8541cbea2 depends: libX*: --disable-malloc0returnsnull in conf (Carl Dong)
0e752637a depends: libXext: Bump to 1.3.3 to fix _XEatDataWords (Carl Dong)
683b7d7a3 depends: Purge libtool archives (Carl Dong)
14209286d depends: Build secondary deps statically. (Carl Dong)
Pull request description:
```
We use pkg-config where we can, which generally replaces libtool at a
higher level and does not have the same downsides as libtool. These
archives sit in our depends tree with no purpose and pollute the final
bitcoin build with massive overlinking.
```
See [here](https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Handling_Libtool_Archives) for an explanation of the various problems libtool archives can cause.
Unrelated in every way except in spirit: `-D__LIBTOOL_IS_A_FOOL__`!!
-----
This PR is based on #16041, and therefore should be merged after #16041.
ACKs for commit 8541cb:
Tree-SHA512: 76030cf32361f0b1cfe14e3827a0cbec99994e7da00a56194ca40cf6cf7d87f78552f49d03d41ce9cf9b642992b90d993578ed1f0ad6bae15cd3f1c88dfaa4b0
* Fixes from Bitcoin #12474
This commit fixes building of boost and openssl on armv7l as described in Bitcoin issue #12474
* Prevent compiler from emitting illegal instructions to armv7l CPUs
* Limit dwsize for armv7l
* Remove superfluous cppflags argument
