MinGW: prefer C99 compliance by using replacement implementations.

This addresses several warnings caused by format modifiers that are not
supported by MSVCRT. MinGW provides replacement functions since mingw-runtime
3.15 so use them. See also
http://article.gmane.org/gmane.comp.gnu.mingw.user/27539/



git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28735 a1c6a512-1295-4272-9138-f99709370657

rbutil/rbutilqt/rbutilqt.pro

@@ -130,6 +130,9 @@ DEFINES += RBUTIL _LARGEFILE64_SOURCE
 
 # platform specific
 win32 {
+    # use MinGW's implementation of stdio functions for extended format string
+    # support.
+    DEFINES += __USE_MINGW_ANSI_STDIO=1
     LIBS += -lsetupapi -lnetapi32
 }
 win32:static {

rbutil/sansapatcher/Makefile

@@ -8,6 +8,7 @@ else
 ifeq ($(findstring MINGW,$(shell uname)),MINGW)
 OUTPUT=sansapatcher.exe
 CROSS=
+CFLAGS+=-D__USE_MINGW_ANSI_STDIO=1
 else
 OUTPUT=sansapatcher
 CROSS=i586-mingw32msvc-