Well, it's been two weeks and no responses, so I had to find out myself by learning a lot of cmake. Here I attach some code that will fix the issue:

Index: Plugins.cmake
===================================================================
--- Plugins.cmake    (revisión: 2149)
+++ Plugins.cmake    (copia de trabajo)
@@ -3,13 +3,29 @@
 # Last edited: 2009-09-17 09:34:24 by piumarta on ubuntu.piumarta.com
 
 FILE (STRINGS ${src}/plugins.int plugins_int)
-STRING (REGEX REPLACE ".*= (.*)" "\\1" plugins_int ${plugins_int})
-STRING (REPLACE " " ";" plugins_int ${plugins_int})
+STRING (REGEX REPLACE ".*=(.*)" "\\1" plugins_int ${plugins_int})
 
+SET (plugins_int_str None)
+SET (plugins_ext_str None)
+
+IF (plugins_int)
+  STRING (STRIP plugin_int ${plugins_int})
+  SET (plugins_int_str ${plugins_int})
+  STRING (REPLACE " " ";" plugins_int ${plugins_int})
+ENDIF ()
+
 FILE (STRINGS ${src}/plugins.ext plugins_ext)
-STRING (REGEX REPLACE ".*= (.*)" "\\1" plugins_ext ${plugins_ext})
-STRING (REPLACE " " ";" plugins_ext ${plugins_ext})
+STRING (REGEX REPLACE ".*=(.*)" "\\1" plugins_ext ${plugins_ext})
 
+IF (plugins_ext)
+  STRING (STRIP plugin_ext ${plugins_ext})
+  SET (plugins_ext_str ${plugins_ext})
+  STRING (REPLACE " " ";" plugins_ext ${plugins_ext})
+ENDIF ()
+
+MESSAGE(STATUS internal plugins: "${plugins_int_str}")
+MESSAGE(STATUS external plugins: "${plugins_ext_str}")
+
 FILE (GLOB plugins_vm RELATIVE ${unix} ${unix}/vm-*)
 
 FILE_COPY (${bld}/disabledPlugins.c ${config}/disabledPlugins.c)

Regards,
            Javier.

On Thu, Feb 4, 2010 at 2:09 AM, melkyades <elpochodelagente@gmail.com> wrote:


Hi, I'm trying to compile my own vm on linux (ubuntu 9.10, gcc 4.4.1, cmake
2.8.0) and found that, after generating the C sources, configure script will
fail in cmake if you don't use at least one internal and one external
plugin. This seems get fixed if I use at least one internal plugin (anyone)
and at least one external. Did anybody have this problem too??

Here is a small part of the error message (the entire one is longer):

...

-- vm-sound-pulse: /usr/lib/libpulse-simple.so
-- vm-sound-ALSA: /usr/include/alsa/asoundlib.h
-- vm-sound-ALSA: /usr/lib/libasound.so
-- vm-sound-Sun: sys/audioio.h not found
-- vm-sound-Sun: sun/audioio.h not found
-- vm-sound-Sun: /usr/include/stropts.h
!! vm-sound-Sun disabled
-- vm-sound-OSS: /usr/include/alsa/asoundlib.h
-- vm-sound-OSS: /usr/lib/libasound.so
!! vm-sound-MacOSX disabled
CMake Error: Error in cmake code at
/home/javier/st/squeak-svn/bld/#/CMakeLists.txt:16:
Parse error.  Function missing ending ")".  End of file reached.
You have called ADD_LIBRARY for library Automatically without any source
files. This typically indicates a problem with your CMakeLists.txt file
You have called ADD_LIBRARY for library generated without any source files.
This typically indicates a problem with your CMakeLists.txt file
You have called ADD_LIBRARY for library makefile without any source files.
This typically indicates a problem with your CMakeLists.txt file
You have called ADD_LIBRARY for library include without any source files.
This typically indicates a problem with your CMakeLists.txt file
You have called ADD_LIBRARY for library for without any source files. This
typically indicates a problem with your CMakeLists.txt file
You have called ADD_LIBRARY for library internal without any source files.
This typically indicates a problem with your CMakeLists.txt file
You have called ADD_LIBRARY for library pluginsINTERNAL_PLUGINS without any
source files. This typically indicates a problem with your CMakeLists.txt
file
CMake Warning (dev) at /home/javier/st/squeak-svn/bld/=/CMakeLists.txt:1
(ADD_DEFINITIONS):
 Syntax error in cmake code at

   /home/javier/st/squeak-svn/bld/=/CMakeLists.txt:1

 when parsing string

   ${=_definitions}

 syntax error, unexpected cal_SYMBOL, expecting } (16)

 Policy CMP0010 is not set: Bad variable reference syntax is an error.  Run
 "cmake --help-policy CMP0010" for policy details.  Use the cmake_policy
 command to set the policy and suppress this warning.
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at /home/javier/st/squeak-svn/bld/=/CMakeLists.txt:2
(LINK_DIRECTORIES):
 Syntax error in cmake code at

   /home/javier/st/squeak-svn/bld/=/CMakeLists.txt:2

 when parsing string

   ${=_link_directories}

 syntax error, unexpected cal_SYMBOL, expecting } (21)

...


--
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--
Javier Pimás
Ciudad de Buenos Aires