Create directory DIR and all its ancestors.

Read LEN bytes from IN or as much data as possible if LEN is #f, and write it to OUT, using chunks of BUFFER-SIZE bytes. Call PROGRESS at the beginning and after each successful transfer of BUFFER-SIZE bytes or less, passing it the total number of bytes transferred and the continuation of the transfer as a thunk.

Find a sub-directory named DIRECTORY among the INPUTS and return its absolute file name.

DIRECTORY must be a string like "xml/dtd/docbook". If DIRECTORY is not found, an exception is raised.

Return the list of directories among FILES of the given TYPE (a symbol as returned by 'stat:type') that exist in INPUT-DIRS. Example:

(search-path-as-list '("share/emacs/site-lisp" "share/emacs/24.1") (list "/package1" "/package2" "/package3")) => ("/package1/share/emacs/site-lisp" "/package3/share/emacs/site-lisp")

When PATTERN is true, it is a regular expression denoting file names to look for under the directories designated by FILES. For example:

(search-path-as-list '("xml") (list docbook-xml docbook-xsl) #:type 'regular #:pattern "^catalog\\.xml$") => ("/…/xml/dtd/docbook/catalog.xml" "/…/xml/xsl/docbook-xsl-1.78.1/catalog.xml")

This is like 'every', but process all the elements of LST instead of stopping as soon as PRED returns false. This is useful when PRED has side effects, such as displaying warnings or error messages.

Find a file named FILE among the INPUTS and return its absolute file name.

FILE must be a string like "bin/sh". If FILE is not found, an exception is raised.

Return the name of the compressor package/binary used to compress or decompress FILE-NAME, based on its file extension, else false.

Report to PORT about C, an '&invoke-error' condition, in a human-friendly way.

Invoke PROGRAM with the given ARGS. Raise an exception if the exit code is non-zero; otherwise return #t.

Return true if FILE starts with the right magic bytes.

Return true if FILE starts with the right magic bytes.

Invoke PROGRAM with ARGS and capture PROGRAM's standard output and standard error. If PROGRAM succeeds, print nothing and return the unspecified value; otherwise, raise a '&message' error condition that includes the status code and the output of PROGRAM.

Build the given package, applying all of PHASES in order.

Build the given waf application, applying all of PHASES in order.

Build the given Zig package, applying all of PHASES in order.