ar -D: Operate in deterministic mode. When adding files and the archive
index use zero for UIDs, GIDs, timestamps, and use consistent file modes
for all files. When this option is used, if ar is used with identical
options and identical input files, multiple runs will create identical
output files regardless of the input files' owners, groups, file modes,
or modification times.
It appears that the output was different every time.
This doesn't affect the final bitcoind/bitcoin-qt, but is confusing
nevertheless.
Fix it by using FAKETIME and zipping files in deterministic order.
- Add 'g++' package (virtualbox images don't have this by default)
- Workaround for determinism in Qt5 resources
- Pass --disable-maintainer-mode --disable-dependency-tracking to
configure for libqrencode to avoid random errors about missing m4
directory
- Fix typo -with-pic -> --with-pic
It is not necessary to rebuild dependencies after this commit.
Fixes#3610 and #3612.
Instead of using the boost provided by Ubuntu 12.04, build our own
dependency like we do for Windows.
This allows using a much newer version (1.55 versus 1.46) as well as
building with `-fPIC` so that `-pie` can be used in the x86-64 build.
