diff --git a/CMakeLists.txt b/CMakeLists.txt
index 59a3b34f8..10f14a967 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -88,10 +88,6 @@ CMAKE_DEPENDENT_OPTION(VNC "VNC renderer" ON "DEV_BRANCH" OFF)
 CMAKE_DEPENDENT_OPTION(XL24 "ATI VGA Wonder XL24 (ATI-28800-6)" ON "DEV_BRANCH" OFF)
 CMAKE_DEPENDENT_OPTION(VECT486VL "HP Vectra 486VL" ON "DEV_BRANCH" OFF)
 
-if(WIN32)
-	option(PTHREAD "Use POSIX threads (pthreads) instead of Win32 threads" ON)
-endif()
-
 # HACK: Avoid a MSVC2019 compiler bug on ARM64 Debug builds
 if(MSVC_TOOLSET_VERSION GREATER_EQUAL 142 AND ARCH STREQUAL "arm64")
 	# Define a cache option in case somebody wants to disable this workaround
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 4114b3e11..a2bead497 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -47,22 +47,6 @@ if(VNC)
 	endif()
 endif()
 
-if(NOT WIN32 OR PTHREAD)
-	target_sources(86Box PRIVATE thread.c)
-	if(WIN32 AND VCPKG_TOOLCHAIN)
-		find_package(pthreads REQUIRED)
-		if (PThreads4W_FOUND)
-			target_link_libraries(86Box PThreads4W::PThreads4W)
-		else()
-			target_link_libraries(86Box pthreads)
-		endif()
-	else()
-		set(THREADS_PREFER_PTHREAD_FLAG TRUE)
-		find_package(Threads REQUIRED)
-		target_link_libraries(86Box Threads::Threads)
-	endif()
-endif()
-
 target_link_libraries(86Box cpu chipset mch dev mem fdd game cdrom zip mo hdd
 	net print scsi sio snd vid voodoo plat ui)
 
diff --git a/src/unix/CMakeLists.txt b/src/unix/CMakeLists.txt
index 193de96c0..d0524e38b 100644
--- a/src/unix/CMakeLists.txt
+++ b/src/unix/CMakeLists.txt
@@ -8,10 +8,14 @@ if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
 else()
     set(PLAT_SOURCES unix_midi.c)
 endif()
-add_library(plat STATIC ${PLAT_SOURCES})
+add_library(plat STATIC ${PLAT_SOURCES} unix_thread.c)
 add_library(ui STATIC unix.c unix_sdl.c unix_cdrom.c)
 target_compile_definitions(ui PUBLIC _FILE_OFFSET_BITS=64)
 target_link_libraries(ui dl)
 if (ALSA_FOUND)
     target_link_libraries(plat ALSA::ALSA)
-endif()
\ No newline at end of file
+endif()
+
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
+find_package(Threads REQUIRED)
+target_link_libraries(86Box Threads::Threads)
\ No newline at end of file
diff --git a/src/win/CMakeLists.txt b/src/win/CMakeLists.txt
index 527f64f51..e1b3fd942 100644
--- a/src/win/CMakeLists.txt
+++ b/src/win/CMakeLists.txt
@@ -15,7 +15,7 @@
 
 enable_language(RC)
 
-add_library(plat OBJECT win.c win_dynld.c win_cdrom.c
+add_library(plat OBJECT win.c win_dynld.c win_cdrom.c win_thread.c
 	win_keyboard.c win_crashdump.c win_midi.c win_mouse.c)
 
 add_library(ui OBJECT win_ui.c win_stbar.c win_sdl.c win_dialog.c win_about.c
@@ -58,9 +58,5 @@ if(OPENGL)
 	target_sources(ui PRIVATE glad.c win_opengl.c win_opengl_glslp.c)
 endif()
 
-if(NOT PTHREAD)
-	target_sources(plat PRIVATE win_thread.c)
-endif()
-
 target_link_libraries(86Box advapi32 comctl32 comdlg32 gdi32 shell32 iphlpapi
 	dxguid imm32 hid setupapi uxtheme version winmm psapi)
diff --git a/src/win/Makefile.mingw b/src/win/Makefile.mingw
index 7be4baa8f..d86099219 100644
--- a/src/win/Makefile.mingw
+++ b/src/win/Makefile.mingw
@@ -26,10 +26,6 @@ ifndef DEV_BUILD
 DEV_BUILD	:= n
 endif
 
-ifneq ($(PTHREAD), n)
-  PTHREAD	:= y
-endif
-
 ifeq ($(DEV_BUILD), y)
  ifndef DEBUG
   DEBUG		:= y
@@ -611,17 +607,10 @@ CXXFLAGS	:= $(CFLAGS)
 #########################################################################
 #		Create the (final) list of objects to build.		#
 #########################################################################
-ifeq ($(PTHREAD), y)
-MAINOBJ		:= 86box.o config.o random.o timer.o io.o acpi.o apm.o dma.o ddma.o \
-		   nmi.o pic.o pit.o port_92.o ppi.o pci.o mca.o \
-		   usb.o device.o nvr.o nvr_at.o nvr_ps2.o thread.o \
-		   $(VNCOBJ)
-else
 MAINOBJ		:= 86box.o config.o random.o timer.o io.o acpi.o apm.o dma.o ddma.o \
 		   nmi.o pic.o pit.o port_92.o ppi.o pci.o mca.o \
 		   usb.o device.o nvr.o nvr_at.o nvr_ps2.o \
 		   $(VNCOBJ)
-endif
 
 MEMOBJ		:= catalyst_flash.o i2c_eeprom.o intel_flash.o mem.o rom.o smram.o spd.o sst_flash.o
 
@@ -802,19 +791,11 @@ VOODOOOBJ	:= vid_voodoo.o vid_voodoo_banshee.o \
 		    vid_voodoo_render.o vid_voodoo_setup.o \
 		    vid_voodoo_texture.o
 
-ifeq ($(PTHREAD), y)
-PLATOBJ		:= win.o \
-		    win_dynld.o \
-		    win_cdrom.o win_keyboard.o \
-		    win_crashdump.o win_midi.o \
-		    win_mouse.o
-else
 PLATOBJ		:= win.o \
 		    win_dynld.o win_thread.o \
 		    win_cdrom.o win_keyboard.o \
 		    win_crashdump.o win_midi.o \
 		    win_mouse.o
-endif
 
 ifeq ($(DINPUT), y)
  PLATOBJ	+= win_joystick.o
@@ -840,11 +821,7 @@ endif
 ifneq ($(WX), n)
 LIBS		+= $(WX_LIBS) -lm
 endif
-ifeq ($(PTHREAD), y)
-LIBS		+= -lpng -lz -lwsock32 -lshell32 -liphlpapi -lpsapi -lSDL2 -limm32 -lhid -lsetupapi -loleaut32 -luxtheme -lversion -lwinmm -static -lstdc++ -lpthread
-else
 LIBS		+= -lpng -lz -lwsock32 -lshell32 -liphlpapi -lpsapi -lSDL2 -limm32 -lhid -lsetupapi -loleaut32 -luxtheme -lversion -lwinmm -static -lstdc++
-endif
 ifneq ($(X64), y)
 ifneq ($(ARM64), y)
 LIBS		+= -Wl,--large-address-aware