of the  *
- *   License, or (at your option) any later version.                       *
- *                                                                         *
- *   FreeCAD is distributed in the hope that it will be useful, but        *
- *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      *
- *   Lesser General Public License for more details.                       *
- *                                                                         *
- *   You should have received a copy of the GNU Lesser General Public      *
- *   License along with FreeCAD. If not, see                               *
- *   <https://www.gnu.org/licenses/>.                                      *
- *                                                                         *
- **************************************************************************/
-
-#include "PreCompiled.h"
diff --git a/src/Mod/Material/App/PreCompiled.h b/src/Mod/Material/App/PreCompiled.h
index 0abd286cbc..05b5feb1c2 100644
--- a/src/Mod/Material/App/PreCompiled.h
+++ b/src/Mod/Material/App/PreCompiled.h
@@ -28,7 +28,6 @@
 #include <windows.h>
 #endif
 
-#ifdef _PreComp_
 
 // standard
 #include <cmath>
@@ -57,6 +56,5 @@
 #include <QUuid>
 #include <QVector>
 
-#endif  //_PreComp_
 
 #endif  // MATERIAL_PRECOMPILED_H
diff --git a/src/Mod/Material/App/PropertyMaterial.cpp b/src/Mod/Material/App/PropertyMaterial.cpp
index 086f0dd040..02363183ad 100644
--- a/src/Mod/Material/App/PropertyMaterial.cpp
+++ b/src/Mod/Material/App/PropertyMaterial.cpp
@@ -19,11 +19,9 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QMetaType>
 #include <QUuid>
-#endif
+
 
 
 #include <App/Application.h>
diff --git a/src/Mod/Material/App/PyVariants.cpp b/src/Mod/Material/App/PyVariants.cpp
index c1599e3661..39702bc100 100644
--- a/src/Mod/Material/App/PyVariants.cpp
+++ b/src/Mod/Material/App/PyVariants.cpp
@@ -19,8 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-
 #include <QVariant>
 
 #include "PyVariants.h"
diff --git a/src/Mod/Material/App/UUIDsPyImp.cpp b/src/Mod/Material/App/UUIDsPyImp.cpp
index 4ff55ee7b8..68145ed7d3 100644
--- a/src/Mod/Material/App/UUIDsPyImp.cpp
+++ b/src/Mod/Material/App/UUIDsPyImp.cpp
@@ -19,7 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
 
 #include "ModelUuids.h"
 
diff --git a/src/Mod/Material/Gui/AppMatGui.cpp b/src/Mod/Material/Gui/AppMatGui.cpp
index e3500fca45..077c7b082a 100644
--- a/src/Mod/Material/Gui/AppMatGui.cpp
+++ b/src/Mod/Material/Gui/AppMatGui.cpp
@@ -20,10 +20,6 @@
  **************************************************************************/
 
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
-#endif
-
 #include <Base/Console.h>
 #include <Base/Interpreter.h>
 #include <Base/PyObjectBase.h>
diff --git a/src/Mod/Material/Gui/AppearancePreview.cpp b/src/Mod/Material/Gui/AppearancePreview.cpp
index 2c6eaa599f..5c77131d10 100644
--- a/src/Mod/Material/Gui/AppearancePreview.cpp
+++ b/src/Mod/Material/Gui/AppearancePreview.cpp
@@ -19,8 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QImage>
 #include <QImageReader>
 
@@ -31,7 +29,6 @@
 #include <Inventor/nodes/SoSphere.h>
 #include <Inventor/nodes/SoSwitch.h>
 #include <Inventor/nodes/SoTexture2.h>
-#endif
 
 #include <Inventor/nodes/SoTextureCoordinateEnvironment.h>
 
diff --git a/src/Mod/Material/Gui/Array2D.cpp b/src/Mod/Material/Gui/Array2D.cpp
index 85cdcb71e6..b4cf17bb29 100644
--- a/src/Mod/Material/Gui/Array2D.cpp
+++ b/src/Mod/Material/Gui/Array2D.cpp
@@ -19,11 +19,9 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QMenu>
 #include <QMessageBox>
-#endif
+
 
 #include <Gui/Application.h>
 #include <Gui/Command.h>
diff --git a/src/Mod/Material/Gui/Array3D.cpp b/src/Mod/Material/Gui/Array3D.cpp
index fc4397b3dd..c9d3fb052a 100644
--- a/src/Mod/Material/Gui/Array3D.cpp
+++ b/src/Mod/Material/Gui/Array3D.cpp
@@ -19,12 +19,10 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QMenu>
 #include <QMessageBox>
 #include <QPushButton>
-#endif
+
 
