make: Guile Function
8.14 The 'guile' Function
=========================
If GNU 'make' is built with support for GNU Guile as an embedded
extension language then the 'guile' function will be available. The
'guile' function takes one argument which is first expanded by 'make' in
the normal fashion, then passed to the GNU Guile evaluator. The result
of the evaluator is converted into a string and used as the expansion of
the 'guile' function in the makefile. See 
GNU Guile Integration
Guile Integration. for details on writing extensions to 'make' in Guile.
You can determine whether GNU Guile support is available by checking
the '.FEATURES' variable for the word GUILE.
Info Catalog
make: Shell Function
make: Functions