Summary:
```
Set CMAKE_INSTALL_LIBDIR=lib/ and CMAKE_POSITION_INDEPENDENT_CODE=ON globally in depends, rather than per-package. CMAKE_INSTALL_LIBDIR=lib/ is needed to override the annoying GNUInstallDirs lib vs lib64 behaviour, and we always want PIC code. The PIC commit is the counterpart to the same Autotools change in #29488. I'm PRing these commits as I have a CMake branch building on top, and want to avoid adding the same workarounds to every package we are going to touch, but these can go in separately as the build should be tested for existing packages (i.e multiprocess).
```

Backport of [[bitcoin/bitcoin#29706 | core#29706]].

I also reverted our usage of cmake_opts to use the config_opts like core. Using cmake or not, this is still a configure stage and this will avoid mistakes during backports.

Depends on D16566.

Test Plan: This is actually a no-op but will be useful when building miniupnpc with cmake.

Reviewers: #bitcoin_abc, PiRK

Reviewed By: #bitcoin_abc, PiRK

Subscribers: PiRK

Differential Revision: https://reviews.bitcoinabc.org/D16567

Summary:
```
Set CMAKE_INSTALL_LIBDIR=lib/ and CMAKE_POSITION_INDEPENDENT_CODE=ON globally in depends, rather than per-package. CMAKE_INSTALL_LIBDIR=lib/ is needed to override the annoying GNUInstallDirs lib vs lib64 behaviour, and we always want PIC code. The PIC commit is the counterpart to the same Autotools change in #29488. I'm PRing these commits as I have a CMake branch building on top, and want to avoid adding the same workarounds to every package we are going to touch, but these can go in separately as the build should be tested for existing packages (i.e multiprocess).
```

Backport of [[bitcoin/bitcoin#29706 | core#29706]].

I also reverted our usage of cmake_opts to use the config_opts like core. Using cmake or not, this is still a configure stage and this will avoid mistakes during backports.

Depends on D16566.

Test Plan: This is actually a no-op but will be useful when building miniupnpc with cmake.

Reviewers: #bitcoin_abc, PiRK

Reviewed By: #bitcoin_abc, PiRK

Subscribers: PiRK

Differential Revision: https://reviews.bitcoinabc.org/D16567

76045bb depends: always set CMAKE_POSITION_INDEPENDENT_CODE=ON (fanquake)
d046236 depends: always set CMAKE_INSTALL_LIBDIR=lib/ (fanquake)

Pull request description:

  Set `CMAKE_INSTALL_LIBDIR=lib/` and `CMAKE_POSITION_INDEPENDENT_CODE=ON` globally in depends, rather than per-package. `CMAKE_INSTALL_LIBDIR=lib/` is needed to override the annoying [`GNUInstallDirs`](https://cmake.org/cmake/help/latest/module/GNUInstallDirs.html) `lib` vs `lib64` behaviour, and we always want PIC code. The PIC commit is the counterpart to the same Autotools change in bitcoin#29488. I'm PRing these commits as I have a CMake branch building on top, and want to avoid adding the same workarounds to every package we are going to touch, but these can go in separately as the build should be tested for existing packages (i.e multiprocess).

ACKs for top commit:
  hebasto:
    re-ACK 76045bb.
  theuni:
    utACK 76045bb. Both changes make sense to me, and both can be overridden if needed, though I can't imagine we'd need to.

Tree-SHA512: 655a0b6b7ee5a5820f52e8e919ef03fc216d29f13f3904f72b64ce57436510e073c903039488d5740535c56e1f6221267229238c5231de5f8467d238fd562578

76045bb depends: always set CMAKE_POSITION_INDEPENDENT_CODE=ON (fanquake)
d046236 depends: always set CMAKE_INSTALL_LIBDIR=lib/ (fanquake)

Pull request description:

  Set `CMAKE_INSTALL_LIBDIR=lib/` and `CMAKE_POSITION_INDEPENDENT_CODE=ON` globally in depends, rather than per-package. `CMAKE_INSTALL_LIBDIR=lib/` is needed to override the annoying [`GNUInstallDirs`](https://cmake.org/cmake/help/latest/module/GNUInstallDirs.html) `lib` vs `lib64` behaviour, and we always want PIC code. The PIC commit is the counterpart to the same Autotools change in bitcoin#29488. I'm PRing these commits as I have a CMake branch building on top, and want to avoid adding the same workarounds to every package we are going to touch, but these can go in separately as the build should be tested for existing packages (i.e multiprocess).

