OpenBSD defineds `TIOCGWINSZ` in `termios.h` which is already being
included, so this fix should work on most POSIX systems.

Closes: https://sourceforge.net/p/flac/bugs/435/

OpenBSD needs the enviroment variables `AUTOCONF_VERSION` and
`AUTOMAKE_VERSION` to be set in order to find these tools.

The script now tests (individually) if they are already set and if they
aren't sets them to something that is known to work on OpenBSD 5.8

According to:

    https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46158

this warning was removed in GCC 4.5.

Tristan Matthews authored Jan 24, 2016 and Erik de Castro Lopo committed Jan 25, 2016

Refs http://sourceforge.net/p/flac/bugs/424/



Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>

On some setups, benchmark_residual linkage fails with an undefined
reference to clock_gettime(). Adding -lrt fixes that.

Patch-from: Ozkan Sezer <sezeroz@gmail.com>

Patch-from: lvqcl <lvqcl.mail@gmail.com>

Patch-from: lvqcl <lvqcl.mail@gmail.com>

* src/flac/vorbiscomment.c:203: Uninitialized variable: converted.
* src/flac/vorbiscomment.c:210: Uninitialized variable: converted.
* src/test_libFLAC++/decoders.cpp:507: Memory leak: decoder.

Julien Nabet authored Jan 22, 2016 and Erik de Castro Lopo committed Jan 23, 2016

* src/libFLAC/metadata_iterators.c:3247: (error) va_list `va` was opened
  but not closed with va_end().
* src/share/grabbag/snprintf.c:66: (error) va_list `va` was opened but
  not closed with va_end().
* src/utils/flactimer/main.cpp:84: (warning) Either the condition `!fout`
  is redundant or there is possible null pointer dereference.

Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>
Closes: https://github.com/xiph/flac/pull/8

Also comment the fact that this macro should only be used for things
that are extremely unlikely to fail.

Patch-from: lvqcl <lvqcl.mail@gmail.com>

Patch-from: lvqcl <lvqcl.mail@gmail.com>

Patch-from: lvqcl <lvqcl.mail@gmail.com>

Patch-from: lvqcl <lvqcl.mail@gmail.com>

Thomas Zander authored Jan 09, 2016 and Erik de Castro Lopo committed Jan 10, 2016

This is more of a "human language versus programmer parlor" issue.
src/flac/main.c will return usage error for an argument greater
than FLAC__MAX_RICE_PARTITION_ORDER (15u).
While in programming "0..16" usually means "from zero to 15", in
natural human-to-human talk, it would rather mean "from zero to 16".
This changes the wording a bit to avoid this misunderstanding.

Closes: http://sourceforge.net/p/flac/bugs/352/


Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>

The old version of `FLAC__bitwriter_write_raw_uint32()` assumes that the
unused bits of the `val` argument are equal to zero, but don't check it.

This patch adds a new version of that function which does have the check
and then calls a new function `FLAC__bitwriter_write_raw_uint32_nocheck()`
which behaves like the old one.

Code updated to use these two functions as needed.

Patch-from: lvqcl <lvqcl.mail@gmail.com>

See the SF ticket for details.

Patch-from: lvqcl <lvqcl.mail@gmail.com>
Closes: https://sourceforge.net/p/flac/bugs/351/

Picture size must be smaller than the maximum block size.

Patch-from: lvqcl <lvqcl.mail@gmail.com>

This prevents a too large padding value overflowing the block length.

Patch-from: lvqcl <lvqcl.mail@gmail.com>
Closes: https://sourceforge.net/p/flac/bugs/284/

Thomas Zander authored Jan 03, 2016 and Erik de Castro Lopo committed Jan 04, 2016

- Retire 32bit variant of silog2(), since only the _wide variant is used
- Rename FLAC__bitmath_silog2_wide() to FLAC__bitmath_silog2()
- Replace existing implementation by shorter, clearer implementation
  using optimised routines from bitmath.h
- Update Copyright string to 2016 in changed files

Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>
Closes: https://github.com/xiph/flac/pull/6

The old 32 bit words the default which can be overridded with this
configure option.

This patch allows FLAC__BYTES_PER_WORD to be set to 8, but is disabled by
default.

Patch-from: lvqcl <lvqcl.mail@gmail.com>

Visual Studio 2013 and newer has better support for C99.

Patch-from: lvqcl <lvqcl.mail@gmail.com>

Patch-from: lvqcl <lvqcl.mail@gmail.com>

Assertions added, assertions simplified, unnecessary assignments
removed, mask calculations improved.

Patch-from: lvqcl <lvqcl.mail@gmail.com>

* Drop support from MSVC earlier than 2005.
* Make types of FLAC__clz_uint32() and FLAC__clz_soft_uint32() the same.
* Remove un-needed parens.
* Cleanup FLAC__bitmath_ilog2_wide().

Patch-from: lvqcl <lvqcl.mail@gmail.com>

Patch-from: lvqcl <lvqcl.mail@gmail.com>

Patch-from: lvqcl <lvqcl.mail@gmail.com>

Patch-from: lvqcl <lvqcl.mail@gmail.com>

Thomas Zander authored Dec 24, 2015 and Erik de Castro Lopo committed Dec 25, 2015

Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>

Patch-from: lvqcl <lvqcl.mail@gmail.com>

Remove incorrect assignment to `encoder->protected_->state`.

Windows can suffer quite badly from disk fragmentations. To avoid
this, on Windows, the FILE* buffer size was set to 10Meg. However,
this huge buffer is undesireable when writing to a eg a pipe.

This patch updates the behaviour to only use the huge buffer when
writing to disk.

Patch-from: lvqcl <lvqcl.mail@gmail.com>
Closes: https://sourceforge.net/p/flac/feature-requests/114/

Patch-from: lvqcl <lvqcl.mail@gmail.com>

lvqvl found that 32-bit total_error_* variables can overflow when the
right encoding parameters are used. This patch disables them.

Patch-from: lvqcl <lvqcl.mail@gmail.com>

Patch-from: lvqcl <lvqcl.mail@gmail.com>