diff --git a/mkspecs/aix-g++-64/qmake.conf b/mkspecs/aix-g++-64/qmake.conf
index 7f620a95..21267325 100644
--- a/mkspecs/aix-g++-64/qmake.conf
+++ b/mkspecs/aix-g++-64/qmake.conf
@@ -62,7 +62,7 @@ QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11 -lm
 QMAKE_LIBS_OPENGL       = -lGL
-QMAKE_LIBS_THREAD       = -lpthreads
+QMAKE_LIBS_THREAD       = -pthreads
 
 QMAKE_AR                = ar -X64 cq
 QMAKE_OBJCOPY           = objcopy
diff --git a/mkspecs/aix-g++/qmake.conf b/mkspecs/aix-g++/qmake.conf
index d2f26a1b..2183bf37 100644
--- a/mkspecs/aix-g++/qmake.conf
+++ b/mkspecs/aix-g++/qmake.conf
@@ -62,7 +62,7 @@ QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11 -lm
 QMAKE_LIBS_OPENGL       = -lGL
-QMAKE_LIBS_THREAD       = -lpthreads
+QMAKE_LIBS_THREAD       = -pthreads
 
 QMAKE_AR                = ar cqs
 QMAKE_OBJCOPY           = objcopy
diff --git a/mkspecs/common/linux.conf b/mkspecs/common/linux.conf
index 544cc227..add969be 100644
--- a/mkspecs/common/linux.conf
+++ b/mkspecs/common/linux.conf
@@ -33,7 +33,7 @@ QMAKE_LIBS_EGL          = -lEGL
 QMAKE_LIBS_OPENGL       = -lGL
 QMAKE_LIBS_OPENGL_ES2   = -lGLESv2
 QMAKE_LIBS_OPENVG       = -lOpenVG
-QMAKE_LIBS_THREAD       = -lpthread
+QMAKE_LIBS_THREAD       = -pthread
 QMAKE_LIBS_VULKAN       =
 
 QMAKE_INCDIR_WAYLAND    =
diff --git a/mkspecs/common/solaris.conf b/mkspecs/common/solaris.conf
index d2176628..1c9ae6ef 100644
--- a/mkspecs/common/solaris.conf
+++ b/mkspecs/common/solaris.conf
@@ -21,7 +21,7 @@ QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11 -lresolv -lsocket -lnsl
 QMAKE_LIBS_OPENGL       = -lGL
-QMAKE_LIBS_THREAD       = -lpthread -lrt
+QMAKE_LIBS_THREAD       = -pthread -lrt
 QMAKE_LIBS_NETWORK      = -lresolv -lsocket -lxnet -lnsl
 
 QMAKE_AR                = ar cq
diff --git a/mkspecs/cygwin-g++/qmake.conf b/mkspecs/cygwin-g++/qmake.conf
index a4f64d9c..d594774f 100644
--- a/mkspecs/cygwin-g++/qmake.conf
+++ b/mkspecs/cygwin-g++/qmake.conf
@@ -61,7 +61,7 @@ QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11
 QMAKE_LIBS_OPENGL       = -lGL
-QMAKE_LIBS_THREAD       = -lpthread
+QMAKE_LIBS_THREAD       = -pthread
 QMAKE_PREFIX_SHLIB      = lib
 QMAKE_EXTENSION_SHLIB   = dll
 QMAKE_PREFIX_STATICLIB  = lib
diff --git a/mkspecs/devices/linux-archos-gen8-g++/qmake.conf b/mkspecs/devices/linux-archos-gen8-g++/qmake.conf
index 66662f90..a93e4f98 100644
--- a/mkspecs/devices/linux-archos-gen8-g++/qmake.conf
+++ b/mkspecs/devices/linux-archos-gen8-g++/qmake.conf
@@ -41,7 +41,7 @@ QMAKE_CFLAGS           += $${COMPILER_FLAGS}
 QMAKE_CXXFLAGS         += $${COMPILER_FLAGS}
 QMAKE_CXXFLAGS_RELEASE += -O3
 
