07/17: gnu: aspell: 'dict-dir' set to ~/.guix-profile/lib/aspell or $ASPELL_DICT_DIR.

[Ludovic Courtès]

civodul pushed a commit to branch version-0.13.0
in repository guix.

commit 56a03975eb287796128e80feb6799bc07f4b8185
Author: Ludovic Courtès <address@hidden>
Date:   Wed May 17 16:10:48 2017 +0200

    gnu: aspell: 'dict-dir' set to ~/.guix-profile/lib/aspell or 
$ASPELL_DICT_DIR.
    
    See <https://bugs.gnu.org/25836> for background.
    
    * gnu/packages/patches/aspell-default-dict-dir.patch: New file.
    * gnu/packages/aspell.scm (aspell)[source](patches): New field.
    [native-search-paths]: New field.
    * gnu/local.mk (dist_patch_DATA): Add it.
---
 gnu/local.mk                                       |  1 +
 gnu/packages/aspell.scm                            | 18 +++++++++++++++---
 gnu/packages/patches/aspell-default-dict-dir.patch | 20 ++++++++++++++++++++
 3 files changed, 36 insertions(+), 3 deletions(-)

diff --git a/gnu/local.mk b/gnu/local.mk
index 2da002b..ca26bcd 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -499,6 +499,7 @@ dist_patch_DATA =                                           
\
   %D%/packages/patches/antiword-CVE-2014-8123.patch                    \
   %D%/packages/patches/apr-skip-getservbyname-test.patch       \
   %D%/packages/patches/artanis-fix-Makefile.in.patch           \
+  %D%/packages/patches/aspell-default-dict-dir.patch           \
   %D%/packages/patches/ath9k-htc-firmware-binutils.patch       \
   %D%/packages/patches/ath9k-htc-firmware-gcc.patch            \
   %D%/packages/patches/ath9k-htc-firmware-objcopy.patch                \
diff --git a/gnu/packages/aspell.scm b/gnu/packages/aspell.scm
index 06ba2ce..509d428 100644
--- a/gnu/packages/aspell.scm
+++ b/gnu/packages/aspell.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <address@hidden>
+;;; Copyright © 2013, 2014, 2015, 2017 Ludovic Courtès <address@hidden>
 ;;; Copyright © 2015, 2016 Alex Kost <address@hidden>
 ;;; Copyright © 2016 John Darrington <address@hidden>
 ;;; Copyright © 2016 Efraim Flashner <address@hidden>
@@ -26,6 +26,7 @@
   #:use-module (guix download)
   #:use-module (guix build-system gnu)
   #:use-module (guix licenses)
+  #:use-module (gnu packages)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages base))
 
@@ -40,7 +41,8 @@
                           version ".tar.gz"))
       (sha256
        (base32
-        "1qgn5psfyhbrnap275xjfrzppf5a83fb67gpql0kfqv37al869gm"))))
+        "1qgn5psfyhbrnap275xjfrzppf5a83fb67gpql0kfqv37al869gm"))
+      (patches (search-patches "aspell-default-dict-dir.patch"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases
@@ -53,6 +55,15 @@
                  '("ASPELL_CONF" "" =
                    ("${ASPELL_CONF:-\"dict-dir 
${GUIX_PROFILE:-$HOME/.guix-profile}/lib/aspell\"}")))))))))
     (inputs `(("perl" ,perl)))
+
+    (native-search-paths
+     ;; This is a Guix-specific environment variable that takes a single
+     ;; entry, not an actual search path.
+     (list (search-path-specification
+            (variable "ASPELL_DICT_DIR")
+            (separator #f)
+            (files '("lib/aspell")))))
+
     (home-page "http://aspell.net/";)
     (synopsis "Spell checker")
     (description
@@ -66,7 +77,8 @@ dictionaries, including personal ones.")
 ;;; Dictionaries.
 ;;;
 ;;; Use 'export ASPELL_CONF="dict-dir $HOME/.guix-profile/lib/aspell"' to use
-;;; them.
+;;; them, or set the Guix-specific 'ASPELL_DICT_DIR', or just do nothing (as
+;;; long as 'HOME' is set, that's fine!).
 ;;;
 
 (define* (aspell-dictionary dict-name full-name
diff --git a/gnu/packages/patches/aspell-default-dict-dir.patch 
b/gnu/packages/patches/aspell-default-dict-dir.patch
new file mode 100644
index 0000000..17a6ff6
--- /dev/null
+++ b/gnu/packages/patches/aspell-default-dict-dir.patch
@@ -0,0 +1,20 @@
+This patch changes the default value of 'dict-dir' to correspond
+to ~/.guix-profile/lib/aspell rather than $prefix/lib/aspell-X.Y.
+
+This is not strictly necessary for the 'aspell' program itself since
+one can simply set "ASPELL_CONF=dict-dir $HOME/.guix-profile/lib/aspell".
+However it is necessary for applications that use libaspell since
+'ASPELL_CONF' is not honored in this case.  See <https://bugs.gnu.org/25836>.
+
+--- a/common/config.cpp
++++ b/common/config.cpp
+@@ -1349,6 +1349,9 @@ namespace acommon {
+ #  define REPL     ".aspell.<lang>.prepl"
+ #endif
+ 
++#undef DICT_DIR
++#define DICT_DIR "<$ASPELL_DICT_DIR|home-dir/.guix-profile/lib/aspell>"
++
+   static const KeyInfo config_keys[] = {
+     // the description should be under 50 chars
+     {"actual-dict-dir", KeyInfoString, "<dict-dir^master>", 0}