[Lilypond-auto] Issue 2758 in lilypond: ly_module_lookup caused deprecation warnings when LilyPond running with Guile V2.06

[lilypond]

Status: Started
Owner: address@hidden
Labels: Type-Enhancement

New issue 2758 by address@hidden: ly_module_lookup caused deprecation  
warnings when LilyPond running with Guile V2.06
http://code.google.com/p/lilypond/issues/detail?id=2758

The current definition of ly_module_lookup in module-scheme.cc uses two  
functions, scm_sym2var and scm_module_lookup_closure, which issue  
deprecation warnings in Guile V2.06.  A call to the new Guile API function,  
scm_module_variable, provides the functionality for both deprecated  
routines, but has not been back-ported to Guile V1.8.

This patch adds a conditionally-compiled shim function definition for   
scm_module_variable when running with a Guile version < V2.0, and has  
ly_module_lookup call scm_module_variable.