 #include <Gui/MainWindow.h>
 
diff --git a/src/Mod/Material/Gui/ArrayDelegate.cpp b/src/Mod/Material/Gui/ArrayDelegate.cpp
index 0ceebb9519..5706a6766d 100644
--- a/src/Mod/Material/Gui/ArrayDelegate.cpp
+++ b/src/Mod/Material/Gui/ArrayDelegate.cpp
@@ -19,8 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QColorDialog>
 #include <QDesktopServices>
 #include <QIODevice>
@@ -31,7 +29,7 @@
 #include <QTextStream>
 #include <QVariant>
 #include <limits>
-#endif
+
 
 #include <App/Application.h>
 #include <Base/Interpreter.h>
diff --git a/src/Mod/Material/Gui/ArrayModel.cpp b/src/Mod/Material/Gui/ArrayModel.cpp
index c8c72ecc86..bff4e1aa73 100644
--- a/src/Mod/Material/Gui/ArrayModel.cpp
+++ b/src/Mod/Material/Gui/ArrayModel.cpp
@@ -19,11 +19,9 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QList>
 #include <QMetaType>
-#endif
+
 
 #include <Base/Console.h>
 #include <Gui/MainWindow.h>
diff --git a/src/Mod/Material/Gui/BaseDelegate.cpp b/src/Mod/Material/Gui/BaseDelegate.cpp
index cf7b8cf375..8bad500e78 100644
--- a/src/Mod/Material/Gui/BaseDelegate.cpp
+++ b/src/Mod/Material/Gui/BaseDelegate.cpp
@@ -19,8 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QColorDialog>
 #include <QDesktopServices>
 #include <QIODevice>
@@ -32,7 +30,7 @@
 #include <QTextStream>
 #include <QVariant>
 #include <limits>
-#endif
+
 
 #include <App/Application.h>
 #include <Base/Interpreter.h>
diff --git a/src/Mod/Material/Gui/CMakeLists.txt b/src/Mod/Material/Gui/CMakeLists.txt
index 69b886e1e8..3be19ef563 100644
--- a/src/Mod/Material/Gui/CMakeLists.txt
+++ b/src/Mod/Material/Gui/CMakeLists.txt
@@ -115,7 +115,6 @@ SET(MatGui_SRCS
     ModelSelect.cpp
     ModelSelect.h
     ModelSelect.ui
-    PreCompiled.cpp
     PreCompiled.h
     TextEdit.cpp
     TextEdit.h
@@ -136,12 +135,6 @@ if(BUILD_MATERIAL_EXTERNAL)
     )
 endif(BUILD_MATERIAL_EXTERNAL)
 
-if(FREECAD_USE_PCH)
-    add_definitions(-D_PreComp_)
-    GET_MSVC_PRECOMPILED_SOURCE("PreCompiled.cpp" PCH_SRCS ${MatGui_SRCS})
-    ADD_MSVC_PRECOMPILED_HEADER(MatGui PreCompiled.h PreCompiled.cpp PCH_SRCS)
-endif(FREECAD_USE_PCH)
-
 SET(MatGuiIcon_SVG
     Resources/icons/list.svg
     Resources/icons/Material_Edit.svg
@@ -168,6 +161,12 @@ add_library(MatGui SHARED
     ${Material_Ui_Files}
 )
 
+if(FREECAD_USE_PCH)
+    target_precompile_headers(MatGui PRIVATE
+            $<$<COMPILE_LANGUAGE:CXX>:"${CMAKE_CURRENT_LIST_DIR}/PreCompiled.h">
+    )
+endif(FREECAD_USE_PCH)
+
 target_include_directories(
     MatGui
     PRIVATE
diff --git a/src/Mod/Material/Gui/Command.cpp b/src/Mod/Material/Gui/Command.cpp
index 3390541ff9..59ca2f6d04 100644
--- a/src/Mod/Material/Gui/Command.cpp
+++ b/src/Mod/Material/Gui/Command.cpp
@@ -19,10 +19,8 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QPointer>
-#endif
+
 