-QMAKE_LIBS             += -lrt -lpthread -ldl
+QMAKE_LIBS             += -lrt -pthread -ldl
 
 # Extra stuff (OpenGL, DirectFB, ...)
 QMAKE_INCDIR_EGL        = $$[QT_SYSROOT]/usr/include
diff --git a/mkspecs/devices/linux-beagleboard-g++/qmake.conf b/mkspecs/devices/linux-beagleboard-g++/qmake.conf
index 604da50f..9dbf82c7 100644
--- a/mkspecs/devices/linux-beagleboard-g++/qmake.conf
+++ b/mkspecs/devices/linux-beagleboard-g++/qmake.conf
@@ -33,7 +33,7 @@ QMAKE_CFLAGS           += $${COMPILER_FLAGS}
 QMAKE_CXXFLAGS         += $${COMPILER_FLAGS}
 QMAKE_CXXFLAGS_RELEASE += -O3
 
-QMAKE_LIBS             += -lrt -lpthread -ldl
+QMAKE_LIBS             += -lrt -pthread -ldl
 
 # Extra stuff (OpenGL, DirectFB, ...)
 QMAKE_INCDIR_EGL        =
diff --git a/mkspecs/hpuxi-g++-64/qmake.conf b/mkspecs/hpuxi-g++-64/qmake.conf
index 4c376de7..0a3ec98c 100644
--- a/mkspecs/hpuxi-g++-64/qmake.conf
+++ b/mkspecs/hpuxi-g++-64/qmake.conf
@@ -62,7 +62,7 @@ QMAKE_LFLAGS_DEBUG      =
 QMAKE_LFLAGS_SHLIB      = -fPIC -shared
 QMAKE_LFLAGS_PLUGIN     = $$QMAKE_LFLAGS_SHLIB
 QMAKE_LFLAGS_SONAME     = -Wl,+h,
-QMAKE_LFLAGS_THREAD     = -lpthread
+QMAKE_LFLAGS_THREAD     = -pthread
 QMAKE_LFLAGS_NOUNDEF    = -Wl,+noallowunsats
 QMAKE_LFLAGS_RPATH      = -Wl,+b,
 
@@ -70,7 +70,7 @@ QMAKE_LIBS              = -lm
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11
 QMAKE_LIBS_OPENGL       = -lGL
-QMAKE_LIBS_THREAD       = -lpthread
+QMAKE_LIBS_THREAD       = -pthread
 QMAKE_LIBS_YACC         = -ly
 
 QMAKE_AR                = ar cqs
diff --git a/mkspecs/hurd-g++/qmake.conf b/mkspecs/hurd-g++/qmake.conf
index f701755f..ba40b0b5 100644
--- a/mkspecs/hurd-g++/qmake.conf
+++ b/mkspecs/hurd-g++/qmake.conf
@@ -33,7 +33,7 @@ QMAKE_LIBS_EGL          = -lEGL
 QMAKE_LIBS_OPENGL       = -lGL
 QMAKE_LIBS_OPENGL_ES2   = -lGLESv2
 QMAKE_LIBS_OPENVG       = -lOpenVG
-QMAKE_LIBS_THREAD       = -lpthread
+QMAKE_LIBS_THREAD       = -pthread
 
 QMAKE_AR                = ar cqs
 QMAKE_OBJCOPY           = objcopy
diff --git a/mkspecs/linux-icc/qmake.conf b/mkspecs/linux-icc/qmake.conf
index 09f897d0..78323668 100644
--- a/mkspecs/linux-icc/qmake.conf
+++ b/mkspecs/linux-icc/qmake.conf
@@ -38,7 +38,7 @@ QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11 -lm
 QMAKE_LIBS_OPENGL       = -lGL
-QMAKE_LIBS_THREAD       = -lpthread
+QMAKE_LIBS_THREAD       = -pthread
 
