This patch fixes the undefined `aom_codec_control` symbol on Solaris
SPARC and i386 Solaris by adding "aom/aomcx.h" to
to `config/system-headers.mozbuild`. Thanks to Petr Sumbera
(petr.sumbera@oracle.com) for identifying and solving the issue [1].

[1] https://bugzilla.mozilla.org/show_bug.cgi?id=1900590#c16

Differential Revision: https://phabricator.services.mozilla.com/D214204

Differential Revision: https://phabricator.services.mozilla.com/D211720

It is no longer needed, commands should now be able to run without
environment manipulation.

Differential Revision: https://phabricator.services.mozilla.com/D212089

Differential Revision: https://phabricator.services.mozilla.com/D208955

Backed out 2 changesets (bug 1849075, bug 1878764) for causing remote failures at remote/shared/messagehandler/test/browser/*

Backed out changeset 0dbba1a7b5ab (bug 1878764)
Backed out changeset 86555ffb064f (bug 1849075)

Differential Revision: https://phabricator.services.mozilla.com/D208955

Backed out 3 changesets (bug 1849075, bug 1897015, bug 1878764) for causing Android arm32 startup crashes (bug 1897635).

Backed out changeset 916680b7cdce (bug 1897015)
Backed out changeset c6dd0210975b (bug 1878764)
Backed out changeset c9e28db916e5 (bug 1849075)

Actually remove the check for demangle, no supported target need that
check.

Also make library dependencies explicit instead of relying on "$LIBS".

Differential Revision: https://phabricator.services.mozilla.com/D203637

The -ldl flag was previously set globally, it's now set for the libs
that use it.

Also rationalize the difference between HAVE_DLOPEN and HAVE_DLFCN_H.

Differential Revision: https://phabricator.services.mozilla.com/D203594

Differential Revision: https://phabricator.services.mozilla.com/D208955

Bug 1872242 - Change how the last segment of `milestone_winversion` is generated to improve uniqueness r=firefox-build-system-reviewers,glandium

The previous implementation used days since Jan 1 2000 for the last
16-bit segment. This was not unique enough and caused issues with
Antivirus software if two different channels were built on the same day.

The new approach uses hours since the last milestone bump and uses the
VCS to determine how long ago that was relative to the build time. This
means it will always reset when a new cycle begins, but still be unique
since the digits in the first 3 segments have incremented.

We also now use two of the 16-bits to encode the channel (nightly, beta,
ESR, and release). So two channels built within the same hour will still
be unique.

Using only 14-bits to store the 'hours since version bump', we have
about ~682 days from a version bump before we reach the maximum value we
can store. If a build is done after that point, the segment value will
always be the maximum value for that channel.

Differential Revision: https://phabricator.services.mozilla.com/D200989

Backed out 3 changesets (bug 1883720, bug 1883719, bug 1883615) for causing multiple failures. CLOSED TREE

Backed out changeset 495b9e84ba9d (bug 1883720)
Backed out changeset 5a89cbc54dd2 (bug 1883615)
Backed out changeset 9d075e352b0e (bug 1883719)

Actually remove the check for demangle, no supported target need that
check.

Also make library dependencies explicit instead of relying on "$LIBS".

Differential Revision: https://phabricator.services.mozilla.com/D203637

The -ldl flag was previously set globally, it's now set for the libs
that use it.

Also rationalize the difference between HAVE_DLOPEN and HAVE_DLFCN_H.

Differential Revision: https://phabricator.services.mozilla.com/D203594

Bug 1894110 - Graceful failure path for soundtouch sandbox creation failure r=glandium,media-playback-reviewers,padenot

Differential Revision: https://phabricator.services.mozilla.com/D208947

Bug 1877926 - Make `mach build --keep-going` pass `--keep-going` to cargo. r=firefox-build-system-reviewers,nalexander

Differential Revision: https://phabricator.services.mozilla.com/D200261

Bug 1877926 - Make `mach build --keep-going` pass `--keep-going` to cargo. r=firefox-build-system-reviewers,nalexander

Differential Revision: https://phabricator.services.mozilla.com/D200261

Bug 1459764 - Build libraries in their FINAL_TARGET location rather than installing them during the build. r=firefox-build-system-reviewers,ahochheiden

Like bug 1255485, but for libraries.

