diff --git a/mkspecs/features/dbuscommon.pri b/mkspecs/features/dbuscommon.pri
index d836b253dc..cadcd46d61 100644
--- a/mkspecs/features/dbuscommon.pri
+++ b/mkspecs/features/dbuscommon.pri
@@ -57,22 +57,22 @@ for(group, groups) {
     }
 
     $${group}_header.commands = $$QMAKE_QDBUSXML2CPP $$hdr_flags $$qdbusxml2cpp_option ${QMAKE_FILE_OUT}: ${QMAKE_FILE_IN}
-    $${group}_header.depends = $$QMAKE_QDBUSXML2CPP_EXE
+    $${group}_header.depends += $$QMAKE_QDBUSXML2CPP_EXE
     $${group}_header.output = ${QMAKE_FUNC_FILE_IN_qdbusOutputBasename}_$${dbus_type}.h
     $${group}_header.name = DBUSXML2CPP $${dbus_TYPE} HEADER ${QMAKE_FILE_IN}
     $${group}_header.variable_out = $${GROUP}_HEADERS
     $${group}_header.input = $$input_list
 
     $${group}_source.commands = $$QMAKE_QDBUSXML2CPP -i ${QMAKE_FILE_OUT_BASE}.h $$src_flags $$qdbusxml2cpp_option :${QMAKE_FILE_OUT} ${QMAKE_FILE_IN}
-    $${group}_source.depends = $$QMAKE_QDBUSXML2CPP_EXE
+    $${group}_source.depends += $$QMAKE_QDBUSXML2CPP_EXE
     $${group}_source.output = ${QMAKE_FUNC_FILE_IN_qdbusOutputBasename}_$${dbus_type}.cpp
     $${group}_source.name = DBUSXML2CPP $${dbus_TYPE} SOURCE ${QMAKE_FILE_IN}
     $${group}_source.variable_out = SOURCES
     $${group}_source.input = $$input_list
-    $${group}_source.depends = $$eval($${group}_header.output)   # this actually belongs to the object file
+    $${group}_source.depends += $$eval($${group}_header.output)   # this actually belongs to the object file
 
     $${group}_moc.commands = $$moc_header.commands
-    $${group}_moc.depends = $$QMAKE_MOC_EXE
+    $${group}_moc.depends += $$QMAKE_MOC_EXE
     $${group}_moc.output = $$moc_header.output
     $${group}_moc.input = $${GROUP}_HEADERS
     $${group}_moc.variable_out = GENERATED_SOURCES
diff --git a/mkspecs/features/qgltf.prf b/mkspecs/features/qgltf.prf
index 4a6d16f520..e3a5c64e32 100644
--- a/mkspecs/features/qgltf.prf
+++ b/mkspecs/features/qgltf.prf
@@ -5,7 +5,7 @@ isEmpty(QGLTF_DIR): QGLTF_DIR = .
 qgltf.input = QT3D_MODELS
 qgltf.output = $$QGLTF_DIR/${QMAKE_FILE_BASE}.qrc
 qgltf.variable_out += RESOURCES
-qgltf.depends = $$QMAKE_QGLTF_EXE
+qgltf.depends += $$QMAKE_QGLTF_EXE
 qgltf.commands = $$QMAKE_QGLTF -d $$QGLTF_DIR $$QGLTF_PARAMS ${QMAKE_FILE_NAME}
 silent: qgltf.commands = @echo qgltf ${QMAKE_FILE_IN} && $$qgltf.commands -s
 qgltf.CONFIG += no_link
diff --git a/mkspecs/features/qlalr.prf b/mkspecs/features/qlalr.prf
index 5f0f3794cb..941bfe0d9f 100644
--- a/mkspecs/features/qlalr.prf
+++ b/mkspecs/features/qlalr.prf
@@ -23,7 +23,7 @@ for (s, QLALRSOURCES) {
     $${base}.input = $$invar
     $${base}.output = $$QLALR_DIR/$${parser}.cpp
     $${base}.variable_out = GENERATED_SOURCES
-    $${base}.depends = $$QMAKE_QLALR_EXE
+    $${base}.depends += $$QMAKE_QLALR_EXE
     $${base}.commands = $$QMAKE_QLALR $$QMAKE_QLALRFLAGS ${QMAKE_FILE_IN}
     silent: $${base}.commands = @echo qlalr ${QMAKE_FILE_IN} && $${base}.commands
     $${base}.name = QLALR ${QMAKE_FILE_IN}
@@ -31,19 +31,19 @@ for (s, QLALRSOURCES) {
     $${base}_h.input = $$invar
     $${base}_h.output = $$QLALR_DIR/$${parser}_p.h
     $${base}_h.CONFIG = no_link
-    $${base}_h.depends = $$QLALR_DIR/$${parser}.cpp
+    $${base}_h.depends += $$QLALR_DIR/$${parser}.cpp
     $${base}_h.commands = $$escape_expand(\\n)   # force creation of rule
 
