warning C4554: '>>' : check operator precedence for possible error; use parentheses to clarify precedence

Reviewed-by: Derek Buitenhuis

This simplifies ensuring proper flags are used when the default
is overridden by the system or on the command line.
Signed-off-by: Mans Rullgard <mans@mansr.com>

MSVC-built binaries should not be stripped.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

Some compilers are extra strict about register usage in main(),
disallowing ebp in inline asm there while allowing it elsewhere.
This change makes the test better reflect actual usage.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Martin Storsjö <martin@martin.st>

The headers on netbsd are not fully C99 compatible which leads to multiple
definitions of symbols in clang bit not with gcc.
AFAIK this has been fixed in netbsd trunk (didnt check though)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Marton Balint <cus@passwd.hu>

On 64 bit, the stack seems to be aligned enough for our needs.
Signed-off-by: Martin Storsjö <martin@martin.st>

The 64 bit cl.exe version 16.00.30319.01 crashes with an internal
compiler error on the current check (and thus deduces it isn't
supported, even if the actual usage in libavuil/x86/cpu.c works
fine), but by assigning the value from the intrinsic to a variable,
or returning it, it works fine.

This error is fixed in cl.exe version 16.00.40219.01.
Signed-off-by: Martin Storsjö <martin@martin.st>

This can come in handy for testing and possibly other purposes.

Some msvcrt versions (the static 64 bit libc in MSVC 10) have
a log2 function, but there is no declaration for it in the headers.
Therefore, the normal configure check might find it, but it can fail
during build or at runtime, depending on whether implicit function
declarations are an error or not.

Therefore simply ignore this function on this platform.
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Rather than modify the mplayer filter sources, just disable
vf_mp if inline assembly is not available.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

It is included for the open/read/write/close functions. On
MSVC, where this header does not exist, the same functions
are provided by io.h, which is already included.

On windows, these functions are provided by io.h. Make sure
io.h is included if it exists, regardless of the setmode
function.
Signed-off-by: Martin Storsjö <martin@martin.st>

Conflicts:

	configure
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This reverts commit ba537202.
A better implementation has been commited by the same author to qatar

Conflicts:

	configure
Found-by: jamal <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The default ones work, but outputs the preprocessed file on stdout
(into config.log).
Signed-off-by: Martin Storsjö <martin@martin.st>

Make internal small_strptime() function public, and use it in place of
strptime().
This allows to avoid a dependency on strptime() on systems which do not
support it.

In particular, fix trac ticket #992.

This disables the following warnings:
C4100: unreferenced formal parameter
 (1035 occurrances)
C4214: nonstandard extension used : bit field types other than int
 (609 occurances)
C4996: 'avpriv_snprintf': This function or variable may be unsafe.
       Consider using _snprintf_s instead. To disable deprecation,
       use _CRT_SECURE_NO_WARNINGS. See online help for details.
 (351 occurrances)
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Using ranlib is not required but prevents using the libraries with
msvc.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.eu>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

yasm generates a warning instead of an error when "CPU amdnop" is not supported, so the check always succeeds.

HAVE_CPUNOP as true when the available yasm version doesn't support amdnop doesn't make sense.
Check http://fate.ffmpeg.org/log.cgi?time=20120901143315&log=compile&slot=x86_64-archlinux-gcc-oldyasm to see the amount of warnings it generates.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

needed for avcodec_find_best_pix_fmt2()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This filter is based on the MPlayer decimate filter by Rich Felker.

Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>

This is necessary to avoid spuriously enabling _external or _inline
variants of arch extensions when they should be disabled.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This enables replacing the -l and -L flags used to specify the
just-built libraries when linking the tools and shared libs with
non-standard syntaxes.  System library flags are already handled
by the filtering mechanism in configure.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This is needed to link tools/cws2fws using a linker with non-standard
command line syntax.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This adds new HOSTLD and related settings for host linker allowing
it to be different from HOSTCC.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Some tools use different command line syntax for specifying output
when compiling and linking.  To accomodate these, separate variables
must be used.  No currently supported compilers/linkers are affected
by the change.
Signed-off-by: Mans Rullgard <mans@mansr.com>