And move the asm recipe to the top-level Makefile next to the other
local pattern rules for .o files.

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

This avoids spurious library rebuilds when only the test program
code is changed and simplifies the build system.

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

Also drop support for building examples in library directories.

This will check if -wN '..@*' is available and fall back on -x if not;
when none are available, do not run strip at all to prevent removing
functions that might be actually needed.

$(STRIP) always expands to something, because it is one of the commands
in the BRIEF list. This renders the condition pointless.

Signed-off-by: Ingo Brückl <ib@wupperonline.de>
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

The implementation of 25cb0c1a involves lots of spurious labels.

The effect of keeping those labels around is making debugging harder.
Those labels are meaningless, and complicate the disassembly. Also,
gdb can't tell the difference between them and function entry points.

This new strip command is irrelevant to any usage of Libav that would
have used the old fully stripped version, because the old one was for
non-debug use.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

This allows employing that number in library install commands.

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

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

Documentation includes only the externally visible API of the installed
headers.

Based on a patch by Anton Khirnov <anton@khirnov.net>.

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

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

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

The Microsoft linker uses the LIB environment variable which
clashes with a make variable of the same name.

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

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

Replace the single use of THIS_LIB with its value.

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

This was part of a ghastly hack that is long since gone.

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

This makes sure proper linker arguments are used for the tools and
test programs when shared libraries are enabled.  The tools are
linked using the usual -l flag while for test programs the full
name of the static library is used.

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

The test programs use internal symbols so cannot be linked against the
shared libs.  Linking against both shared and static is pointless and
might do something strange depending on the linker.  This changes the
dependencies so the test programs are linked only against the static
library for the component they belong to.

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

This adds support for the TI and Microsoft (lib.exe) variants of
the ar utility.

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

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>

This allows simplifying the Makefiles; it is no longer necessary to register
arch subdirectory Makefiles, just putting them in place is enough.

Many of the test programs directly access internal symbols not
exported from the shared libraries.  This allows tests to run
when configured with shared libraries.

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

The link target was missing $(EXAMPLES)

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>

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>

This generates dependencies for the *-test.o files ensuring
rebuilds when necessary.

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

The dependency was added conditional to a variable that is always defined,
so it is safe to add it directly.

Setting SRC_PATH to "." when building in-tree removes the need
for a quoted version of the source path since out-of-tree builds
are not possible if the pathname contains spaces.

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

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