On 05/17/2013 04:20 PM, Martin Storsjö wrote:
MSVC 2010 (or more precisely, Windows SDK 7.0 which comes with MSVC
2010) sets _WIN32_WINNT to the constant for Windows 7 if nothing is
set. This could lead to the libav configure script detecting and
using functions only present in Windows 7 or newer, which in most
cases isn't desired. If the caller explicitly wants this, the caller
can add the _WIN32_WINNT define via --extra-cflags, setting the desired
version.
--- a/configure
+++ b/configure
@@ -3197,6 +3197,7 @@ elif check_func_headers stdlib.h _get_doserrno; then
add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
_snprintf=avpriv_snprintf \
vsnprintf=avpriv_vsnprintf
+ check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags
-D_WIN32_WINNT=0x0502
IMO this warrants a comment in the code about what you are trying to
accomplish. For example, I can never remember which _WIN32_WINNT
version corresponds to which Windows release.
Diego
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