[LyX/master] Address Qt6 deprecation warning (QLibraryInfo::location())

[Juergen Spitzmueller]

commit b7f983bc47dd49683dc12339edd0ee6bfca31e71
Author: Juergen Spitzmueller <spitz at lyx.org>
Date:   Sun Mar 21 12:30:34 2021 +0100

    Address Qt6 deprecation warning (QLibraryInfo::location())
---
 src/frontends/qt/GuiApplication.cpp |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/src/frontends/qt/GuiApplication.cpp b/src/frontends/qt/GuiApplication.cpp
index a5cb3c8..e6964ed 100644
--- a/src/frontends/qt/GuiApplication.cpp
+++ b/src/frontends/qt/GuiApplication.cpp
@@ -2713,7 +2713,11 @@ void GuiApplication::setGuiLanguage()
 	// opposite. Therefore, long name should be used without truncation.
 	// c.f. http://doc.trolltech.com/4.1/qtranslator.html#load
 	if (!d->qt_trans_.load(language_name,
+#if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
+			QLibraryInfo::path(QLibraryInfo::TranslationsPath))) {
+#else
 			QLibraryInfo::location(QLibraryInfo::TranslationsPath))) {
+#endif
 		LYXERR(Debug::LOCALE, "Could not find Qt translations for locale "
 			<< language_name);
 	} else {