 QMAKE_AR                = xiar cqs
 QMAKE_OBJCOPY           = objcopy
diff --git a/mkspecs/lynxos-g++/qmake.conf b/mkspecs/lynxos-g++/qmake.conf
index 1a44d932..8b2de6c9 100644
--- a/mkspecs/lynxos-g++/qmake.conf
+++ b/mkspecs/lynxos-g++/qmake.conf
@@ -65,7 +65,7 @@ QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11 -lm
 QMAKE_LIBS_OPENGL       = -lGL
-QMAKE_LIBS_THREAD       = -lpthread
+QMAKE_LIBS_THREAD       = -pthread
 
 QMAKE_AR                = ar cqs
 QMAKE_OBJCOPY           = objcopy
diff --git a/mkspecs/solaris-cc-64/qmake.conf b/mkspecs/solaris-cc-64/qmake.conf
index e2317de3..f6cc9aa4 100644
--- a/mkspecs/solaris-cc-64/qmake.conf
+++ b/mkspecs/solaris-cc-64/qmake.conf
@@ -81,7 +81,7 @@ QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11 -lresolv -lsocket -lnsl
 QMAKE_LIBS_OPENGL       = -lGL
-QMAKE_LIBS_THREAD       = -lpthread -lrt
+QMAKE_LIBS_THREAD       = -pthread -lrt
 QMAKE_LIBS_NETWORK      = -lresolv -lsocket -lxnet -lnsl
 
 QMAKE_AR                = CC -xar -o
diff --git a/mkspecs/solaris-cc/qmake.conf b/mkspecs/solaris-cc/qmake.conf
index 1a711e75..af1a142c 100644
--- a/mkspecs/solaris-cc/qmake.conf
+++ b/mkspecs/solaris-cc/qmake.conf
@@ -64,7 +64,7 @@ QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
 QMAKE_LIBS_X11          = -lXext -lX11 -lresolv -lsocket -lnsl
 QMAKE_LIBS_OPENGL       = -lGL
-QMAKE_LIBS_THREAD       = -lpthread -lrt
+QMAKE_LIBS_THREAD       = -pthread -lrt
 QMAKE_LIBS_NETWORK      = -lresolv -lsocket -lxnet -lnsl
 
 QMAKE_AR                = CC -xar -o
diff --git a/mkspecs/unsupported/linux-host-g++/qmake.conf b/mkspecs/unsupported/linux-host-g++/qmake.conf
index 7853ade8..b73763d1 100644
--- a/mkspecs/unsupported/linux-host-g++/qmake.conf
+++ b/mkspecs/unsupported/linux-host-g++/qmake.conf
@@ -102,7 +102,7 @@ QMAKE_LIBS_EGL          = -lEGL
 QMAKE_LIBS_OPENGL       = -lGL
 QMAKE_LIBS_OPENGL_ES2   = -lGLESv2
 QMAKE_LIBS_OPENVG       = -lOpenVG
-QMAKE_LIBS_THREAD       = -lpthread
+QMAKE_LIBS_THREAD       = -pthread
 
 QMAKE_AR                = host-ar cqs
 QMAKE_OBJCOPY           = host-objcopy
diff --git a/src/corelib/configure.json b/src/corelib/configure.json
index a9025a2d..89a69462 100644
--- a/src/corelib/configure.json
+++ b/src/corelib/configure.json
@@ -355,7 +355,7 @@
                     "std::future<int> f = std::async([]() { return 42; });",
                     "(void)f.get();"
                 ],
-                "qmake": "unix:!vxworks:LIBS += -lpthread"
+                "qmake": "unix:!vxworks:LIBS += -pthread"
             }
         },
         "cxx11_random": {
@@ -466,7 +466,7 @@
                     "shm_open(\"test\", O_RDWR | O_CREAT | O_EXCL, 0666);",
                     "shm_unlink(\"test\");"
                 ],
-                "qmake": "linux: LIBS += -lpthread -lrt"
+                "qmake": "linux: LIBS += -pthread -lrt"
             }
         },
         "linkat": {