Minor, little update in the mingw compilation chain. -mwindows seems deprecated.

gcompris-installer.nsi.in

@@ -356,7 +356,6 @@ Section Uninstall
     Delete "$INSTDIR\libpangowin32-1.0-0.dll"
     Delete "$INSTDIR\libreadline.dll"
     Delete "$INSTDIR\libxml2.dll"
-    Delete "$INSTDIR\msvcr71.dll"
     Delete "$INSTDIR\pango.pyd"
     Delete "$INSTDIR\pangocairo.pyd"
     Delete "$INSTDIR\pthreadGC.dll"

global_win32.mak

@@ -28,7 +28,7 @@ endif
 # Use -fnative-struct instead of -mms-bitfields when using mingw 1.1
 # (gcc 2.95)
 CFLAGS += -O2 -Wall -mno-cygwin -mms-bitfields
-LDFLAGS = -mwindows
+LDFLAGS = -Wl,--subsystem,windows
 
 # If not specified, dlls are built with the default base address of 0x10000000.
 # When loaded into a process address space a dll will be rebased if its base