Re: QT install and search paths

[iyzsong@member.fsf.org (宋文武)]

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Here is a patch to adjust the directory layout of qtbase:


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From b264ccfdec5c7334ef7e428c8b483bc673edc393 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=AE=8B=E6=96=87=E6=AD=A6?= <iyzsong@member.fsf.org>
Date: Fri, 25 Aug 2017 22:52:41 +0800
Subject: [PATCH] gnu: qtbase: Use a more standard directory layout.

* gnu/packages/qt.scm (qtbase)[arguments]: Pass docdir, headerdir,
archdatadir, datadir and examplesdir to 'configure'.  Ajdust the
patch-qt_config.prf phase accordingly.
[native-search-paths]: Adjust accordingly.
---
 gnu/packages/qt.scm | 31 +++++++++++++++----------------
 1 file changed, 15 insertions(+), 16 deletions(-)

diff --git a/gnu/packages/qt.scm b/gnu/packages/qt.scm
index 3e3588a50..2d7c83ae5 100644
--- a/gnu/packages/qt.scm
+++ b/gnu/packages/qt.scm
@@ -459,6 +459,12 @@ developers using C++ or QML, a CSS & JavaScript like language.")
                        "./configure"
                        "-verbose"
                        "-prefix" out
+                       "-docdir" (string-append out "/share/doc/qt5")
+                       "-headerdir" (string-append out "/include/qt5")
+                       "-archdatadir" (string-append out "/lib/qt5")
+                       "-datadir" (string-append out "/share/qt5")
+                       "-examplesdir" (string-append
+                                       out "/share/doc/qt5/examples")
                        "-opensource"
                        "-confirm-license"
                        ;; Do not build examples; if desired, these could go
@@ -488,38 +494,31 @@ developers using C++ or QML, a CSS & JavaScript like language.")
          (add-after 'install 'patch-qt_config.prf
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
+                    (mkspecs (string-append out "/lib/qt5/mkspecs"))
                     (qt_config.prf (string-append
-                                    out "/mkspecs/features/qt_config.prf")))
+                                    mkspecs "/features/qt_config.prf")))
                ;; For each Qt module, let `qmake' uses search paths in the
                ;; module directory instead of all in QT_INSTALL_PREFIX.
                (substitute* qt_config.prf
                  (("\\$\\$\\[QT_INSTALL_HEADERS\\]")
-                  "$$replace(dir, mkspecs/modules, include)")
+                  "$$clean_path($$replace(dir, mkspecs/modules, ../../include/qt5))")
                  (("\\$\\$\\[QT_INSTALL_LIBS\\]")
-                  "$$replace(dir, mkspecs/modules, lib)")
+                  "$$clean_path($$replace(dir, mkspecs/modules, ../../lib))")
                  (("\\$\\$\\[QT_HOST_LIBS\\]")
-                  "$$replace(dir, mkspecs/modules, lib)")
-                 (("\\$\\$\\[QT_INSTALL_PLUGINS\\]")
-                  "$$replace(dir, mkspecs/modules, plugins)")
-                 (("\\$\\$\\[QT_INSTALL_LIBEXECS\\]")
-                  "$$replace(dir, mkspecs/modules, libexec)")
+                  "$$clean_path($$replace(dir, mkspecs/modules, ../../lib))")
                  (("\\$\\$\\[QT_INSTALL_BINS\\]")
-                  "$$replace(dir, mkspecs/modules, bin)")
-                 (("\\$\\$\\[QT_INSTALL_IMPORTS\\]")
-                  "$$replace(dir, mkspecs/modules, imports)")
-                 (("\\$\\$\\[QT_INSTALL_QML\\]")
-                  "$$replace(dir, mkspecs/modules, qml)"))
+                  "$$clean_path($$replace(dir, mkspecs/modules, ../../bin))"))
                #t))))))
     (native-search-paths
      (list (search-path-specification
             (variable "QMAKEPATH")
-            (files '("")))
+            (files '("lib/qt5")))
            (search-path-specification
             (variable "QML2_IMPORT_PATH")
-            (files '("qml")))
+            (files '("lib/qt5/qml")))
            (search-path-specification
             (variable "QT_PLUGIN_PATH")
-            (files '("plugins")))
+            (files '("lib/qt5/plugins")))
            (search-path-specification
             (variable "XDG_DATA_DIRS")
             (files '("share")))
-- 
2.13.3


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I have built qtscript with it, which looks fine so far.