From 62794084568ab3bcb9a6dfdeb7d98ebb891e1668 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Fri, 25 Mar 2022 13:34:07 +0100
Subject: [PATCH] TD: [skip ci] activate PCH of TechDraw (App) For MSVC this
 reduces compile time by ~50%

---
 src/Mod/TechDraw/App/CMakeLists.txt | 7 ++++---
 src/Mod/TechDraw/App/PreCompiled.h  | 7 +++++++
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/Mod/TechDraw/App/CMakeLists.txt b/src/Mod/TechDraw/App/CMakeLists.txt
index dc072c28e5..3140772252 100644
--- a/src/Mod/TechDraw/App/CMakeLists.txt
+++ b/src/Mod/TechDraw/App/CMakeLists.txt
@@ -244,9 +244,10 @@ SOURCE_GROUP("Geometry" FILES ${Geometry_SRCS})
 SOURCE_GROUP("Python" FILES ${Python_SRCS})
 
 if(FREECAD_USE_PCH)
-    #add_definitions(-D_PreComp_)
-    #GET_MSVC_PRECOMPILED_SOURCE("PreCompiled.cpp" TechDrawCPP_SRCS ${TechDraw_SRCS} ${Draw_SRCS} )
-    #ADD_MSVC_PRECOMPILED_HEADER(TechDraw PreCompiled.h PreCompiled.cpp TechDrawCPP_SRCS)
+    add_definitions(-D_PreComp_)
+    GET_MSVC_PRECOMPILED_SOURCE("PreCompiled.cpp" PCH_SRCS ${TechDraw_SRCS} ${Draw_SRCS} ${TechDrawAlgos_SRCS}
+                                                           ${Geometry_SRCS} ${Python_SRCS})
+    ADD_MSVC_PRECOMPILED_HEADER(TechDraw PreCompiled.h PreCompiled.cpp PCH_SRCS)
 endif(FREECAD_USE_PCH)
 
 add_library(TechDraw SHARED ${TechDraw_SRCS} ${Draw_SRCS} ${TechDrawAlgos_SRCS}
diff --git a/src/Mod/TechDraw/App/PreCompiled.h b/src/Mod/TechDraw/App/PreCompiled.h
index 3a6b38cae4..be238291a3 100644
--- a/src/Mod/TechDraw/App/PreCompiled.h
+++ b/src/Mod/TechDraw/App/PreCompiled.h
@@ -61,12 +61,19 @@
 
 #include <boost/graph/boyer_myrvold_planar_test.hpp>
 #include <boost/graph/is_kuratowski_subgraph.hpp>
+#include <boost/regex.hpp>
 #include <boost/uuid/uuid.hpp>
 #include <boost/uuid/uuid_generators.hpp>
 #include <boost/uuid/uuid_io.hpp>
 
+#include <QFile>
+
 // OpenCasCade =====================================================================================
 #include <Mod/Part/App/OpenCascadeAll.h>
+#include <gce_MakeCirc.hxx>
+#include <HLRBRep_HLRToShape.hxx>
+#include <HLRBRep_PolyAlgo.hxx>
+#include <HLRBRep_PolyHLRToShape.hxx>
 
 #endif // _PreComp_
 #endif