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[bug#39231] [PATCH] Correctly treat empty or unset $XDG

From: Alexander Krotov
Subject: [bug#39231] [PATCH] Correctly treat empty or unset $XDG_DATA_DIRS
Date: Wed, 22 Jan 2020 02:01:33 +0300

If $XDG_DATA_DIRS is unset, default value of "/usr/local/share:/usr/share"
is used according to XDG Base Directory Specification. However,
/etc/profile.d/ treats this value as empty list when appending its
own directory, so after installing Guix on the system, launchers such
as Rofi stop searching for .desktop files in /usr/share/applications/
and can't launch applications other than those installed with Guix.

This patch fixes the bug in generated /etc/profile.d/

* etc/ (sys_create_init_profile): Use default value of
  /usr/local/share:/usr/share/ before appending if $XDG_DATA_DIRS is not
 etc/ | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/etc/ b/etc/
index b57d71981f..da781d41ff 100755
--- a/etc/
+++ b/etc/
@@ -409,7 +409,7 @@ export GUIX_PROFILE GUIX_LOCPATH
 eval `guix package --search-paths=prefix 2> /dev/null`
 # set XDG_DATA_DIRS to include Guix installations

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