guix-install.sh: Create /etc/profile.d if it does not exist

* etc/guix-install.sh (sys_create_init_profile): Add code to create
/etc/profile.d if it somehow does not exist; the function still carries
on because it is possible that /etc/profile is still configured to read
the *.sh files from /etc/profile.d, if they exist.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

diff --git a/etc/guix-install.sh b/etc/guix-install.sh
index ff97c78..0e677c2 100755 (executable)
--- a/etc/guix-install.sh
+++ b/etc/guix-install.sh
@@ -395,6 +395,7 @@ sys_authorize_build_farms()
 
 sys_create_init_profile()
 { # Create /etc/profile.d/guix.sh for better desktop integration
+    [ -d "/etc/profile.d" ] || mkdir /etc/profile.d # Just in case
     cat <<"EOF" > /etc/profile.d/guix.sh
 # _GUIX_PROFILE: `guix pull` profile
 _GUIX_PROFILE="$HOME/.config/guix/current"