remove wine path from doxygen_chm: instead add some comments with urls about where to get hhc.exe.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@52508 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/doxygen/Doxyfile_chm

@@ -23,4 +23,23 @@ GENERATE_PERLMOD       = NO
 GENERATE_AUTOGEN_DEF   = NO
 GENERATE_TAGFILE       =
 
-HHC_LOCATION           = ~/.wine/drive_c/Programmi/HTMLHelpWorkshop/hhc.exe
+# Notes about the HTML HELP COMPILER (hhc):
+# hhc is the compiler used to produce CHM files from the HTML sources.
+#
+# => for Windows:
+#    you can download it for free from MS website:
+#      http://www.microsoft.com/downloads/details.aspx?FamilyID=00535334-c8a6-452f-9aa0-d597d16580cc&displaylang=en
+#    then set the HHC_PATH environment variable to the folder where you
+#    installed HHC; see e.g. http://www.computerhope.com/issues/ch000549.htm
+#    for more info about how to set env variables in WinXP or newer.
+#
+# => for Unix: 
+#    you can install the Windows version of the compiler under WINE 
+#    (http://www.winehq.org/) following the instructions placed here:
+#      http://appdb.winehq.org/objectManager.php?sClass=application&iId=2140
+#    then you can place hhc.exe executable in your PATH; e.g. you can add to
+#    your ~/.bashrc (if you use bash): 
+#      PATH=$PATH:~/.wine/drive_c/Programmi/HTMLHelpWorkshop/hhc
+#      export PATH
+#
+HHC_LOCATION           = hhc.exe