gnu: kommit: Use Qt6.

* gnu/packages/kde.scm (kommit): Use Qt6.
[arguments]<qtbase>: New argument.
<configure-flags>: New argument.
[native-inputs]: Replace kdoctools-5 with kdoctools.
[inputs]: Replace kconfigwidgets-5 with kconfigwidgets, kcoreaddons-5 with
kcoreaddons, kcrash-5 with kcrash, kdbusaddons-5 with kdbusaddons, ki18n-5 with
ki18n, kxmlgui-5 with kxmlgui, kio-5 with kio, ktextwidgets-5 with
ktextwidgets, ktexteditor-5 with ktexteditor, ksyntaxhighlighting-5 with
ksyntaxhighlighting. Add dolphin.

Change-Id: I04ad9f42a74b3a21625f85ae8e47df4f5553b6f2

gnu/packages/kde.scm

@@ -83,6 +83,8 @@ (define-module (gnu packages kde)
   #:use-module (gnu packages kde-frameworks)
   #:use-module (gnu packages kde-pim)
   #:use-module (gnu packages kde-plasma)
+  ;; Including this module breaks the build.
+  ;#:use-module ((gnu packages kde-systemtools) #:select (dolphin))
   #:use-module (gnu packages libusb)
   #:use-module (gnu packages linux)
   #:use-module (gnu packages llvm)
@@ -1065,7 +1067,10 @@ (define-public kommit
                 "09ahnizl5mqdrg583lxkwwnsq8ci95fk49wx9733ah4c39gync5c"))))
     (build-system qt-build-system)
     (arguments
-     (list #:phases
+     (list #:qtbase qtbase
+           #:configure-flags
+           #~(list "-DQT_MAJOR_VERSION=6")
+           #:phases
            #~(modify-phases %standard-phases
                (replace 'check
                  (lambda* (#:key tests? #:allow-other-keys)
@@ -1076,18 +1081,23 @@ (define-public kommit
 branchestest|configtest|stashtest|filetest|overlaytest|remotetest|clonetest|\
 submoduletest)")))))))
     (native-inputs
-     (list extra-cmake-modules kdoctools-5 pkg-config))
+     (list extra-cmake-modules kdoctools pkg-config))
     (inputs
-     (list kconfigwidgets-5
-           kcoreaddons-5
-           kcrash-5
-           kdbusaddons-5
-           ki18n-5
-           kxmlgui-5
-           kio-5
-           ktextwidgets-5
-           ktexteditor-5
-           ksyntaxhighlighting-5
+     (list ;; module cyclic referencing
+            (module-ref
+             (resolve-interface
+              '(gnu packages kde-systemtools))
+             'dolphin)         ;for dolphin plugin
+           kconfigwidgets
+           kcoreaddons
+           kcrash
+           kdbusaddons
+           ki18n
+           kxmlgui
+           kio
+           ktextwidgets
+           ktexteditor
+           ksyntaxhighlighting
            libgit2-1.8))
     (home-page "https://apps.kde.org/kommit/")
     (synopsis "Git client for KDE")