@value{EFFECTIVE-VERSION} instead of 2.0 in some places in the manual

* doc/ref/history.texi (A Timeline of Selected Guile Releases): Update
  the 2.0 release blurb.

* doc/ref/api-foreign.texi (Modules and Extensions):
* doc/ref/libguile-extensions.texi (A Sample Guile Extension):
* doc/ref/tour.texi (Linking Guile into Programs): Use
  @value{EFFECTIVE-VERSION} instead of 2.0.  Also fix sample extension
  compilation line to include the Guile CFLAGS.

doc/ref/api-foreign.texi

@@ -360,8 +360,8 @@ When loaded with @code{(use-modules (foo bar))}, the
 @code{load-extension} call looks for the @file{foobar-c-code.so} (etc)
 object file in Guile's @code{extensiondir}, which is usually a
 subdirectory of the @code{libdir}. For example, if your libdir is
-@file{/usr/lib}, the @code{extensiondir} for the Guile 2.0.@var{x}
+@file{/usr/lib}, the @code{extensiondir} for the Guile @value{EFFECTIVE-VERSION}.@var{x}
-series will be @file{/usr/lib/guile/2.0/}.
+series will be @file{/usr/lib/guile/@value{EFFECTIVE-VERSION}/}.
 
 The extension path includes the major and minor version of Guile (the
 ``effective version''), because Guile guarantees compatibility within a
@@ -399,7 +399,7 @@ with the following in a @file{Makefile}, using @command{sed}
 
 @example
 foo.scm: foo.scm.in
-        sed 's|XXextensiondirXX|$(libdir)/guile/2.0|' <foo.scm.in >foo.scm
+        sed 's|XXextensiondirXX|$(libdir)/guile/@value{EFFECTIVE-VERSION}|' <foo.scm.in >foo.scm
 @end example
 
 The actual pattern @code{XXextensiondirXX} is arbitrary, it's only something

doc/ref/history.texi

@@ -1,6 +1,6 @@
 @c -*-texinfo-*-
 @c This is part of the GNU Guile Reference Manual.
-@c Copyright (C)  2008, 2010
+@c Copyright (C)  2008, 2010, 2011
 @c   Free Software Foundation, Inc.
 @c See the file guile.texi for copying conditions.
 
@@ -214,15 +214,15 @@ user-space threading was removed in favor of POSIX pre-emptive
 threads, providing true multiprocessing. Gettext support was added,
 and Guile's C API was cleaned up and orthogonalized in a massive way.
 
-@item 2.0 --- April 2010
+@item 2.0 --- 16 February 2010
 A virtual machine was added to Guile, along with the associated compiler
 and toolchain. Support for internationalization was finally
 reimplemented, in terms of unicode, locales, and libunistring. Running
 Guile instances became controllable and debuggable from within Emacs,
-via GDS and Geiser. Guile caught up to features found in a number of
+via Geiser. Guile caught up to features found in a number of other
-other Schemes: SRFI-18 threads, including thread cancellation,
+Schemes: SRFI-18 threads, module-hygienic macros, a profiler, tracer,
-module-hygienic macros, a profiler, tracer, and debugger, SSAX XML
+and debugger, SSAX XML integration, bytevectors, a dynamic FFI,
-integration, bytevectors, module versions, and partial support for R6RS.
+delimited continuations, module versions, and partial support for R6RS.
 @end table
 
 @node Status

doc/ref/libguile-extensions.texi

@@ -78,7 +78,8 @@ This C source file needs to be compiled into a shared library.  Here is
 how to do it on GNU/Linux:
 
 @smallexample
-gcc -shared -o libguile-bessel.so -fPIC bessel.c
+gcc `pkg-config --cflags guile-@value{EFFECTIVE-VERSION}` \
+  -shared -o libguile-bessel.so -fPIC bessel.c
 @end smallexample
 
 For creating shared libraries portably, we recommend the use of GNU

doc/ref/tour.texi

@@ -1,6 +1,6 @@
 @c -*-texinfo-*-
 @c This is part of the GNU Guile Reference Manual.
-@c Copyright (C)  1996, 1997, 2000, 2001, 2002, 2003, 2004, 2006, 2010
+@c Copyright (C)  1996, 1997, 2000, 2001, 2002, 2003, 2004, 2006, 2010, 2011
 @c   Free Software Foundation, Inc.
 @c See the file guile.texi for copying conditions.
 
@@ -115,7 +115,7 @@ can be compiled and linked like this:
 
 @example
 $ gcc -o simple-guile simple-guile.c \
-    `pkg-config --cflags --libs guile-2.0`
+    `pkg-config --cflags --libs guile-@value{EFFECTIVE-VERSION}`
 @end example
 
 When it is run, it behaves just like the @code{guile} program except