Original patch by Chris Manchester.

Differential Revision: https://phabricator.services.mozilla.com/D63281

Bug 1889978 - Vendor ffmpeg master, after 7.0, update and reapply patch, remove old files, move bsf files into the bsf directory. r=media-playback-reviewers,alwu

This stubs out `libavcodec/dovi_rpu.h`.

Differential Revision: https://phabricator.services.mozilla.com/D206923

Bug 1882209 - Update encoding_rs to 0.8.34 to deal with rustc changes. r=glandium,supply-chain-reviewers

Differential Revision: https://phabricator.services.mozilla.com/D207167

Backed out changeset ce0c34e548fa (bug 1889978)
Backed out changeset 96e08e04fa4d (bug 1889978)
Backed out changeset 2aeb87615ee0 (bug 1889978)
Backed out changeset 2272c3a73ad3 (bug 1889978)
Backed out changeset dc81d0c812b8 (bug 1889978)

Backed out changeset b685d0db4248 (bug 1872242) for causing py3 failures in test_commit.py CLOSED TREE

Bug 1889978 - Vendor ffmpeg master, after 7.0, update and reapply patch, remove old files, move bsf files into the bsf directory. r=media-playback-reviewers,alwu

This stubs out `libavcodec/dovi_rpu.h`.

Differential Revision: https://phabricator.services.mozilla.com/D206923

Bug 1872242 - Change how the last segment of `milestone_winversion` is generated to improve uniqueness r=firefox-build-system-reviewers,glandium

The previous implementation used days since Jan 1 2000 for the last
16-bit segment. This was not unique enough and caused issues with
Antivirus software if two different channels were built on the same day.

The new approach uses hours since the last milestone bump and uses the
VCS to determine how long ago that was relative to the build time. This
means it will always reset when a new cycle begins, but still be unique
since the digits in the first 3 segments have incremented.

We also now use two of the 16-bits to encode the channel (nightly, beta,
ESR, and release). So two channels built within the same hour will still
be unique.

Using only 14-bits to store the 'hours since version bump', we have
about ~682 days from a version bump before we reach the maximum value we
can store. If a build is done after that point, the segment value will
always be the maximum value for that channel.

Differential Revision: https://phabricator.services.mozilla.com/D200989

Backed out changeset cef76365b011 (bug 1889978)
Backed out changeset fe050f00b35a (bug 1889978)
Backed out changeset f0be91bf67da (bug 1889978)
Backed out changeset 9ca936580fb8 (bug 1889978)

Bug 1889978 - Vendor ffmpeg master, after 7.0, update and reapply patch, remove old files, move bsf files into the bsf directory. r=media-playback-reviewers,alwu

This stubs out `libavcodec/dovi_rpu.h`.

Differential Revision: https://phabricator.services.mozilla.com/D206923

Differential Revision: https://phabricator.services.mozilla.com/D208580

Bug 1879975 - Newer versions of Windows disable pinning to the taskbar using older methods r=mpohle,bhearsum,nrishel,glandium,nalexander

This is adding in the new Windows 11 only version of taskbar pinning. For the new pinning to work, we need to use limited access feature tokens. Those are going to be made private and aren't included with this change.
This change will compile, and will work if built against the correct limited access feature tokens, as specified in developer local machine config files, but for every other build, the new taskbar pinning won't work and will fall back to the old methods.
I will implement the try / release building machines using the secret limited access feature tokens in a follow-up diff.

Differential Revision: https://phabricator.services.mozilla.com/D205004