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Generate the files in a single postprocessing step w/o intermediate files.
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Split version files into one line per symbol/directive to allow compatibility
with the Solaris linker without preprocessing and eliminate $ from version file
templates to simplify the postprocessing shell command.
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Restore alphabetical order in lists, break overly long lines, do some
prettyprinting, add some explanatory section comments, group parts
together that belong together logically.
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Assume that the default C compiler and the default ObjC compiler match
(default for OSX).
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
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Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
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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>
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Checkasm needs to use internal symbols that should not be made public.
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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>
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The options is useful to build position-independent executables on
hardened systems (e.g. Android L and Gentoo Hardened).
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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.
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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.
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Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
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Move the dxva check after the dependencies have been detected, make sure
the ole32 library exists.
Fixes build on non-Windows.
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
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SPARC is no longer being used in any multimedia-related fields and the
VIS optimizations only represent a maintenance burden.
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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>
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This includes moving libavformat/output-example to doc/examples/output.
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This will allow cleaner integration of building example programs.
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It will be used in other places than lavc.
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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/
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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>
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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>
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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>
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This is more consistent with the way we handle C #includes and
it simplifies the build system.
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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>
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This allows targets to include special objects when linking
executables without including them in (shared) libraries.
Signed-off-by: Mans Rullgard <mans@mansr.com>
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This avoids repeating cmdutils.o in both the prerequisites and
the link command.
Signed-off-by: Mans Rullgard <mans@mansr.com>
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The code fails to compile and is broken beyond repair.
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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>
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This is needed to link tools/cws2fws using a linker with non-standard
command line syntax.
Signed-off-by: Mans Rullgard <mans@mansr.com>
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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>
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Even though HOSTOBJS are not referenced directly in subdirectory Makefile
snippets right now, robustness requires resetting the variable contents.
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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>
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