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

This option facilitates testing shared libarary builds: for instance
fate builders do no longer need to set LD_LIBRARY_PATH as the binaries will
get the right search paths hardcoded into their executable file.

This option is only meant to be used for testing purposes: The installed
libraries must not move around in the file system, and doing so will
cause a lot of subtle problems. For more information why using RPATH is
dangerous, please refer to

https://blog.flameeyes.eu/2010/06/the-why-and-how-of-rpath

Since they are aliases for ogg enabling any of them enables ogg as well.

The same is done for GCC and clang already.

On mingw64 with c++11 support, the link libraries do contain a
nanosleep function, while it isn't exposed via the headers. Using
check_func_headers instead of a plain check_func fixes this
misdetection.
Signed-off-by: NMartin Storsjö <martin@martin.st>

The -MD option (for enabling a dynamically linked crt) gets interpreted
as a cpp option for generating dependency information (into a file named
'-.d', when preprocessing to a pipe). We shouldn't be passing
any and all C compiler flags to armasm (which is a plain assembler,
only with cpp bolted on via gas-preprocessor), but these are the
main conflicting ones.
Signed-off-by: NMartin Storsjö <martin@martin.st>

Older versions don't support all the features we test for now.
Signed-off-by: NMartin Storsjö <martin@martin.st>

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

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

Standalone GNU assembly is not used on x86.

This tries to find the most expressive part of the output of
armcc --vsn to include, giving a compiler identification of
"ARM Compiler 5.04 update 2 (build 82)" instead of just
"ARM Compiler 5.04" for armcc 5.0.

4.x versions of armcc output the following, for "armcc --vsn":
ARM C/C++ Compiler, RVCT4.0 [Build 925]
For evaluation purposes only
Software supplied by: ARM Limited

ARM C/C++ Compiler, 4.1 [Build 894]
For evaluation purposes only
Software supplied by: ARM Limited

5.0 versions output this:
Product: ARM Compiler 5.04
Component: ARM Compiler 5.04 update 2 (build 82)
Tool: armcc [5040081]
For evaluation purposes only
Software supplied by: ARM Limited
Signed-off-by: NMartin Storsjö <martin@martin.st>

llvm's integrated assembler supports the AArch64 asm on darwin since
August 2014. So check $as first before using gas-preprocessor.pl via
$gas. Makes the checks specific for that the architecture specific asm
needs. PPC Altivec and AArch64 needs on ':vararg' for macro arguments.
Arm needs in addition the '.altmacro' directive.

Initialise VC1DSPContext for parser as well as for decoder.
Note, the VC-1 code doesn't actually use the function pointer yet.
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

This permits re-use with parsers for codecs which use similar start codes.
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

Icecast is basically a convenience wrapper around the HTTP protocol.
Signed-off-by: NMartin Storsjö <martin@martin.st>

Distributors and integrators nowadays have less problems by leveraging
pkg-config files than having to set custom CFLAGS and LDFLAGS.

Check for an instruction that causes the (very old) Apple GCC 4.2
to error out ("unrecognizable insn").
Signed-off-by: NMartin Storsjö <martin@martin.st>

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

The library does not have external dependencies.

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

This obviates a dependency of the LJPEG encoder on mpegvideo.

The language and the program that consumes the language are not the same.

eatqi uses more than just the shared mpegvideo bits.