diff --git a/ica/CMakeLists.txt b/ica/CMakeLists.txt
index 9bcdbac..6d986c3 100644
--- a/ica/CMakeLists.txt
+++ b/ica/CMakeLists.txt
@@ -77,7 +77,7 @@ IF(ITALC_BUILD_WIN32)
 
 	ADD_SUBDIRECTORY(win32)
 
-	ADD_DEFINITIONS(-DX11VNC_IPV6=0 -DPTW32_STATIC_LIB -DTLS=__thread -DX11VNC_USLEEP)
+	ADD_DEFINITIONS(-DX11VNC_IPV6=0 -DPTW32_STATIC_LIB -DTLS=__thread -DX11VNC_USLEEP -D__USE_MINGW_ANSI_STDIO=1)
 	INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/win32 ${CMAKE_CURRENT_SOURCE_DIR}/win32/winvnc ${CMAKE_CURRENT_SOURCE_DIR}/win32/winvnc/omnithread ${CMAKE_CURRENT_SOURCE_DIR}/win32/winvnc/winvnc ${CMAKE_CURRENT_SOURCE_DIR}/x11/libvncclient)
 	SET(platform_SOURCES
 		${CMAKE_CURRENT_SOURCE_DIR}/win32/ultravnc.cpp
@@ -165,7 +165,7 @@ IF(ITALC_BUILD_WIN32)
 ENDIF(ITALC_BUILD_WIN32)
 
 IF(ITALC_BUILD_WIN64)
-	ADD_DEFINITIONS(-D_X64)
+	ADD_DEFINITIONS(-D_X64 -D__USE_MINGW_ANSI_STDIO=1)
 ENDIF(ITALC_BUILD_WIN64)
 
 
diff --git a/ica/win32/CMakeLists.txt b/ica/win32/CMakeLists.txt
index 6064ddb..f05e338 100644
--- a/ica/win32/CMakeLists.txt
+++ b/ica/win32/CMakeLists.txt
@@ -18,7 +18,7 @@ ADD_LIBRARY(vnchooks MODULE
 SET_TARGET_PROPERTIES(vnchooks PROPERTIES PREFIX "")
 
 
-ADD_DEFINITIONS(-DAUTHSSP_EXPORTS -DULTRAVNC_ITALC_SUPPORT)
+ADD_DEFINITIONS(-DAUTHSSP_EXPORTS -DULTRAVNC_ITALC_SUPPORT -D__USE_MINGW_ANSI_STDIO=1)
 SET(AUTHSSP_WINRC "${CMAKE_CURRENT_BINARY_DIR}/authssprc.obj")
 ADD_CUSTOM_COMMAND(OUTPUT ${AUTHSSP_WINRC}
 						COMMAND ${WINDRES}
diff --git a/ima/CMakeLists.txt b/ima/CMakeLists.txt
index 06f9b73..3edeb9e 100644
--- a/ima/CMakeLists.txt
+++ b/ima/CMakeLists.txt
@@ -9,6 +9,7 @@ QT4_TRANSLATIONS_FOR_QRC(${QRC_FILE} ${italc_SOURCES} ${italc_INCLUDES})
 
 IF(ITALC_BUILD_WIN32)
 	SET(WINRC "${CMAKE_CURRENT_BINARY_DIR}/italcrc.obj")
+	ADD_DEFINITIONS(-D__USE_MINGW_ANSI_STDIO=1)
 	ADD_CUSTOM_COMMAND(OUTPUT ${WINRC}
 						COMMAND ${WINDRES}
 							-I${CMAKE_CURRENT_SOURCE_DIR}
diff --git a/imc/CMakeLists.txt b/imc/CMakeLists.txt
index d088587..6a59a4a 100644
--- a/imc/CMakeLists.txt
+++ b/imc/CMakeLists.txt
@@ -9,6 +9,7 @@ QT4_TRANSLATIONS_FOR_QRC(${QRC_FILE} ${imc_SOURCES} ${imc_INCLUDES})
 
 IF(ITALC_BUILD_WIN32)
 	SET(WINRC "${CMAKE_CURRENT_BINARY_DIR}/imcrc.obj")
+	ADD_DEFINITIONS(-D__USE_MINGW_ANSI_STDIO=1)
 	ADD_CUSTOM_COMMAND(OUTPUT ${WINRC}
 						COMMAND ${WINDRES}
 							-I${CMAKE_CURRENT_SOURCE_DIR}