diff --git a/mkspecs/win32-g++/qmake.conf b/mkspecs/win32-g++/qmake.conf
index cf43797b95..39ecf00544 100644
--- a/mkspecs/win32-g++/qmake.conf
+++ b/mkspecs/win32-g++/qmake.conf
@@ -30,7 +30,6 @@ QMAKE_CFLAGS_WARN_ON   += -Wextra
 QMAKE_CFLAGS_SSE2      += -mstackrealign
 
 QMAKE_CXX               = $${CROSS_COMPILE}g++
-QMAKE_CXXFLAGS_THREAD   = $$QMAKE_CFLAGS_THREAD
 QMAKE_CXXFLAGS_RTTI_ON  = -frtti
 QMAKE_CXXFLAGS_RTTI_OFF = -fno-rtti
 QMAKE_CXXFLAGS_EXCEPTIONS_ON = -fexceptions -mthreads
diff --git a/mkspecs/win32-icc/qmake.conf b/mkspecs/win32-icc/qmake.conf
index a25c979d9a..9506097e7f 100644
--- a/mkspecs/win32-icc/qmake.conf
+++ b/mkspecs/win32-icc/qmake.conf
@@ -48,16 +48,10 @@ QMAKE_CXXFLAGS_LTCG     = $$QMAKE_CFLAGS_LTCG
 QMAKE_CXXFLAGS_DISABLE_LTCG = $$QMAKE_CFLAGS_DISABLE_LTCG
 
 QMAKE_LINK              = xilink
-QMAKE_LFLAGS            = /NOLOGO
-QMAKE_LFLAGS_RELEASE    =
-QMAKE_LFLAGS_RELEASE_WITH_DEBUGINFO =
-QMAKE_LFLAGS_DEBUG      = /DEBUG
 QMAKE_LFLAGS_LTCG       = $$QMAKE_CFLAGS_LTCG
 
 QMAKE_LIB               = xilib /NOLOGO
 
-DSP_EXTENSION           = .dsp
-
 include(../common/angle.conf)
 
 load(qt_config)