Correct various pre-processor defines for sparc64 and in mozjemalloc use the JS arm64 allocator on Linux/sparc64.
This corrects build problems opn Linux sparc64 and is in line with bugzilla bug #1275204.
https://bugzilla.mozilla.org/show_bug.cgi?id=137126612e63e91af
This sounds absurd, and the fact that we had to change a C++ comment to a C-style comment on account of this may seem hilarious and inconsequential, but this isapparently not a joke and leaving it as it is now may be a bad idea.
Current versions of libcubeb already have a Sun audio implementation, but in Firefox 52 and earlier, this was all they had. I'm not completely happy with this implementation because it has issues like video freezing if the soundcard isn't working, but I think fixing this or pulling in a newer libcubeb would be going too far for too little gain.
Upstream can now code generate the rtcd interface files directly from the aom_config.h header, so we no longer have to generate an intermediate file by running lint_config.sh. This also means we can remove the code for creating a temporary directory.
This changes generate_sources_mozbuild.sh to call generate_sources_mozbuild.py to generate sources.mozbuild and config files and removes the parts of the script that are no longer necessary.
This revision of libaom has some conflicts with our vendor script
and build system. A number of new .asm files have the same basename
as .c files, which our build system cannot handle.
To work around this, I manually renamed the conflicting
files in the filesystem and sources.mozbuild.
Also add av1_convolve_scale_sse4.c to sources.mozbuild manually.
This is needed by the build but for some reason isn't picked up
by generate_sources_mozbuild.sh.
aom_dsp_rtcd_defs.pl checks only whether this key is present in the config, not whether it is set to true or not. Our script sets CONFIG_FOO=no for disabled options, while the upstream build system omits them, resulting in extra symbol declarations the build will never define.
Work around this by stripping the offending disabled config key if it is disabled.
