From a6e7bdf849ad76678e9f5c04108ebdb9317eb7cc Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Mon, 3 May 2021 17:37:58 +0200
Subject: [PATCH] allow to enable PCH for gcc and clang

---
 src/App/PreCompiled.h          | 5 +++++
 src/Base/PreCompiled.h         | 6 ++++++
 src/Mod/Mesh/App/PreCompiled.h | 2 +-
 src/Mod/Part/App/PreCompiled.h | 4 ++--
 src/Mod/Part/Gui/PreCompiled.h | 3 +++
 5 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/src/App/PreCompiled.h b/src/App/PreCompiled.h
index f72e640986..9c232c7a7e 100644
--- a/src/App/PreCompiled.h
+++ b/src/App/PreCompiled.h
@@ -58,6 +58,11 @@
 #include <crtdbg.h>
 #endif
 
+#if defined(FC_OS_LINUX) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
+#include <unistd.h>
+#include <pwd.h>
+#include <sys/types.h>
+#endif
 
 // Streams
 #include <iostream>
diff --git a/src/Base/PreCompiled.h b/src/Base/PreCompiled.h
index e8d46c4696..96e90f53b5 100644
--- a/src/Base/PreCompiled.h
+++ b/src/Base/PreCompiled.h
@@ -55,6 +55,12 @@
 #include <Rpc.h>
 #endif
 
+#if defined (FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
+#include <dirent.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#endif
+
 // STL
 #include <string>
 #include <list>
diff --git a/src/Mod/Mesh/App/PreCompiled.h b/src/Mod/Mesh/App/PreCompiled.h
index 9664300df5..35b6aaca28 100644
--- a/src/Mod/Mesh/App/PreCompiled.h
+++ b/src/Mod/Mesh/App/PreCompiled.h
@@ -53,7 +53,6 @@
 #include <float.h>
 #include <fcntl.h>
 #include <ios>
-#include <io.h>
 
 #ifdef FC_USE_GTS
 #  include <gts.h>
@@ -75,6 +74,7 @@
 // FIXME: Causes problem with boost/numeric/bindings/lapack/syev.hpp(117)
 #ifdef FC_OS_WIN32
 //# include <windows.h>
+#include <io.h>
 #endif
 
 #include <boost/algorithm/string/replace.hpp>
diff --git a/src/Mod/Part/App/PreCompiled.h b/src/Mod/Part/App/PreCompiled.h
index 08731fb722..bb9b1cb04f 100644
--- a/src/Mod/Part/App/PreCompiled.h
+++ b/src/Mod/Part/App/PreCompiled.h
@@ -53,7 +53,6 @@
 #include <iostream>
 #include <sstream>
 #include <stdio.h>
-#include <io.h>
 #include <fcntl.h>
 #include <assert.h>
 
@@ -101,7 +100,8 @@
 #ifndef NOMINMAX
 #define NOMINMAX
 #endif
-#include <windows.h>
+#include <Windows.h>
+#include <io.h>
 #endif //_PreComp_
 
 #ifndef _Standard_Version_HeaderFile
diff --git a/src/Mod/Part/Gui/PreCompiled.h b/src/Mod/Part/Gui/PreCompiled.h
index beff950e4d..72f2d65423 100644
--- a/src/Mod/Part/Gui/PreCompiled.h
+++ b/src/Mod/Part/Gui/PreCompiled.h
@@ -195,6 +195,9 @@
 #   include <OpenGL/gl.h>
 #   include <OpenGL/glext.h>
 #  else
+#   ifndef GL_GLEXT_PROTOTYPES
+#    define GL_GLEXT_PROTOTYPES 1
+#   endif
 #   include <GL/gl.h>
 #   include <GL/glext.h>
 #  endif //FC_OS_MACOSX