Port our WebDAV content provider from serf/apr/apr-util, to curl.

Patch by: me

(adapted from commit 51ba086bf122dbb5b50fd813e5b9a81c051aa16b by Arrigo
Marchiori)

Changes required w/ AOO42X and trunk

Get macOS building nss again... Problem was that using env for CXX didn't correctly handle the required options

As of Python 3.8, the pkg-config "--libs" needed to build with Python, differ
between Python modules and applications that embed Python (see
https://bugs.python.org/issue36721).

Dete

As of Python 3.8, the pkg-config "--libs" needed to build with Python, differ
between Python modules and applications that embed Python (see
https://bugs.python.org/issue36721).

Detect the Python version, and if >= 3.8, query the "python-X.Y-embed"
package with pkg-config instead of "python-X.Y".

This is needed to build pyuno with Python 3.8.

Patch by: me

(cherry picked from commit f134535553051695dfbb71310003ab610fda2c83)

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some macOS changes:
o ensure current assembly of privateSnippetExecutor
o BigSur note
o Use vars to make it easier to change overall options
o Java8 compatibility

No longer support 10.7/10.8

Force SDKROOT for initial clang runs to work w/ Xcode 12.x

(cherry picked from commit 4869649e5eea75c9c3bd26b832efa4fe754ab118)

fakeroot is required for deb creation

(cherry picked from commit a87837cbd2064d4c86aa1d5cc0d84f5f13950aff)

Sometimes w/ need the "real" openssl, so allow for that in macOS

macOS reset back to s5abi and older version removed

(cherry picked from commit b682cb1878f75d5a69d02f8b5a3182ad77159d98)

Xcode 12.3 aware

(cherry picked from commit 65ec1307dba2738f97d69a4cbef009c127f345e1)

Baseline min macOS 10.9, which allows us to enable class_type_Info

This is the default for later clangs on macOS, but not all. So force it anyway.

Allow user to specify specific macOS SDK to use
(an interesting note: Firefox baselines 10.11 for their CI)

Use standard naming of UNO bridge... it really is gcc3

(cherry picked from commit ac209c856e64014dabdc2eac3f0b899d0ef84d6d)

Point people to DMAKE 4.13.1

(cherry picked from commit e6d389b340cbb79271b7f48640ce0dd0c850d4d2)

New URL for dmake

(cherry picked from commit 6d55344ade3d5a22c457d996194d8d8a0bbeee82)

The name of the tarball must == the resulting directory name of the extraction

(cherry picked from commit cdff27dd781b37b6c06e1506b69b8ec3978614b0)

Move to using (requiring) EPM 5.0.0 or later for AOO

(cherry picked from commit 6661e287d160b98618052ea914b7c66d3c46fa4e)

SRB = (SUN) Report Builder

(cherry picked from commit 0de819bfc3469527f6171d0663a571c49348ea8d)

Be SDK 11.0 aware for macOS builds and Xcode 12.2 (and Big Sur)

Allow for more recent macOS SDKs

Fixed typo (explicitely -> explicitly) and some more

(cherry picked from commit 56b8eddca8dfa483d4f8ff0d4ce385505d8407b6)

Use PNG for customized Intro/About bitmaps

(cherry picked from commit 28495963be29a275c1ae00a216f3c4af943c9930)

Removed check for GNU make 4.3

(cherry picked from commit cc6648e8b0b7b3b5d3b501531fab06dfe8218847)