Remove extraneous Mac browser app aliases from failed builds

images/icons/mac/browser/CMakeLists.txt

@@ -3,8 +3,9 @@ FILE (GLOB ICONS *.icns)
 INSTALL (FILES ${ICONS}
          DESTINATION "${CMAKE_INSTALL_PREFIX}/${QGIS_BIN_DIR}/QGIS Browser.app/Contents/Resources")
 # create alias now, so alias file gets correct icon, delete first if it exists
-SET (BROWSER_ALIAS "$ENV{DESTDIR}${QGIS_INSTALL_PREFIX}/QGIS Browser.app")
-IF (EXISTS ${BROWSER_ALIAS})
-    FILE (REMOVE ${BROWSER_ALIAS})
-ENDIF ()
+# could be more than one alias if previous build failed
+FILE (GLOB ALIASES "$ENV{DESTDIR}${QGIS_INSTALL_PREFIX}/QGIS Browser.app*")
+FOREACH(browserAlias ${ALIASES})
+    FILE (REMOVE "${browserAlias}")
+ENDFOREACH(browserAlias)
 INSTALL (CODE "EXECUTE_PROCESS(COMMAND osascript -e \"tell application \\\"Finder\\\" to make alias file to POSIX file \\\"$ENV{DESTDIR}${CMAKE_INSTALL_PREFIX}/${QGIS_BIN_DIR}/QGIS Browser.app\\\" at POSIX file \\\"$ENV{DESTDIR}${QGIS_INSTALL_PREFIX}/\\\"\")")