 #include <Gui/Command.h>
 #include <Gui/Control.h>
diff --git a/src/Mod/Material/Gui/DlgDisplayPropertiesImp.cpp b/src/Mod/Material/Gui/DlgDisplayPropertiesImp.cpp
index 0c83cf8a0d..0d93272c25 100644
--- a/src/Mod/Material/Gui/DlgDisplayPropertiesImp.cpp
+++ b/src/Mod/Material/Gui/DlgDisplayPropertiesImp.cpp
@@ -20,12 +20,9 @@
  *                                                                         *
  ***************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QSignalBlocker>
 #include <algorithm>
 #include <boost/signals2.hpp>
-#endif
 
 #include <Base/Console.h>
 #include <Gui/Application.h>
diff --git a/src/Mod/Material/Gui/DlgInspectAppearance.cpp b/src/Mod/Material/Gui/DlgInspectAppearance.cpp
index 0316b5ae62..fd77be6925 100644
--- a/src/Mod/Material/Gui/DlgInspectAppearance.cpp
+++ b/src/Mod/Material/Gui/DlgInspectAppearance.cpp
@@ -19,11 +19,9 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QPainter>
 #include <QPaintEvent>
-#endif
+
 
 #include <App/Document.h>
 #include <Gui/Application.h>
diff --git a/src/Mod/Material/Gui/DlgInspectMaterial.cpp b/src/Mod/Material/Gui/DlgInspectMaterial.cpp
index f1eb8c7537..dbbe50a933 100644
--- a/src/Mod/Material/Gui/DlgInspectMaterial.cpp
+++ b/src/Mod/Material/Gui/DlgInspectMaterial.cpp
@@ -19,13 +19,11 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QClipboard>
 #include <QStandardItem>
 #include <QStandardItemModel>
 #include <QTreeView>
-#endif
+
 
 #include <App/Document.h>
 #include <Gui/Application.h>
diff --git a/src/Mod/Material/Gui/DlgMaterialImp.cpp b/src/Mod/Material/Gui/DlgMaterialImp.cpp
index 6addf027f6..cc187c46fb 100644
--- a/src/Mod/Material/Gui/DlgMaterialImp.cpp
+++ b/src/Mod/Material/Gui/DlgMaterialImp.cpp
@@ -20,14 +20,11 @@
  *                                                                         *
  ***************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QDockWidget>
 #include <QSignalBlocker>
 #include <QString>
 #include <algorithm>
 #include <boost/signals2.hpp>
-#endif
 
 #include <Base/Console.h>
 #include <Gui/Application.h>
diff --git a/src/Mod/Material/Gui/DlgSettingsDefaultMaterial.cpp b/src/Mod/Material/Gui/DlgSettingsDefaultMaterial.cpp
index 92b4c4b9bd..86ff5f941c 100644
--- a/src/Mod/Material/Gui/DlgSettingsDefaultMaterial.cpp
+++ b/src/Mod/Material/Gui/DlgSettingsDefaultMaterial.cpp
@@ -19,7 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
 
 #include <Mod/Material/App/ModelUuids.h>
 
diff --git a/src/Mod/Material/Gui/DlgSettingsExternal.cpp b/src/Mod/Material/Gui/DlgSettingsExternal.cpp
index ecb4423e46..8d1d7f996c 100644
--- a/src/Mod/Material/Gui/DlgSettingsExternal.cpp
+++ b/src/Mod/Material/Gui/DlgSettingsExternal.cpp
@@ -19,10 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
-#endif
-
 #include <App/Application.h>
 
 #include <Mod/Material/App/MaterialManager.h>
diff --git a/src/Mod/Material/Gui/DlgSettingsMaterial.cpp b/src/Mod/Material/Gui/DlgSettingsMaterial.cpp
index 560c4ad3d8..883c869cf9 100644
--- a/src/Mod/Material/Gui/DlgSettingsMaterial.cpp
+++ b/src/Mod/Material/Gui/DlgSettingsMaterial.cpp
@@ -19,7 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
 
 #include "DlgSettingsMaterial.h"
 #include "ui_DlgSettingsMaterial.h"
diff --git a/src/Mod/Material/Gui/ImageEdit.cpp b/src/Mod/Material/Gui/ImageEdit.cpp
index 5a0367b85a..bf52b36bad 100644
--- a/src/Mod/Material/Gui/ImageEdit.cpp
+++ b/src/Mod/Material/Gui/ImageEdit.cpp
@@ -19,8 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QBuffer>
 #include <QFile>
 #include <QMenu>
@@ -30,7 +28,7 @@
 #include <QString>
 #include <QSvgRenderer>
 #include <QTextStream>
-#endif
+
 
