Removing the qm translation files as by default they are rebuild by CMake anyhow. Changing the output directory which pointed to the source directory. That avoids

polluting the source directory during out-of-source builds and it is standard that these files should be located inside the build directory during the build step.

.gitignore

@@ -6,4 +6,5 @@
 doc/*
 !doc/QElectroTech.qch
 QElectroTech.tag
-!doc/doc-utils
+!doc/doc-utils
+lang/*.qm

CMakeLists.txt

@@ -189,7 +189,7 @@ endif()
 # fail with "Premature end of document".
 set_source_files_properties(
     ${TS_FILES}
-    PROPERTIES OUTPUT_LOCATION "${QET_DIR}/lang"
+    PROPERTIES OUTPUT_LOCATION "lang"
 )
 if(QT_VERSION_MAJOR EQUAL 6)
     if(Qt6_VERSION VERSION_LESS "6.2")