madeira-port

https://github.com/nikodemus/madeira-port.git


    git clone 'https://github.com/nikodemus/madeira-port.git'
      

      

(ql:quickload :madeira-port)

★7

MADEIRA-PORT

Indended to be used mainly as :DEFSYSTEM-DEPENDS-ON dependency in ASDF systems, but can also be useful outside ASDF systems.

The provided component class :MADEIRA-PORT makes it easy to specify implementation (or feature) dependent files as part of an ASDF system definition:

(:MADEIRA-PORT :WHEN )

Specifies that the file is to be compiled and loaded only when the
feature expression evaluates to true under FEATURE-EVAL for the
current implementation.

(:MADEIRA-PORT :UNLESS )

Specifies that the file is to be compiled and loaded only when the
feature expression evaluates to false under FEATURE-EVAL for the
current implementation.

Example:

(defsystem :foo
  :serial t
  :defsystem-depends-on (:madeira-port)
  :components
  ((:file "package")
   (:module "ports"
    :components
    ((:madeira-port "sbcl" :when :sbcl)
     (:madeira-port "ccl" :when :ccl)
     (:madeira-port "ansi" :unless (:or :sbcl :ccl))))
   (:file "foo")))

Also provides FEATURE-EVAL mentioned above, which supports extended feature syntax, allowing expression such as

(:FIND-FUNCTION #:EXIT :SB-EXT)

Finally, exposes FEATURE-EVAL via EXTEND-FEATURE-SYNTAX, which copies the current readtable, adds extended versions of #+ and #- read macros to it, and assigns it to READTABLE.