 #include <Gui/FileDialog.h>
 #include <Gui/MainWindow.h>
diff --git a/src/Mod/Material/Gui/ListDelegate.cpp b/src/Mod/Material/Gui/ListDelegate.cpp
index b725216818..e5608403fd 100644
--- a/src/Mod/Material/Gui/ListDelegate.cpp
+++ b/src/Mod/Material/Gui/ListDelegate.cpp
@@ -19,8 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QColorDialog>
 #include <QDesktopServices>
 #include <QIODevice>
@@ -31,7 +29,7 @@
 #include <QTextStream>
 #include <QVariant>
 #include <limits>
-#endif
+
 
 #include <App/Application.h>
 #include <Base/Interpreter.h>
diff --git a/src/Mod/Material/Gui/ListEdit.cpp b/src/Mod/Material/Gui/ListEdit.cpp
index 162cbc0710..763d2f16bd 100644
--- a/src/Mod/Material/Gui/ListEdit.cpp
+++ b/src/Mod/Material/Gui/ListEdit.cpp
@@ -19,11 +19,9 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QMenu>
 #include <QMessageBox>
-#endif
+
 
 #include <Gui/MainWindow.h>
 
diff --git a/src/Mod/Material/Gui/ListModel.cpp b/src/Mod/Material/Gui/ListModel.cpp
index 19a065c389..ffbee79f79 100644
--- a/src/Mod/Material/Gui/ListModel.cpp
+++ b/src/Mod/Material/Gui/ListModel.cpp
@@ -19,10 +19,8 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QMetaType>
-#endif
+
 
 #include <Base/Console.h>
 #include <Gui/MainWindow.h>
diff --git a/src/Mod/Material/Gui/MaterialDelegate.cpp b/src/Mod/Material/Gui/MaterialDelegate.cpp
index 397e247548..5079169c15 100644
--- a/src/Mod/Material/Gui/MaterialDelegate.cpp
+++ b/src/Mod/Material/Gui/MaterialDelegate.cpp
@@ -19,8 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QColorDialog>
 #include <QDesktopServices>
 #include <QIODevice>
@@ -33,7 +31,7 @@
 #include <QTextStream>
 #include <QVariant>
 #include <limits>
-#endif
+
 
 #include <App/Application.h>
 #include <Base/Interpreter.h>
diff --git a/src/Mod/Material/Gui/MaterialSave.cpp b/src/Mod/Material/Gui/MaterialSave.cpp
index 6c360dbb37..92ebb97958 100644
--- a/src/Mod/Material/Gui/MaterialSave.cpp
+++ b/src/Mod/Material/Gui/MaterialSave.cpp
@@ -19,12 +19,10 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QMenu>
 #include <QMessageBox>
 #include <QTreeView>
-#endif
+
 
 #include <Gui/Application.h>
 #include <Gui/Command.h>
diff --git a/src/Mod/Material/Gui/MaterialTreeWidget.cpp b/src/Mod/Material/Gui/MaterialTreeWidget.cpp
index 18b8da7e5c..02035f9157 100644
--- a/src/Mod/Material/Gui/MaterialTreeWidget.cpp
+++ b/src/Mod/Material/Gui/MaterialTreeWidget.cpp
@@ -19,11 +19,9 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QContextMenuEvent>
 #include <QMenu>
-#endif
+
 
 #include <cstring>
 
diff --git a/src/Mod/Material/Gui/MaterialTreeWidgetPyImp.cpp b/src/Mod/Material/Gui/MaterialTreeWidgetPyImp.cpp
index c985d70364..7611085626 100644
--- a/src/Mod/Material/Gui/MaterialTreeWidgetPyImp.cpp
+++ b/src/Mod/Material/Gui/MaterialTreeWidgetPyImp.cpp
@@ -19,7 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
 
 #include <Gui/PythonWrapper.h>
 
diff --git a/src/Mod/Material/Gui/MaterialsEditor.cpp b/src/Mod/Material/Gui/MaterialsEditor.cpp
index e4f63a4809..de6c02561e 100644
--- a/src/Mod/Material/Gui/MaterialsEditor.cpp
+++ b/src/Mod/Material/Gui/MaterialsEditor.cpp
@@ -19,8 +19,6 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QColorDialog>
 #include <QDesktopServices>
 #include <QIODevice>
@@ -32,7 +30,7 @@
 #include <QTextStream>
 #include <QVariant>
 #include <limits>
-#endif
+
 