ACKs for top commit:
  hebasto:
    re-ACK 76045bb.
  theuni:
    utACK 76045bb. Both changes make sense to me, and both can be overridden if needed, though I can't imagine we'd need to.

Tree-SHA512: 655a0b6b7ee5a5820f52e8e919ef03fc216d29f13f3904f72b64ce57436510e073c903039488d5740535c56e1f6221267229238c5231de5f8467d238fd562578

76045bb depends: always set CMAKE_POSITION_INDEPENDENT_CODE=ON (fanquake)
d046236 depends: always set CMAKE_INSTALL_LIBDIR=lib/ (fanquake)

Pull request description:

  Set `CMAKE_INSTALL_LIBDIR=lib/` and `CMAKE_POSITION_INDEPENDENT_CODE=ON` globally in depends, rather than per-package. `CMAKE_INSTALL_LIBDIR=lib/` is needed to override the annoying [`GNUInstallDirs`](https://cmake.org/cmake/help/latest/module/GNUInstallDirs.html) `lib` vs `lib64` behaviour, and we always want PIC code. The PIC commit is the counterpart to the same Autotools change in bitcoin#29488. I'm PRing these commits as I have a CMake branch building on top, and want to avoid adding the same workarounds to every package we are going to touch, but these can go in separately as the build should be tested for existing packages (i.e multiprocess).

ACKs for top commit:
  hebasto:
    re-ACK 76045bb.
  theuni:
    utACK 76045bb. Both changes make sense to me, and both can be overridden if needed, though I can't imagine we'd need to.

Tree-SHA512: 655a0b6b7ee5a5820f52e8e919ef03fc216d29f13f3904f72b64ce57436510e073c903039488d5740535c56e1f6221267229238c5231de5f8467d238fd562578

2f751ed fixup! Merge bitcoin#30567: qt, build: Drop `QT_STATICPLUGIN` macro (pasta)
142245d Merge bitcoin#29733: build, macos: Drop unused `osx_volname` target (fanquake)
02f81e5 Merge bitcoin#23511: require glibc 2.18+ (pasta)
9f0e4ae Merge bitcoin#29706: depends: set two CMake options globally (fanquake)
be07bbe Merge bitcoin#28846: depends: fix libmultiprocess build on aarch64 (fanquake)
0dea194 Merge bitcoin#28856: depends: Build the `native_capnp` and `capnp` packages with CMake (fanquake)
a23eee1 partial Merge bitcoin#23619: build: Propagate user-defined flags to host packages (fanquake)
7cdacdc Merge bitcoin#30513: depends: Bump `libmultiprocess` for CMake fixes (merge-script)
4f44750 Merge bitcoin#30491: Fix MSVC warning C4273 "inconsistent dll linkage" (merge-script)
5ba1309 Merge bitcoin#30567: qt, build: Drop `QT_STATICPLUGIN` macro (merge-script)

Pull request description:

  ## Issue being fixed or feature implemented
  Batch of more PRs that I found during make work

  ## What was done?

  ## How Has This Been Tested?
  hasn't yet

  ## Breaking Changes

  ## Checklist:
    _Go over all the following points, and put an `x` in all the boxes that apply._
  - [ ] I have performed a self-review of my own code
  - [ ] I have commented my code, particularly in hard-to-understand areas
  - [ ] I have added or updated relevant unit/integration/functional/e2e tests
  - [ ] I have made corresponding changes to the documentation
  - [x] I have assigned this pull request to a milestone _(for repository code-owners and collaborators only)_

ACKs for top commit:
  knst:
    utACK 2f751ed
  UdjinM6:
    utACK 2f751ed

Tree-SHA512: 1d8433daaf8dc8c8f04beca1cf0281f0dc29a623e5e8ed941bcb556568d72d8ce0ac5b5c001b10645fdffaa4e7083b76d61075049b2418bb8dd9b5ba0f53a8a9