     $${base}_decl.input = $$invar
     $${base}_decl.output = $$QLALR_DIR/$${decl}
     $${base}_decl.CONFIG = no_link
-    $${base}_decl.depends = $$QLALR_DIR/$${parser}.cpp
+    $${base}_decl.depends += $$QLALR_DIR/$${parser}.cpp
     $${base}_decl.commands = $$escape_expand(\\n)   # force creation of rule
 
     $${base}_impl.input = $$invar
     $${base}_impl.output = $$QLALR_DIR/$${impl}
     $${base}_impl.variable_out = GENERATED_SOURCES
-    $${base}_impl.depends = $$QLALR_DIR/$${parser}.cpp
+    $${base}_impl.depends += $$QLALR_DIR/$${parser}.cpp
     $${base}_impl.commands = $$escape_expand(\\n)   # force creation of rule
 
     QMAKE_EXTRA_COMPILERS += $$base $${base}_h $${base}_decl $${base}_impl
diff --git a/mkspecs/features/resources.prf b/mkspecs/features/resources.prf
index 6d0a3187d8..ec70f49ce1 100644
--- a/mkspecs/features/resources.prf
+++ b/mkspecs/features/resources.prf
@@ -103,7 +103,7 @@ rcc.clean += $$RCC_CPP $$RCC_TMP
 
 }
 
-rcc.depends = $$QMAKE_RCC_EXE
+rcc.depends += $$QMAKE_RCC_EXE
 silent:rcc.commands = @echo rcc ${QMAKE_FILE_IN} && $$rcc.commands
 else:rcc.commands ~= s/&&/$$escape_expand(\\n\\t)/g
 QMAKE_EXTRA_COMPILERS += rcc
diff --git a/mkspecs/features/uic.prf b/mkspecs/features/uic.prf
index e6d8b9cc83..ca8283920a 100644
--- a/mkspecs/features/uic.prf
+++ b/mkspecs/features/uic.prf
@@ -3,7 +3,7 @@ qtPrepareTool(QMAKE_UIC, uic, _DEP)
 isEmpty(UI_DIR):UI_DIR = .
 isEmpty(QMAKE_MOD_UIC):QMAKE_MOD_UIC = ui_
 
