rc_include rc/CC.rc rc/windows.h.rc rc/Wall.rc

appendln CPPFLAGS "-Werror"  # abort if any warnings
prog='
#include <stdio.h>
void test() { printf("%lld", (long long)1); }
'

x=
if ! rc_compile cc link "$prog"; then
    x="-D__USE_MINGW_ANSI_STDIO=1"
    rc_appendln CPPFLAGS "$x"
    rc_compile cc link "$prog"
fi
rc_save