gnu: emacs-org-ql: Patch for Helm users.

The package has a Helm component that is missing the relevant `require` statements.
* gnu/packages/patches/emacs-helm-org-ql.patch: Add.
* gnu/local.mk (emacs-helm-org-ql): Add entry.
* gnu/packages/emacs-xyz.scm: Update and add dependencies.

gnu/local.mk

@@ -791,6 +791,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/emacs-dired-toggle-sudo-emacs-26.patch   \
   %D%/packages/patches/emacs-exec-path.patch			\
   %D%/packages/patches/emacs-fix-scheme-indent-function.patch	\
+  %D%/packages/patches/emacs-helm-org-ql.patch	                \
   %D%/packages/patches/emacs-json-reformat-fix-tests.patch	\
   %D%/packages/patches/emacs-highlight-stages-add-gexp.patch	\
   %D%/packages/patches/emacs-scheme-complete-scheme-r5rs-info.patch	\

gnu/packages/emacs-xyz.scm

@@ -11757,6 +11757,9 @@ according to a parsing expression grammar.")
                 (sha256
                  (base32
                   "0apcg63xm0242mjgsgw0jrcda4p4iqj7fy3sgh0p7khi4hrs5ch0"))
+                (patches
+                 (search-patches
+                  "emacs-helm-org-ql.patch"))
                 (file-name (git-file-name name version))))
       (build-system emacs-build-system)
       (propagated-inputs
@@ -11767,6 +11770,8 @@ according to a parsing expression grammar.")
          ("emacs-org-super-agenda" ,emacs-org-super-agenda)
          ("emacs-ts" ,emacs-ts)
          ("emacs-org" ,emacs-org)
+         ("emacs-helm" ,emacs-helm)
+         ("emacs-helm-org" ,emacs-helm-org)
          ("emacs-dash" ,emacs-dash)))
       (native-inputs
        `(("emacs-buttercup" ,emacs-buttercup)))

gnu/packages/patches/emacs-helm-org-ql.patch

@@ -0,0 +1,42 @@
+From 3918944856834ef4a7ed613243a1612424d2daba Mon Sep 17 00:00:00 2001
+From: Brian Leung <leungbk@mailfence.com>
+Date: Thu, 10 Oct 2019 06:54:33 +0200
+Subject: [PATCH] Use require statements.
+
+---
+ helm-org-ql.el | 19 ++-----------------
+ 1 file changed, 2 insertions(+), 17 deletions(-)
+
+diff --git a/helm-org-ql.el b/helm-org-ql.el
+index 26beab9..113b7f2 100644
+--- a/helm-org-ql.el
++++ b/helm-org-ql.el
+@@ -35,23 +35,8 @@
+ (require 'org-ql)
+ (require 'org-ql-search)
+ 
+-;; (require 'helm)
+-;; (require 'helm-org)
+-
+-;;;; Compatibility
+-
+-;; Declare Helm functions since Helm may not be installed.
+-(declare-function helm "ext:helm")
+-(declare-function helm-run-after-exit "ext:helm")
+-(declare-function helm-window "ext:helm-lib")
+-(declare-function helm-buffer-get "ext:helm-lib")
+-(declare-function helm-make-source "ext:helm-source")
+-(declare-function helm-org-goto-marker "ext:helm-org")
+-
+-;; Silence byte-compiler about variables.
+-(defvar helm-map)
+-(defvar helm-pattern)
+-(defvar helm-input-idle-delay)
++(require 'helm)
++(require 'helm-org)
+ 
+ ;;;; Variables
+ 
+-- 
+2.23.0
+