Merge bitcoin/bitcoin#20641: depends: Use Qt top-level build facilities

1155978d8f3fcc1cebf357302b933b834f9c9465 build, qt: Do not install *.prl files (Hennadii Stepanov)
763793b60e4ec0d1df129279ca3f08fc97d6d90e build, qt: Fix wrong cross-compiling detection on macOS (Hennadii Stepanov)
30982721ab3129928fa0e3c06717350876de4f2d build, qt: Force bootstrap while building linguist tools (Hennadii Stepanov)
689320e3074e2be3c47123a0b344d2f265ad9f4f build, qt: Drop translations.pro hack (Hennadii Stepanov)
6a1f98f2536504c9bc24d8930c69838d8262062c build, qt: Drop lrelease dependency patch (Hennadii Stepanov)
39e561e087246dd7e442c5bfbfee304fbc22d7e5 build, qt: Add linguist_tools list (Hennadii Stepanov)
27d3def1c6d7a0bf447c62f0724136d6885c8d92 build: Use Qt top-level build facilities (Hennadii Stepanov)

Pull request description:

  This PR:
  - uses Qt top-level build facilities without the need to download all-in-one archive
  - is based on **BlockMechanic**'s [idea](https://github.com/bitcoin/bitcoin/pull/20600), and is an alternative to #20600
  - makes it easy to integrate [new modules](https://github.com/bitcoin/bitcoin/pull/16883) into static builds
  - has the minimal diff
  - makes the qt package build process streamlined by dropping some patches and hacks (an alternative to  #21420 and #20642)

  Fixes #18536 (a non-intrusive alternative to #21589 and #19785).

  Fixes #14648.

  Fixes #21588 (a non-intrusive alternative to #21591).

  Required for adding [Wayland support](https://github.com/bitcoin/bitcoin/issues/19950) on Linux.

  ---

  **Note for reviewers**: With 9046de8a4cbc3899fed9eae084115f423e7ac5bd from #21995 it is easy to verify that there are no changes in the resulted `qt` package archive on the per commit basis. For example, for `HOST=i686-pc-linux-gnu` no commit in this PR introduces any changes.

ACKs for top commit:
  fanquake:
    ACK 1155978d8f3fcc1cebf357302b933b834f9c9465

Tree-SHA512: 667b06b72cb7ff26d68b9b88e8dddb51084783ca9e3d80b3392710794c1dc7fd77bbcc3ccf4ccece9919d33b9bf8fce13c5059502bd228021dc7c93fdb87ca7a

4 files changed, 22 insertions, 21 deletions

diff --git a/depends/patches/qt/drop_lrelease_dependency.patch b/depends/patches/qt/drop_lrelease_dependency.patch
deleted file mode 100644
index 9b918af77c..0000000000
--- a/depends/patches/qt/drop_lrelease_dependency.patch
+++ /dev/null
@@ -1,20 +0,0 @@
-commit 67b3ed7406e1d0762188dbad2c44a06824ba0778
-Author: fanquake <fanquake@gmail.com>
-Date:   Tue Aug 18 15:24:01 2020 +0800
-
-    Drop dependency on lrelease
-
-    Qts buildsystem insists on using the installed lrelease, but gets
-    confused about how to find it. Since we manually control the build
-    order, just drop the dependency.
-
-    See #9469
-
-diff --git a/qttranslations/translations/translations.pro b/qttranslations/translations/translations.pro
-index 694544c..eff339d 100644
---- a/qttranslations/translations/translations.pro
-+++ b/qttranslations/translations/translations.pro
-@@ -107,3 +107,2 @@ updateqm.commands = $$LRELEASE ${QMAKE_FILE_IN} -qm ${QMAKE_FILE_OUT}
- silent:updateqm.commands = @echo lrelease ${QMAKE_FILE_IN} && $$updateqm.commands
--updateqm.depends = $$LRELEASE_EXE
- updateqm.name = LRELEASE ${QMAKE_FILE_IN}
diff --git a/depends/patches/qt/mac-qmake.conf b/depends/patches/qt/mac-qmake.conf
index 0142667547..190ab7a160 100644
--- a/depends/patches/qt/mac-qmake.conf
+++ b/depends/patches/qt/mac-qmake.conf
@@ -8,7 +8,6 @@ include(../common/clang-mac.conf)
 QMAKE_MAC_SDK_PATH=$${MAC_SDK_PATH}
 QMAKE_XCODE_VERSION = $${XCODE_VERSION}
 QMAKE_XCODE_DEVELOPER_PATH=/Developer
-QMAKE_MACOSX_DEPLOYMENT_TARGET = $${MAC_MIN_VERSION}
 QMAKE_MAC_SDK=macosx
 QMAKE_MAC_SDK.macosx.Path = $${MAC_SDK_PATH}
 QMAKE_MAC_SDK.macosx.platform_name = macosx
diff --git a/depends/patches/qt/qt.pro b/depends/patches/qt/qt.pro
new file mode 100644
index 0000000000..8f2e900a84
--- /dev/null
+++ b/depends/patches/qt/qt.pro
@@ -0,0 +1,16 @@
+# Create the super cache so modules will add themselves to it.
+cache(, super)
+
+!QTDIR_build: cache(CONFIG, add, $$list(QTDIR_build))
+
+prl = no_install_prl
+CONFIG += $$prl
+cache(CONFIG, add stash, prl)
+
+TEMPLATE = subdirs
+SUBDIRS = qtbase qttools qttranslations
+
+qttools.depends = qtbase
+qttranslations.depends = qttools
+
+load(qt_configure)
diff --git a/depends/patches/qt/qttools_src.pro b/depends/patches/qt/qttools_src.pro
new file mode 100644
index 0000000000..6ef71a0942
--- /dev/null
+++ b/depends/patches/qt/qttools_src.pro
@@ -0,0 +1,6 @@
+TEMPLATE = subdirs
+SUBDIRS = linguist
+
+fb = force_bootstrap
+CONFIG += $$fb
+cache(CONFIG, add, fb)