 #include <App/Application.h>
 #include <App/License.h>
diff --git a/src/Mod/Material/Gui/ModelSelect.cpp b/src/Mod/Material/Gui/ModelSelect.cpp
index cc4a81b575..6d2ca38437 100644
--- a/src/Mod/Material/Gui/ModelSelect.cpp
+++ b/src/Mod/Material/Gui/ModelSelect.cpp
@@ -19,13 +19,11 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QDesktopServices>
 #include <QItemSelectionModel>
 #include <QPushButton>
 #include <QString>
-#endif
+
 
 #include <App/Application.h>
 #include <Base/Interpreter.h>
diff --git a/src/Mod/Material/Gui/PreCompiled.cpp b/src/Mod/Material/Gui/PreCompiled.cpp
deleted file mode 100644
index 48eade6cc8..0000000000
--- a/src/Mod/Material/Gui/PreCompiled.cpp
+++ /dev/null
@@ -1,22 +0,0 @@
-/***************************************************************************
- *   Copyright (c) 2023 David Carter <dcarter@david.carter.ca>             *
- *                                                                         *
- *   This file is part of FreeCAD.                                         *
- *                                                                         *
- *   FreeCAD is free software: you can redistribute it and/or modify it    *
- *   under the terms of the GNU Lesser General Public License as           *
- *   published by the Free Software Foundation, either version 2.1 of the  *
- *   License, or (at your option) any later version.                       *
- *                                                                         *
- *   FreeCAD is distributed in the hope that it will be useful, but        *
- *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      *
- *   Lesser General Public License for more details.                       *
- *                                                                         *
- *   You should have received a copy of the GNU Lesser General Public      *
- *   License along with FreeCAD. If not, see                               *
- *   <https://www.gnu.org/licenses/>.                                      *
- *                                                                         *
- **************************************************************************/
-
-#include "PreCompiled.h"
diff --git a/src/Mod/Material/Gui/PreCompiled.h b/src/Mod/Material/Gui/PreCompiled.h
index d514bb4604..9ff1775908 100644
--- a/src/Mod/Material/Gui/PreCompiled.h
+++ b/src/Mod/Material/Gui/PreCompiled.h
@@ -28,7 +28,6 @@
 #include <windows.h>
 #endif
 
-#ifdef _PreComp_
 
 // standard
 #include <cmath>
@@ -49,6 +48,5 @@
 # include <Gui/InventorAll.h>
 
 
-#endif  //_PreComp_
 
 #endif  // MATGUI_PRECOMPILED_H
diff --git a/src/Mod/Material/Gui/TaskMigrateExternal.cpp b/src/Mod/Material/Gui/TaskMigrateExternal.cpp
index 11295e4ae1..d69150009a 100644
--- a/src/Mod/Material/Gui/TaskMigrateExternal.cpp
+++ b/src/Mod/Material/Gui/TaskMigrateExternal.cpp
@@ -20,10 +20,6 @@
  *                                                                         *
  ***************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
-#endif
-
 #include <QFlags>
 
 #include <Base/Console.h>
diff --git a/src/Mod/Material/Gui/TextEdit.cpp b/src/Mod/Material/Gui/TextEdit.cpp
index aee64ea7b9..aa7660276e 100644
--- a/src/Mod/Material/Gui/TextEdit.cpp
+++ b/src/Mod/Material/Gui/TextEdit.cpp
@@ -19,11 +19,9 @@
  *                                                                         *
  **************************************************************************/
 
-#include "PreCompiled.h"
-#ifndef _PreComp_
 #include <QMenu>
 #include <QMessageBox>
-#endif
+
 
 #include <Gui/MainWindow.h>
 
diff --git a/src/Mod/Material/Gui/Workbench.cpp b/src/Mod/Material/Gui/Workbench.cpp
index ac79812837..ac9dadc3c6 100644
--- a/src/Mod/Material/Gui/Workbench.cpp
+++ b/src/Mod/Material/Gui/Workbench.cpp
@@ -20,7 +20,6 @@
  **************************************************************************/
 
 
-#include "PreCompiled.h"
 
 #include <Gui/MenuManager.h>
 #include <Gui/ToolBarManager.h>
diff --git a/src/Mod/Material/Gui/WorkbenchManipulator.cpp b/src/Mod/Material/Gui/WorkbenchManipulator.cpp
index 1fcdfc443f..691865b837 100644
--- a/src/Mod/Material/Gui/WorkbenchManipulator.cpp
+++ b/src/Mod/Material/Gui/WorkbenchManipulator.cpp
@@ -22,7 +22,6 @@
  **************************************************************************/
 
