Add instrunctions how to (cross-)compile win32/win64 binaries on Linux, Darwin or Cygwin

1 files changed, 36 insertions, 8 deletions

diff --git a/win/README b/win/README
index 5e3d00f..36537ba 100644
--- a/win/README
+++ b/win/README
@@ -24,7 +24,28 @@ In order to compile Tcl for Windows, you need the following:
 
 	or
 
-	Msys + Mingw [http://www.mingw.org/download.shtml]
+	Linux + MinGW-w64 [http://mingw-w64.sourceforge.net/]
+	    (win32 or win64)
+
+	or
+
+	Cygwin + MinGW-w64 [http://cygwin.com/install.html]
+	    (win32 or win64)
+
+	or
+
+	Darwin + MinGW-w64 [http://mingw-w64.sourceforge.net/]
+	    (win32 or win64)
+
+	or
+
+	Msys + MinGW-w64 [http://mingw-w64.sourceforge.net/]
+	    (win32 or win64)
+
+	or
+
+	Msys + MinGW [http://www.mingw.org/download.shtml]
+	    (win32 only)
 
 
 In practice, this release is built with Visual C++ 6.0 and the TEA
@@ -40,19 +61,26 @@ using it, are in the comments of "makefile.vc".  A quick example would be:
 There is also a Developer Studio workspace and project file, too, if you
 would like to use them.
 
-If you are building with Msys, you can use the configure script that lives
-in the win subdirectory. The Msys based configure/build process works just
-like the UNIX one, so you will want to refer to ../unix/README for
-available configure options. An error will be generated by the configure
-script if you try to compile Tcl with the Cygwin version of gcc instead of
-the Mingw version. Check your PATH if you get this error.
+If you are building with Linux, Cygwin or Msys, you can use the configure
+script that lives in the win subdirectory. The Linux/Cygwin/Msys based
+configure/build process works just like the UNIX one, so you will want
+to refer to ../unix/README for available configure options.
+
+If you want 64-bit executables (x86_64), you need to configure using
+the --enable-64bit option. Make sure that the x86_64-w64-mingw32
+compiler is present. For Cygwin this compiler can be found in the
+"mingw64-x86_64-gcc-core" package, which can be installed through
+the normal Cygwin install process. If you only want 32-bit executables,
+the "mingw64-i686-gcc-core" package is what you need. For Linux, Darwin
+and Msys, you can download a suitable win32 or win64 compiler from
+[https://sourceforge.net/projects/mingw-w64/files/]
 
 Use the Makefile "install" target to install Tcl.  It will install it
 according to the prefix options you provided in the correct directory
 structure.
 
 Note that in order to run tclsh84.exe, you must ensure that tcl84.dll
-and tclpip84.dll are on your path, in the system directory, or in the 
+and tclpip84.dll are on your path, in the system directory, or in the
 directory containing tclsh84.exe.
 
 Note: Tcl no longer provides support for Win32s.