Change README_OS2.txt. Tune build to pentium4

README_OS2.md

@@ -1,14 +1,14 @@
 # FeatherPad for OS/2 (by josch1710)
 
 ## Clipboard
-The Qt5 port doesn't support the system clipboard, yet
+Before version 5.15.2-1, the OS/2 port of Qt5 didn't support the system clipboard
 (cf https://github.com/bitwiseworks/qtbase-os2/issues/123).
-Because of this, FeatherPad can't support the system clipboard, either.
-The application clipboard will work, though.
+If you have an older version of Qt5, please update to the newest version.
+Otherwise, FeatherPad can't support the system clipboard. The application clipboard will work, though.
 
 ## Command line
 
-Because of limitation of Presentation Manager application, you will not see
+Because of limitations of Presentation Manager applications, you will not see
 any output on the command line. If you want to see the help or version strings
 on the command line, you have to redirect the output, e.g. `featherpad -h | tee -`.
 

featherpad/CMakeLists.txt

@@ -20,7 +20,7 @@ find_package(Qt${QT_VERSION_MAJOR} QUIET COMPONENTS LinguistTools)
 
 # OS/2 needs an additional lib and tune the processor
 if(OS2)
-  #add_definitions(-mtune=${CMAKE_SYSTEM_PROCESSOR} -march=${CMAKE_SYSTEM_PROCESSOR})
+  add_definitions(-mtune=pentium4 -march=pentium4)
   set(CMAKE_EXE_LINKER_FLAGS  "${CMAKE_EXE_LINKER_FLAGS} -lcx")
 endif()