Fixes issue 1269.


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(wherein av_open_input_file assumes memory ownership).
Patch by Art Clarke a<surname> xuggle com


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If ff_neterrno() is checked instead of errno, that's probably what should be
used in the return value.
As a sideeffect, this gives better compatibility with Windows (CE), where
network errors aren't visible in errno.)
patch by Martin Storsjö, martin martin st


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Patch by Janne Grunau <j?nne-f?mpeg@jannau?net>.


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On Windows CE, the Winsock library name is ws2, not ws2_32.
patch by Martin Storsjö, martin martin st


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Nothing from the header was used and it caused trouble on Windows CE.


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This allows use of the add_*flags functions in the compiler detection
section.

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Patch by Martin Storsjo <martin at martin dot st>

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Patch by Martin Storsjo <martin at martin dot st>

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This fixes compilation on WinCE, which does not support _lseeki64.
patch by Ismail Dönmez, ismail namtrac org


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Patch by Art Clarke [aclark , xuggle . com]

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This can be used to map gcc-type flags to equivalents with other
compilers.

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It makes little sense to enable the variant without the main format.


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This avoids duplicating the full DEPEND_CMD line only to change some
flags.

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Setting this value using ?= caused some trouble if it was already
defined in the environment.

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Some of the values set here are modified by the main makefiles
and should not be reset when config.mak is included again.

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rather than prepend it.

This way there is the guarantee that the included headers are those in
the FFmpeg sources, rather than pre-installed headers referenced by
the user CPPFLAGS.


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Some compilers do not use the typical -c -o foo.o style.
This allows compiler-specific equivalents to be set by the
configure script.

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The VAAPI/VDPAU variants of foo require almost all of the code of foo.
Thus it makes little sense to enable just the accelerated variant.
This allows refactoring some object dependencies in the Makefiles.


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current code doesn't handle them properly, and they are a dubious construction
at best.


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