configure: Install zsh completions where zsh will find them.

Zsh searches in the $fpath array for completion functions. By default
this includes $(prefix)/share/zsh/site-functions but not the existing
value. The prefix for zsh and notmuch isn't guaranteed to be the same
but it normally will be making this a better default for
zsh_completion_dir.

diff --git a/configure b/configure
index 79ef34b3627cf4f28ef37a363493fe29b1a1bbd6..fad2655c39ad4d2b6fbb0c85042f70059b15d418 100755 (executable)
--- a/configure
+++ b/configure
@@ -168,7 +168,7 @@ Fine tuning of some installation directories is available:
        --emacslispdir=DIR      Emacs code [PREFIX/share/emacs/site-lisp]
        --emacsetcdir=DIR       Emacs miscellaneous files [PREFIX/share/emacs/site-lisp]
        --bashcompletiondir=DIR Bash completions files [PREFIX/share/bash-completion/completions]
-       --zshcompletiondir=DIR  Zsh completions files [PREFIX/share/zsh/functions/Completion/Unix]
+       --zshcompletiondir=DIR  Zsh completions files [PREFIX/share/zsh/site-functions]
 
 Some features can be disabled (--with-feature=no is equivalent to
 --without-feature) :
@@ -1240,7 +1240,7 @@ desktop_dir = \$(prefix)/share/applications
 bash_completion_dir = ${BASHCOMPLETIONDIR:=\$(prefix)/share/bash-completion/completions}
 
 # The directory to which zsh completions files should be installed
-zsh_completion_dir = ${ZSHCOMLETIONDIR:=\$(prefix)/share/zsh/functions/Completion/Unix}
+zsh_completion_dir = ${ZSHCOMLETIONDIR:=\$(prefix)/share/zsh/site-functions}
 
 # Whether the canonicalize_file_name function is available (if not, then notmuch will
 # build its own version)