Otherwise builds without explicit target result in silent no-ops.

It is of doubtful utility, adds complexity and no known users exist.

This allows filtering out some warning noise.

Generate the files in a single postprocessing step w/o intermediate files.

This is already taken care of by CLEANSUFFIXES.

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.

Removes an ugly $(if) to avoid conflicts with $(FFLIBS-) in the
top-level MAkefile.

Avoids including disabled library Makefiles.

Instead of setting FFLIBS in each library Makefile configure
exports FFLIBS-$library in config.mak.

Also drop support for building examples in library directories.

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 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>

Previously, object files in, for example, compat/ were left
after a clean or distclean was run.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.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 adds new HOSTLD and related settings for host linker allowing
it to be different from HOSTCC.

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

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: Mans Rullgard <mans@mansr.com>

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

This variable is set to the same value for all directories.
Adding the -L flags directly to LDFLAGS is simpler and achieves
the same thing.

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

This reduces startup latency for make invocations, which is especially
noticeable on systems that are slow or have slow I/O, like Windows.

Declaring tools associated with each library in their respective
makefiles allows these tools to easily depend on the correct
prerequisites and link against the libs they need.

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

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

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

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

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

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

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

This target was added to prevent some files being deleted
by make when using chains of implicit rules.  This is no
longer required.

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

This removes nonexisting targets from phony lists and puts them
all in one place.

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

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