Assume that the default C compiler and the default ObjC compiler match
(default for OSX).

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

The versioning facility in the Solaris linker differs from Linux in 3 ways:

1. It does not support globs in linker scripts for
symbol versioning -- this is a GNU extension.

2. The linker argument is '-M', instead of '--version-script'.

3. It is picky about line endings.
Each symbol or directive must be on a line of it's own.

Let's use make_sunver.pl from GCC to generate a version script that works
correctly with the Solaris linker. It's function is to correctly expand the
globs in the original generated version script.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Checkasm needs to use internal symbols that should not be made public.

This returns something like "v12_dev0-1332-g333a27c". This is much more
useful than the individual library versions, of which there are too
many, and which are very hard to map back to releases or git commits.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>

The options is useful to build position-independent executables on
hardened systems (e.g. Android L and Gentoo Hardened).

It has not been properly maintained for years and there is little hope
of that changing in the future.
It appears simpler to write a new replacement from scratch than
unbreaking it.

avcodec might depend on avresample and with --as-needed required symbols
might be get removed if avresample is linked before avcodec.
Fixes link failures of avprobe and avplay on aarch64 with
--enable-neon-clobber-test.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Move the dxva check after the dependencies have been detected, make sure
the ole32 library exists.

Fixes build on non-Windows.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

SPARC is no longer being used in any multimedia-related fields and the
VIS optimizations only represent a maintenance burden.

This fixes leftover issues from 14abeaa4 which caused make
rules for programs to not match up properly when the executable
suffix was nonempty.

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

This includes moving libavformat/output-example to doc/examples/output.

This will allow cleaner integration of building example programs.

It will be used in other places than lavc.

The gcov/lcov are a common toolchain for visualizing code coverage with
the GNU/Toolchain. The documentation and implementation of this
integration was heavily inspired from the blog entry by Mike Melanson:
http://multimedia.cx/eggs/using-lcov-with-ffmpeg/

This fixes removal of TOOLS as well as HOSTPROGS declared in the
top-level Makefile.  The clean target in common.mak needs to be
eval'd since the variables used within are reset for each library.

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

This is consistent with usual ARM nomenclature as well as with the
VFPV3 and NEON symbols which both lack the ARM prefix.

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

This is useful for debugging.  Dependencies for these files are not
generated due to limitations in many compilers.

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

This is more consistent with the way we handle C #includes and
it simplifies the build system.

This makes sure the previously always installed public header
lzo.h is installed if the LZO functionality is enabled.

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

This allows targets to include special objects when linking
executables without including them in (shared) libraries.

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

This avoids repeating cmdutils.o in both the prerequisites and
the link command.

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

The code fails to compile and is broken beyond repair.

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>

Even though HOSTOBJS are not referenced directly in subdirectory Makefile
snippets right now, robustness requires resetting the variable contents.