From 6ac2ac55116af9d2d37186468eb9df981b159f92 Mon Sep 17 00:00:00 2001
From: Přemysl Eric Janouch <p@janouch.name>
Date: Wed, 18 Dec 2024 15:37:27 +0100
Subject: xT: improve MSYS2 build

The static Qt 6 package is unusable.
---
 xT/CMakeLists.txt | 26 ++++++++++++++++++++++++--
 xT/xT.cpp         |  1 +
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/xT/CMakeLists.txt b/xT/CMakeLists.txt
index 56ab835..8f27be3 100644
--- a/xT/CMakeLists.txt
+++ b/xT/CMakeLists.txt
@@ -109,8 +109,10 @@ include (GNUInstallDirs)
 if (ANDROID)
 	install (TARGETS xT DESTINATION .)
 elseif (APPLE OR WIN32)
-	# TODO(p): Consider whether or not to use MSYS2.
-	install (TARGETS xT DESTINATION .)
+	install (TARGETS xT
+		BUNDLE DESTINATION .
+		RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+
 	# XXX: QTBUG-127075, which can be circumvented by manually running
 	# macdeployqt on xT.app before the install.
 	qt_generate_deploy_app_script (TARGET xT OUTPUT_SCRIPT deploy_xT)
@@ -127,6 +129,26 @@ else ()
 		DESTINATION ${CMAKE_INSTALL_DATADIR}/applications)
 endif ()
 
+# Within MSYS2, windeployqt doesn't copy the compiler runtime,
+# which is always linked dynamically by the Qt binaries.
+# TODO(p): Consider whether or not to use MSYS2 to cross-compile, and how.
+if (WIN32)
+	install (CODE [=[
+	set (bindir "${CMAKE_INSTALL_PREFIX}/bin")
+	execute_process (COMMAND cygpath -m /
+		OUTPUT_VARIABLE cygroot OUTPUT_STRIP_TRAILING_WHITESPACE)
+	if (cygroot)
+		execute_process (COMMAND ldd "${bindir}/xT.exe"
+			OUTPUT_VARIABLE ldd_output OUTPUT_STRIP_TRAILING_WHITESPACE)
+		string (REGEX MATCHALL " /mingw64/bin/[^ ]+ " libs "${ldd_output}")
+		foreach (lib ${libs})
+			string (STRIP "${lib}" lib)
+			file (COPY "${cygroot}${lib}" DESTINATION "${bindir}")
+		endforeach()
+	endif ()
+	]=])
+endif ()
+
 # CPack
 set (CPACK_PACKAGE_VENDOR "Premysl Eric Janouch")
 set (CPACK_PACKAGE_CONTACT "Přemysl Eric Janouch <p@janouch.name>")
diff --git a/xT/xT.cpp b/xT/xT.cpp
index 0f6de57..f84c87c 100644
--- a/xT/xT.cpp
+++ b/xT/xT.cpp
@@ -1421,6 +1421,7 @@ static void
 build_main_window()
 {
 	g.wMain = new QMainWindow;
+	refresh_icon();
 
 	auto central = new QWidget(g.wMain);
 	auto vbox = new QVBoxLayout(central);
-- 
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