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| author | Martin Storsjö <martin@martin.st> | 2013-05-15 23:51:49 +0300 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2013-05-19 18:22:32 +0300 |
| commit | 0b6899f154347cdd0aa66c5ec16ed9c65871766f (patch) | |
| tree | e14b198280b3b76e47b61d7ee1a6693d151c44c4 /configure | |
| parent | e45d6222cc925f491a83f82d37c3b02fa69b8e02 (diff) | |
| download | ffmpeg-0b6899f154347cdd0aa66c5ec16ed9c65871766f.tar.gz | |
configure: msvc: Set the target windows version to XP if no target is set
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.
Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 7 |
1 files changed, 7 insertions, 0 deletions
@@ -3201,6 +3201,13 @@ elif check_func_headers stdlib.h _get_doserrno; then add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \ _snprintf=avpriv_snprintf \ vsnprintf=avpriv_vsnprintf + # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to + # 0x601 by default unless something else is set by the user. + # This can easily lead to us detecting functions only present + # in such new versions and producing binaries requiring windows 7.0. + # Therefore explicitly set the default to XP unless the user has + # set something else on the command line. + check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502 elif check_cpp_condition stddef.h "defined __KLIBC__"; then libc_type=klibc fi |