-uic.depends = $$QMAKE_UIC_EXE
+uic.depends += $$QMAKE_UIC_EXE
 uic.commands = $$QMAKE_UIC ${QMAKE_FILE_IN} -o ${QMAKE_FILE_OUT}
 uic.depend_command = $$QMAKE_UIC_DEP -d ${QMAKE_FILE_IN}
 uic.output = $$UI_DIR/$${QMAKE_MOD_UIC}${QMAKE_FILE_BASE}$${first(QMAKE_EXT_H)}
diff --git a/mkspecs/features/wayland-scanner.prf b/mkspecs/features/wayland-scanner.prf
index ce833f1c08..7319392d85 100644
--- a/mkspecs/features/wayland-scanner.prf
+++ b/mkspecs/features/wayland-scanner.prf
@@ -78,7 +78,7 @@ qtPrepareTool(QMAKE_QTWAYLANDSCANNER, qtwaylandscanner)
 qtwayland_client_header.name = qtwayland ${QMAKE_FILE_BASE}
 qtwayland_client_header.input = WAYLANDCLIENTSOURCES
 qtwayland_client_header.variable_out = HEADERS
-qtwayland_client_header.depends = $$QMAKE_QTWAYLANDSCANNER_EXE $${WAYLAND_CLIENT_HEADER_DEST}wayland-${QMAKE_FILE_BASE}-client-protocol$${first(QMAKE_EXT_H)}
+qtwayland_client_header.depends += $$QMAKE_QTWAYLANDSCANNER_EXE $${WAYLAND_CLIENT_HEADER_DEST}wayland-${QMAKE_FILE_BASE}-client-protocol$${first(QMAKE_EXT_H)}
 qtwayland_client_header.output = $${WAYLAND_CLIENT_HEADER_DEST}qwayland-${QMAKE_FILE_BASE}$${first(QMAKE_EXT_H)}
 qtwayland_client_header.commands = $$QMAKE_QTWAYLANDSCANNER client-header ${QMAKE_FILE_IN} $$WAYLAND_CLIENT_INCLUDE_DIR > ${QMAKE_FILE_OUT}
 silent:qtwayland_client_header.commands = @echo QtWayland client header ${QMAKE_FILE_IN} && $$qtwayland_client_header.commands
@@ -87,7 +87,7 @@ QMAKE_EXTRA_COMPILERS += qtwayland_client_header
 qtwayland_client_code.name = qtwayland ${QMAKE_FILE_BASE}
 qtwayland_client_code.input = WAYLANDCLIENTSOURCES
 qtwayland_client_code.variable_out = SOURCES
-qtwayland_client_code.depends = $$QMAKE_QTWAYLANDSCANNER_EXE $${WAYLAND_CLIENT_HEADER_DEST}qwayland-${QMAKE_FILE_BASE}$${first(QMAKE_EXT_H)}
+qtwayland_client_code.depends += $$QMAKE_QTWAYLANDSCANNER_EXE $${WAYLAND_CLIENT_HEADER_DEST}qwayland-${QMAKE_FILE_BASE}$${first(QMAKE_EXT_H)}
 qtwayland_client_code.output = qwayland-${QMAKE_FILE_BASE}.cpp
 qtwayland_client_code.commands = $$QMAKE_QTWAYLANDSCANNER client-code ${QMAKE_FILE_IN} $$WAYLAND_CLIENT_INCLUDE_DIR > ${QMAKE_FILE_OUT}
 silent:qtwayland_client_code.commands = @echo QtWayland client code ${QMAKE_FILE_IN} && $$qtwayland_client_code.commands
@@ -96,7 +96,7 @@ QMAKE_EXTRA_COMPILERS += qtwayland_client_code
 qtwayland_server_header.name = qtwayland ${QMAKE_FILE_BASE}
 qtwayland_server_header.input = WAYLANDSERVERSOURCES
 qtwayland_server_header.variable_out = HEADERS
-qtwayland_server_header.depends = $$QMAKE_QTWAYLANDSCANNER_EXE $${WAYLAND_SERVER_HEADER_DEST}wayland-${QMAKE_FILE_BASE}-server-protocol$${first(QMAKE_EXT_H)}
+qtwayland_server_header.depends += $$QMAKE_QTWAYLANDSCANNER_EXE $${WAYLAND_SERVER_HEADER_DEST}wayland-${QMAKE_FILE_BASE}-server-protocol$${first(QMAKE_EXT_H)}
 qtwayland_server_header.output = $${WAYLAND_SERVER_HEADER_DEST}qwayland-server-${QMAKE_FILE_BASE}$${first(QMAKE_EXT_H)}
 qtwayland_server_header.commands = $$QMAKE_QTWAYLANDSCANNER server-header ${QMAKE_FILE_IN} $$WAYLAND_SERVER_INCLUDE_DIR > ${QMAKE_FILE_OUT}
 silent:qtwayland_server_header.commands = @echo QtWayland server header ${QMAKE_FILE_IN} && $$qtwayland_server_header.commands
@@ -105,7 +105,7 @@ QMAKE_EXTRA_COMPILERS += qtwayland_server_header
 qtwayland_server_code.name = qtwayland ${QMAKE_FILE_BASE}
 qtwayland_server_code.input = WAYLANDSERVERSOURCES
 qtwayland_server_code.variable_out = SOURCES
-qtwayland_server_code.depends = $$QMAKE_QTWAYLANDSCANNER_EXE $${WAYLAND_SERVER_HEADER_DEST}qwayland-server-${QMAKE_FILE_BASE}$${first(QMAKE_EXT_H)}
+qtwayland_server_code.depends += $$QMAKE_QTWAYLANDSCANNER_EXE $${WAYLAND_SERVER_HEADER_DEST}qwayland-server-${QMAKE_FILE_BASE}$${first(QMAKE_EXT_H)}
 qtwayland_server_code.output = qwayland-server-${QMAKE_FILE_BASE}.cpp
 qtwayland_server_code.commands = $$QMAKE_QTWAYLANDSCANNER server-code ${QMAKE_FILE_IN} $$WAYLAND_SERVER_INCLUDE_DIR > ${QMAKE_FILE_OUT}
 silent:qtwayland_server_code.commands = @echo QtWayland server code ${QMAKE_FILE_IN} && $$qtwayland_server_code.commands
diff --git a/mkspecs/features/win32/dumpcpp.prf b/mkspecs/features/win32/dumpcpp.prf
index eb2e84d753..c8cb0dd24b 100644
--- a/mkspecs/features/win32/dumpcpp.prf
+++ b/mkspecs/features/win32/dumpcpp.prf
@@ -1,6 +1,6 @@
 qtPrepareTool(QMAKE_DUMPCPP, dumpcpp)
 
