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

Fixes build on non-Windows.

Signed-off-by: NAnton 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: NMartin 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: NMans 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: NMans 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: NMans 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: NMartin Storsjö <martin@martin.st>

This allows targets to include special objects when linking
executables without including them in (shared) libraries.
Signed-off-by: NMans Rullgard <mans@mansr.com>

This avoids repeating cmdutils.o in both the prerequisites and
the link command.
Signed-off-by: NMans 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: NMans Rullgard <mans@mansr.com>

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

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

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

Many compilers need special flags to compile *.h files as regular
source code, if they will do so at all.  Rather than hoping all
compilers will have such a flag and adding mappings for it, create
wrapper .c files for test building single headers.

This allows using the regular rule for compiling C files without the
need for special flags, and it also provides proper dependency tracking
for these objects.
Signed-off-by: NMans Rullgard <mans@mansr.com>

nasm requires a trailing / on paths specified with -I.
It does no harm with yasm.
Signed-off-by: NMans Rullgard <mans@mansr.com>

This simplifies adding extra flags for individual programs
and also allows more than one object file per program.
Signed-off-by: NMans Rullgard <mans@mansr.com>

This allows non-standard replacements for the -c compiler flag.
Some compilers use other flags or no flag at all in place of
the usual one.
Signed-off-by: NMans Rullgard <mans@mansr.com>

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

This adds a full identification probe of CC, AS, LD and HOSTCC,
and sets up correct flags and dependency tracking for each.
Signed-off-by: NMans Rullgard <mans@mansr.com>