diff --git a/mkspecs/common/linux.conf b/mkspecs/common/linux.conf
index 13916a5646f..68e566aeaba 100644
--- a/mkspecs/common/linux.conf
+++ b/mkspecs/common/linux.conf
@@ -29,7 +29,6 @@ QMAKE_LIBDIR_OPENVG     =
 QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11 -lm
-QMAKE_LIBS_NIS          = -lnsl
 QMAKE_LIBS_EGL          = -lEGL
 QMAKE_LIBS_OPENGL       = -lGL
 QMAKE_LIBS_OPENGL_ES2   = -lGLESv2
diff --git a/mkspecs/common/solaris.conf b/mkspecs/common/solaris.conf
index 23e26debffa..024b75a9d91 100644
--- a/mkspecs/common/solaris.conf
+++ b/mkspecs/common/solaris.conf
@@ -19,7 +19,6 @@ QMAKE_INCDIR_OPENGL     = /usr/X11/include/mesa
 QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11 -lresolv -lsocket -lnsl
-QMAKE_LIBS_NIS          =
 QMAKE_LIBS_OPENGL       = -lGL
 QMAKE_LIBS_THREAD       = -lpthread -lrt
 QMAKE_LIBS_NETWORK      = -lresolv -lsocket -lxnet -lnsl
diff --git a/mkspecs/hurd-g++/qmake.conf b/mkspecs/hurd-g++/qmake.conf
index fc6ef779fc6..f701755fb3f 100644
--- a/mkspecs/hurd-g++/qmake.conf
+++ b/mkspecs/hurd-g++/qmake.conf
@@ -29,7 +29,6 @@ QMAKE_LIBDIR_OPENVG     =
 QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11 -lm
-QMAKE_LIBS_NIS          = -lnsl
 QMAKE_LIBS_EGL          = -lEGL
 QMAKE_LIBS_OPENGL       = -lGL
 QMAKE_LIBS_OPENGL_ES2   = -lGLESv2
diff --git a/mkspecs/linux-icc/qmake.conf b/mkspecs/linux-icc/qmake.conf
index 4fc2251665f..cee91317f83 100644
--- a/mkspecs/linux-icc/qmake.conf
+++ b/mkspecs/linux-icc/qmake.conf
@@ -100,7 +100,6 @@ QMAKE_LFLAGS_LTCG       = $$QMAKE_CFLAGS_LTCG
 QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11 -lm
-QMAKE_LIBS_NIS          = -lnsl
 QMAKE_LIBS_OPENGL       = -lGL
 QMAKE_LIBS_THREAD       = -lpthread
 
diff --git a/mkspecs/lynxos-g++/qmake.conf b/mkspecs/lynxos-g++/qmake.conf
index 91bcc6b85d3..1a44d932755 100644
--- a/mkspecs/lynxos-g++/qmake.conf
+++ b/mkspecs/lynxos-g++/qmake.conf
@@ -64,7 +64,6 @@ QMAKE_LFLAGS_RPATH      = -Wl,-rpath,
 QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11 -lm
-QMAKE_LIBS_NIS          = -lnsl
 QMAKE_LIBS_OPENGL       = -lGL
 QMAKE_LIBS_THREAD       = -lpthread
 
diff --git a/mkspecs/solaris-cc-64/qmake.conf b/mkspecs/solaris-cc-64/qmake.conf
index 1c7b43c29ce..e2317de3b82 100644
--- a/mkspecs/solaris-cc-64/qmake.conf
+++ b/mkspecs/solaris-cc-64/qmake.conf
@@ -80,7 +80,6 @@ QMAKE_LFLAGS_RPATH      = -R
 QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11 -lresolv -lsocket -lnsl
-QMAKE_LIBS_NIS          =
 QMAKE_LIBS_OPENGL       = -lGL
 QMAKE_LIBS_THREAD       = -lpthread -lrt
 QMAKE_LIBS_NETWORK      = -lresolv -lsocket -lxnet -lnsl
diff --git a/mkspecs/solaris-cc/qmake.conf b/mkspecs/solaris-cc/qmake.conf
index 045ab033dd1..1a711e753aa 100644
--- a/mkspecs/solaris-cc/qmake.conf
+++ b/mkspecs/solaris-cc/qmake.conf
@@ -63,7 +63,6 @@ QMAKE_LFLAGS_RPATH      = -R
 QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11 -lresolv -lsocket -lnsl
-QMAKE_LIBS_NIS          =
 QMAKE_LIBS_OPENGL       = -lGL
 QMAKE_LIBS_THREAD       = -lpthread -lrt
 QMAKE_LIBS_NETWORK      = -lresolv -lsocket -lxnet -lnsl
diff --git a/mkspecs/unsupported/linux-host-g++/qmake.conf b/mkspecs/unsupported/linux-host-g++/qmake.conf
index 3aa75207761..7853ade8ceb 100644
--- a/mkspecs/unsupported/linux-host-g++/qmake.conf
+++ b/mkspecs/unsupported/linux-host-g++/qmake.conf
@@ -98,7 +98,6 @@ QMAKE_LIBDIR_OPENVG     =
 QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11 -lm
-QMAKE_LIBS_NIS          = -lnsl
 QMAKE_LIBS_EGL          = -lEGL
 QMAKE_LIBS_OPENGL       = -lGL
 QMAKE_LIBS_OPENGL_ES2   = -lGLESv2
diff --git a/mkspecs/unsupported/vxworks-ppc-dcc/qmake.conf b/mkspecs/unsupported/vxworks-ppc-dcc/qmake.conf
index 16e3127803e..2fa514854c8 100644
--- a/mkspecs/unsupported/vxworks-ppc-dcc/qmake.conf
+++ b/mkspecs/unsupported/vxworks-ppc-dcc/qmake.conf
@@ -76,7 +76,6 @@ QMAKE_LIBDIR_OPENGL     = $$QMAKE_LIBDIR_X11
 QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      =
 QMAKE_LIBS_X11          = -lXext -lX11
-QMAKE_LIBS_NIS          = -lnsl
 QMAKE_LIBS_OPENGL       = -lGL
 QMAKE_LIBS_THREAD       =
 QMAKE_LIBS_NETWORK      = # -lnetwrap # only needed if kernel is missing gethostbyname and friends
diff --git a/mkspecs/unsupported/vxworks-simpentium-dcc/qmake.conf b/mkspecs/unsupported/vxworks-simpentium-dcc/qmake.conf
index 44e39a8a8c4..5aa96dff785 100644
--- a/mkspecs/unsupported/vxworks-simpentium-dcc/qmake.conf
+++ b/mkspecs/unsupported/vxworks-simpentium-dcc/qmake.conf
@@ -76,7 +76,6 @@ QMAKE_LIBDIR_OPENGL     = $$QMAKE_LIBDIR_X11
 QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      =
 QMAKE_LIBS_X11          = -lXext -lX11
-QMAKE_LIBS_NIS          = -lnsl
 QMAKE_LIBS_OPENGL       = -lGL
 QMAKE_LIBS_THREAD       =
 QMAKE_LIBS_NETWORK      = # -lnet # only needed if kernel is missing gethostbyname and friends