 
-#include "PreCompiled.h"
 #include "WorkbenchManipulator.h"
 #include <Gui/MenuManager.h>
 #include <Gui/ToolBarManager.h>
diff --git a/tests/src/Mod/Material/App/TestMaterialCards.cpp b/tests/src/Mod/Material/App/TestMaterialCards.cpp
index a4c9c4be50..d51aa9912f 100644
--- a/tests/src/Mod/Material/App/TestMaterialCards.cpp
+++ b/tests/src/Mod/Material/App/TestMaterialCards.cpp
@@ -22,10 +22,6 @@
 
 #include <gtest/gtest.h>
 
-#include <Mod/Material/App/PreCompiled.h>
-#ifndef _PreComp_
-#endif
-
 #include <QMetaType>
 #include <QString>
 
diff --git a/tests/src/Mod/Material/App/TestMaterialFilter.cpp b/tests/src/Mod/Material/App/TestMaterialFilter.cpp
index 568e7a134a..fdeba3e1ba 100644
--- a/tests/src/Mod/Material/App/TestMaterialFilter.cpp
+++ b/tests/src/Mod/Material/App/TestMaterialFilter.cpp
@@ -22,10 +22,6 @@
 
 #include "gtest/gtest.h"
 
-#include <Mod/Material/App/PreCompiled.h>
-#ifndef _PreComp_
-#endif
-
 #include <QMetaType>
 #include <QString>
 
diff --git a/tests/src/Mod/Material/App/TestMaterialProperties.cpp b/tests/src/Mod/Material/App/TestMaterialProperties.cpp
index 6fd60c6709..63dfe33cd7 100644
--- a/tests/src/Mod/Material/App/TestMaterialProperties.cpp
+++ b/tests/src/Mod/Material/App/TestMaterialProperties.cpp
@@ -22,10 +22,6 @@
 
 #include <gtest/gtest.h>
 
-#include <Mod/Material/App/PreCompiled.h>
-#ifndef _PreComp_
-#endif
-
 #include <memory>
 
 #include <QMetaType>
diff --git a/tests/src/Mod/Material/App/TestMaterialValue.cpp b/tests/src/Mod/Material/App/TestMaterialValue.cpp
index 9a6cbe79ef..8978993c15 100644
--- a/tests/src/Mod/Material/App/TestMaterialValue.cpp
+++ b/tests/src/Mod/Material/App/TestMaterialValue.cpp
@@ -22,10 +22,6 @@
 
 #include <gtest/gtest.h>
 
-#include <Mod/Material/App/PreCompiled.h>
-#ifndef _PreComp_
-#endif
-
 #include <QMetaType>
 #include <QString>
 
diff --git a/tests/src/Mod/Material/App/TestMaterials.cpp b/tests/src/Mod/Material/App/TestMaterials.cpp
index 7c3b31a6cf..f29b6b1c6b 100644
--- a/tests/src/Mod/Material/App/TestMaterials.cpp
+++ b/tests/src/Mod/Material/App/TestMaterials.cpp
@@ -22,10 +22,6 @@
 
 #include <gtest/gtest.h>
 
-#include <Mod/Material/App/PreCompiled.h>
-#ifndef _PreComp_
-#endif
-
 #include <QLocale>
 #include <QMetaType>
 #include <QString>
diff --git a/tests/src/Mod/Material/App/TestModel.cpp b/tests/src/Mod/Material/App/TestModel.cpp
index dde62d476d..e2de2e3733 100644
--- a/tests/src/Mod/Material/App/TestModel.cpp
+++ b/tests/src/Mod/Material/App/TestModel.cpp
@@ -22,10 +22,6 @@
 
 #include <gtest/gtest.h>
 
-#include <Mod/Material/App/PreCompiled.h>
-#ifndef _PreComp_
-#endif
-
 #include <QString>
 
 #include <App/Application.h>
diff --git a/tests/src/Mod/Material/App/TestModelProperties.cpp b/tests/src/Mod/Material/App/TestModelProperties.cpp
index 59fab7a253..05ae6f33a8 100644
--- a/tests/src/Mod/Material/App/TestModelProperties.cpp
+++ b/tests/src/Mod/Material/App/TestModelProperties.cpp
@@ -22,10 +22,6 @@
 
 #include <gtest/gtest.h>
 
-#include <Mod/Material/App/PreCompiled.h>
-#ifndef _PreComp_
-#endif
-
 #include <QMetaType>
 #include <QString>