diff --git a/src/INSTALL b/src/INSTALL
index 0c01ef2..2269e41 100644
--- a/src/INSTALL
+++ b/src/INSTALL
@@ -7,15 +7,15 @@
 1. Generic
 2. Unix
 3. RISC OS
-4. Macintosh
-5. OS/2 (with EMX 0.9b)
-6. Atari MiNT
+4. OS/2 (with EMX 0.9b)
+5. Atari MiNT
 
-For OS/390 Unix see ../runtime/doc/os_390.txt
-For BeBox see ../runtime/doc/os_beos.txt.
-For Amiga see INSTALLami.txt
-For PC (MS-DOS, Windows NT, Windows 95) see INSTALLpc.txt
-For Macintosh see INSTALLmac.txt
+See INSTALLami.txt              for Amiga
+See INSTALLmac.txt              for Macintosh
+See INSTALLpc.txt               for PC (MS-DOS, Windows 95/98/NT/XP)
+See INSTALLvms.txt              for VMS
+See ../runtime/doc/os_390.txt   for OS/390 Unix
+See ../runtime/doc/os_beos.txt  for BeBox
 
 
 1. Generic
@@ -37,7 +37,7 @@
 
 This will include the GUI and X11 libraries, if you have them.  If you want a
 version of Vim that is small and starts up quickly, see the Makefile for how
-to disable the GUI and X11.  If you don't have Motif and/or X11, these
+to disable the GUI and X11.  If you don't have GUI libraries and/or X11, these
 features will be disabled automatically.
 
 See the start of Makefile for more detailed instructions about how to compile
@@ -87,8 +87,10 @@
 
 Unix: COMPILING WITH/WITHOUT GUI
 
+NOTE: This is incomplete, look in Makefile for more info.
+
 These configure arguments can be used to select which GUI to use:
---enable-gui=	gtk, kde, motif, athena or auto
+--enable-gui=gtk      or: gtk2, motif, athena or auto
 --disable-gtk-check
 --disable-motif-check
 --disable-athena-check
@@ -98,24 +100,28 @@
 does not proceed to check any of the remaining ones.  Otherwise, it moves on
 to the next one.
 
---enable-{gtk,kde,motif,athena}-check all default to "yes", such that if
+--enable-{gtk,gtk2,kde,motif,athena}-check all default to "yes", such that if
 --enable-gui is "auto" (which it is by default), GTK, Motif, and Athena will
 be checked for.  If you want to *exclude* a certain check, then you use
---disable-{gtk,kde,motif,athena}-check.
+--disable-{gtk,gtk2,kde,motif,athena}-check.
 
 For example, if --enable-gui is set to "auto", but you don't want it look for
 Motif, you then also specify --disable-motif-check.  This results in only
 checking for GTK and Athena.
 
 Lastly, if you know which one you want to use, then you can just do
---enable-gui={gtk,kde,motif,athena}.  So if you wanted to only use Motif, then
-you'd specify --enable-gui=motif.  Once you specify what you want, the
---enable-{gtk,kde,motif,athena}-check options are ignored.
+--enable-gui={gtk,gtk2,kde,motif,athena}.  So if you wanted to only use Motif,
+then you'd specify --enable-gui=motif.  Once you specify what you want, the
+--enable-{gtk,gtk2,kde,motif,athena}-check options are ignored.
+
+On Linux you usually need GUI "-devel" packages.  You may already have GTK
+libraries installed, but that doesn't mean you can compile Vim with GTK, you
+also need the header files.
 
 For compiling with the GTK+ GUI, you need a recent version of glib and gtk+.
-Configure checks for at least version 1.1.16, but below 2.0.  An older versions
-is not selected automatically.  If you want to use it anyway, run configure
-with "--disable-gtktest".  GTK 2.0 doesn't work yet.
+Configure checks for at least version 1.1.16.  An older version is not selected
+automatically.  If you want to use it anyway, run configure with
+"--disable-gtktest".
 GTK requires an ANSI C compiler.  If you fail to compile Vim with GTK+ (it
 is the preferred choice), try selecting another one in the Makefile.
 If you are sure you have GTK installed, but for some reason configure says you
@@ -124,7 +130,8 @@
 auto/config.log for any error messages that may give you a hint as to what's
 happening.
 
-For KDE see INSTALLkde.txt.
+There used to be a KDE version of Vim, using Qt libraries, but since it didn't
+work very well and there was no maintainer it was dropped.
 
 
 Unix: COMPILING WITH MULTI-BYTE
@@ -170,18 +177,11 @@
 Do
     :help riscos
 
-within the editor for more information, or read the os_riscos.txt help file.
+within the editor for more information, or read the
+../runtime/doc/os_risc.txt help file.
 
 
-4. Macintosh
-============
-
-Vim should work on the Macintosh, but I don't have a makefile for it.
-Work is being done to update the Macintosh port.  It's a lot of work; don't
-expect it soon.
-
-
-5. OS/2
+4. OS/2
 =======
 
 Summary:
@@ -223,14 +223,15 @@
   need to set TERM for other programs, you may consider putting
   set term=os2ansi in the vimrc file.
 
-Check vim_os2.txt for additional info on running Vim.
+Check ../runtime/doc/os_os2.txt for additional info on running Vim.
 
 
-6. Atari MiNT
+5. Atari MiNT
 =============
 
+[NOTE: this is quite old, it might not work anymore]
 
-To compile Vim for MiNT you may either copy makefile.mint to Makefile or use
+To compile Vim for MiNT you may either copy Make_mint.mak to Makefile or use
 the Unix Makefile adapted for the MiNT configuration.
 
 Now proceed as described in the Unix section.