Remove most uses of the _IO*F constants.

These constants, for use with 'setvbuf', were deprecated in Guile 2.2
and disappeared in Guile 3.0.  Here we keep these constants in
build-side code where removing them is not feasible.

* guix/build/download-nar.scm (download-nar): Adjust 'setvbuf' calls to
the Guile 2.2+ API.
* guix/build/download.scm (open-socket-for-uri): Likewise.
(open-connection-for-uri, url-fetch): Likewise.
* guix/build/make-bootstrap.scm (make-stripped-libc): Likewise.
* guix/build/union.scm (setvbuf) [guile-2.0]: New conditional wrapper.
(union-build): Adjust to new API.
* guix/ftp-client.scm (ftp-open, ftp-list, ftp-retr): Likewise.
* guix/http-client.scm (http-fetch): Likewise.
* guix/inferior.scm (proxy): Likewise.
* guix/scripts/substitute.scm (fetch, http-multiple-get): Likewise.
* guix/self.scm (compiled-modules): Likewise.
* guix/ssh.scm (remote-daemon-channel, store-import-channel)
(store-export-channel): Likewise.
* guix/ui.scm (initialize-guix): Likewise.
* tests/publish.scm (http-get-port): Likewise.
* guix/store.scm (%newlines): Adjust comment.

4 files changed, 27 insertions, 14 deletions

diff --git a/guix/build/download-nar.scm b/guix/build/download-nar.scm
index 13f01fb1e8..681f22238d 100644
--- a/guix/build/download-nar.scm
+++ b/guix/build/download-nar.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2017 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2017, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -93,8 +93,8 @@ ITEM."
   "Download and extract the normalized archive for ITEM.  Return #t on
 success, #f otherwise."
   ;; Let progress reports go through.
-  (setvbuf (current-error-port) _IONBF)
-  (setvbuf (current-output-port) _IONBF)
+  (setvbuf (current-error-port) 'none)
+  (setvbuf (current-output-port) 'none)
 
   (let loop ((urls (urls-for-item item)))
     (match urls
diff --git a/guix/build/download.scm b/guix/build/download.scm
index 24b5aa378f..c08221b3b2 100644
--- a/guix/build/download.scm
+++ b/guix/build/download.scm
@@ -357,7 +357,7 @@ ETIMEDOUT error is raised."
           (connect* s (addrinfo:addr ai) timeout)
 
           ;; Buffer input and output on this port.
-          (setvbuf s _IOFBF)
+          (setvbuf s 'block)
           ;; If we're using a proxy, make a note of that.
           (when http-proxy (set-http-proxy-port?! s #t))
           s)
@@ -401,7 +401,7 @@ VERIFY-CERTIFICATE? is true, verify HTTPS server certificates."
     (with-https-proxy
      (let ((s (open-socket-for-uri uri #:timeout timeout)))
        ;; Buffer input and output on this port.
-       (setvbuf s _IOFBF %http-receive-buffer-size)
+       (setvbuf s 'block %http-receive-buffer-size)
 
        (if https?
            (tls-wrap s (uri-host uri)
@@ -777,11 +777,11 @@ otherwise simply ignore them."
                               hashes))
                 content-addressed-mirrors))
 
-  ;; Make this unbuffered so 'progress-report/file' works as expected.  _IOLBF
+  ;; Make this unbuffered so 'progress-report/file' works as expected.  'line
   ;; means '\n', not '\r', so it's not appropriate here.
-  (setvbuf (current-output-port) _IONBF)
+  (setvbuf (current-output-port) 'none)
 
-  (setvbuf (current-error-port) _IOLBF)
+  (setvbuf (current-error-port) 'line)
 
   (let try ((uri (append uri content-addressed-uris)))
     (match uri
diff --git a/guix/build/make-bootstrap.scm b/guix/build/make-bootstrap.scm
index 43b136248f..48799f7e90 100644
--- a/guix/build/make-bootstrap.scm
+++ b/guix/build/make-bootstrap.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2015, 2017 Manolis Fragkiskos Ragkousis <manolis837@gmail.com>
-;;; Copyright © 2015 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -67,7 +67,7 @@ when producing a bootstrap libc."
 util).*\\.so(\\..*)?|lib(machuser|hurduser).so.*|(libc(rt|)|libpthread)\
 _nonshared\\.a)$")
 
-  (setvbuf (current-output-port) _IOLBF)
+  (setvbuf (current-output-port) 'line)
   (let* ((libdir (string-append output "/lib")))
     (mkdir-p libdir)
     (for-each (lambda (file)
diff --git a/guix/build/union.scm b/guix/build/union.scm
index fff795c4d3..961ac3298b 100644
--- a/guix/build/union.scm
+++ b/guix/build/union.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2017 Huang Ying <huang.ying.caritas@gmail.com>
 ;;;
@@ -39,6 +39,19 @@
 ;;;
 ;;; Code:
 
+;; This code can be used with the bootstrap Guile, which is Guile 2.0, so
+;; provide a compatibility layer.
+(cond-expand
+  ((and guile-2 (not guile-2.2))
+   (define (setvbuf port mode . rest)
+     (apply (@ (guile) setvbuf) port
+            (match mode
+              ('line _IOLBF)
+              ('block _IOFBF)
+              ('none _IONBF))
+            rest)))
+  (else #f))
+
 (define (files-in-directory dirname)
   (let ((dir (opendir dirname)))
     (let loop ((files '()))
@@ -179,10 +192,10 @@ returns #f, skip the faulty file altogether."
                                    (reverse dirs-with-file))))
                      table)))
 
-  (setvbuf (current-output-port) _IOLBF)
-  (setvbuf (current-error-port) _IOLBF)
+  (setvbuf (current-output-port) 'line)
+  (setvbuf (current-error-port) 'line)
   (when (file-port? log-port)
-    (setvbuf log-port _IOLBF))
+    (setvbuf log-port 'line))
 
   (union-of-directories output (delete-duplicates inputs)))