-dumpcpp_decl.depends = $$QMAKE_DUMPCPP_EXE
+dumpcpp_decl.depends += $$QMAKE_DUMPCPP_EXE
 dumpcpp_decl.commands = $$QMAKE_DUMPCPP ${QMAKE_FILE_IN} -o ${QMAKE_FILE_BASE}
 qaxcontainer_compat: dumpcpp_decl.commands += -compat
 dumpcpp_decl.output = ${QMAKE_FILE_BASE}.h
@@ -17,7 +17,7 @@ dumpcpp_impl.output = ${QMAKE_FILE_BASE}.cpp
 dumpcpp_impl.input = TYPELIBS
 dumpcpp_impl.variable_out = SOURCES
 dumpcpp_impl.name = CPP
-dumpcpp_impl.depends = ${QMAKE_FILE_BASE}.h
+dumpcpp_impl.depends += ${QMAKE_FILE_BASE}.h
 
 QMAKE_EXTRA_COMPILERS += dumpcpp_impl
 
@@ -31,6 +31,6 @@ if(isEmpty(BUILDS)|build_pass):have_target:!contains(TEMPLATE, vc.*) {
     }
 
     objtgt.target = $(OBJECTS)
-    objtgt.depends = $$TYPELIB_HEADERS
+    objtgt.depends += $$TYPELIB_HEADERS
     QMAKE_EXTRA_TARGETS += objtgt
 }
diff --git a/mkspecs/features/yacc.prf b/mkspecs/features/yacc.prf
index e78dd8cbb3..915fbf6850 100644
--- a/mkspecs/features/yacc.prf
+++ b/mkspecs/features/yacc.prf
@@ -36,7 +36,7 @@
     yacc_impl.input = YACCSOURCES
     yacc_impl.variable_out = GENERATED_SOURCES
     yacc_impl.commands = $$escape_expand(\\n)        # We don't want any commands where, but if command is empty no rules are created
-    yacc_impl.depends = $${QMAKE_CPP_MOD_MOC}${QMAKE_FILE_BASE}$${QMAKE_MOD_YACC}$${first(QMAKE_EXT_H)}    # Make sure we depend on the step above
+    yacc_impl.depends += $${QMAKE_CPP_MOD_MOC}${QMAKE_FILE_BASE}$${QMAKE_MOD_YACC}$${first(QMAKE_EXT_H)}    # Make sure we depend on the step above
     yacc_impl.output = $${QMAKE_CPP_MOD_MOC}${QMAKE_FILE_BASE}$${QMAKE_MOD_YACC}$${first(QMAKE_EXT_CPP)}   # Faked output from this step, output really created in step above
     QMAKE_EXTRA_COMPILERS += yacc_impl
 }