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  5 2016-09-16T00:54:32  <rebroad> please could someone tell me where I can find the doc on gitian building for windows and arm?
  6 2016-09-16T00:54:44  <rebroad> oh found it
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 19 2016-09-16T03:49:54  <GitHub14> [bitcoin] fanquake opened pull request #8742: Specify Protobuf version 2 in paymentrequest.proto (master...proto2-vs-proto3) https://github.com/bitcoin/bitcoin/pull/8742
 20 2016-09-16T04:41:24  <GitHub3> [bitcoin] fanquake opened pull request #8743: Remove old manpages from contrib/debian in favour of doc/man (master...remove-old-manpages) https://github.com/bitcoin/bitcoin/pull/8743
 21 2016-09-16T04:44:14  <dgenr8> how does gitian know not to try to build qt for arm?
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 32 2016-09-16T06:53:52  <jonasschnelli> dgenr8: the configure (autoconf) process will auto-detect the qt libraries..
 33 2016-09-16T06:54:01  <jonasschnelli> If not available, it will be built headless.
 34 2016-09-16T06:54:12  <jonasschnelli> You might want to check the bitcoin-qt.m4 macro file
 35 2016-09-16T06:57:10  <jonasschnelli> dgenr8: and the magic point where qt gets not compiled for ARM is here: https://github.com/bitcoin/bitcoin/blob/master/depends/packages/packages.mk#L7
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 49 2016-09-16T09:25:24  <GitHub99> [bitcoin] MarcoFalke pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/a82e5d8220bb...1e5799c52535
 50 2016-09-16T09:25:24  <GitHub99> bitcoin/master fa27d99 MarcoFalke: [qa] create_cache: Delete temp dir when done
 51 2016-09-16T09:25:25  <GitHub99> bitcoin/master 1e5799c MarcoFalke: Merge #8713: [qa] create_cache: Delete temp dir when done...
 52 2016-09-16T09:25:39  <GitHub24> [bitcoin] MarcoFalke closed pull request #8713: [qa] create_cache: Delete temp dir when done (master...Mf1609-qaCacheTempdir) https://github.com/bitcoin/bitcoin/pull/8713
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 54 2016-09-16T09:32:31  <GitHub149> [bitcoin] MarcoFalke opened pull request #8744: [0.13.1] qa Backports (0.13...Mf1609-qaBackports) https://github.com/bitcoin/bitcoin/pull/8744
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 63 2016-09-16T11:11:03  <rebroad> would anyone know why there's code in addrman.cpp to randomize the addresses sent in response to a getaddr?
 64 2016-09-16T11:19:27  <rebroad> weird.... block 430068 has a checksum ox 0x00000000
 65 2016-09-16T11:19:33  <rebroad> of
 66 2016-09-16T11:23:00  <rebroad> hmmm, then again it came from which is doing various weird things...
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 75 2016-09-16T12:30:52  <sdaftuar> BlueMatt: sipa: there's an issue with the way the announce bit is set in 8393 (you can't change it).  github isn't letting me comment on the pull right now for some reason though
 76 2016-09-16T12:31:19  <sdaftuar> BlueMatt: anyway it's confusing to me to figure out what the logic for changing it should be
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 83 2016-09-16T13:03:58  <rebroad> why aren't problems with LogPrint detected at compile time as they would be with printf?
 84 2016-09-16T13:25:52  <BlueMatt> sipa: sdaftuar https://github.com/TheBlueMatt/bitcoin/commit/e2ce06c917a38ccca5e3554e578ccd28417c2174
 85 2016-09-16T13:25:56  <BlueMatt> should fix it
 86 2016-09-16T13:29:37  <BlueMatt> oh ffs, now github is sending me two emails for every comment
 87 2016-09-16T13:31:35  <sdaftuar> BlueMatt: thanks, that looks right
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 94 2016-09-16T14:36:24  <sipa> rebroad: compiler magic
 95 2016-09-16T14:36:53  <sipa> rebroad: the c compiler recognizes printf in a special way
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 98 2016-09-16T14:49:05  <GitHub44> [bitcoin] jonasschnelli opened pull request #8745: [PoC] Add wallet inspection and modification tool "bitcoin-wallet-tool" (master...2016/09/wallet-tool) https://github.com/bitcoin/bitcoin/pull/8745
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104 2016-09-16T15:18:19  <luke-jr> sipa: well, it's possible to get printf-formatting rules on other functions, but LogPrintf isn't as picky as real printf [cc: rebroad]
105 2016-09-16T15:20:50  <sipa> right, doing so would make the compiler warn about many things that are just fine for LogPrintf
106 2016-09-16T15:23:54  <luke-jr> I wonder if some trick like http://codereview.stackexchange.com/questions/85031/compile-time-printf-style-format-checking would work
107 2016-09-16T15:25:24  <GitHub64> [bitcoin] achow101 opened pull request #8746: [Qt][RPC] Hide passphrases in debug console history (master...hide-walletpassphrase) https://github.com/bitcoin/bitcoin/pull/8746
108 2016-09-16T15:27:20  <jonasschnelli> Luke-Jr: Did you had a look at the TinyFormat.h we are using?
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113 2016-09-16T16:26:30  <dgenr8> jonasschnelli: perfect, thank you!
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139 2016-09-16T18:47:22  <Chris_Stewart_5> Does a full node remove a competing chain after X amount of blocks being ahead of it? Can a full node store competing chains for a small amount of time?
140 2016-09-16T18:48:05  <sipa> if there is no pruning, we never prune
141 2016-09-16T18:48:12  <sipa> if we do, we prune after some time
142 2016-09-16T18:48:28  <sipa> regardless of whether it's main chain or not
143 2016-09-16T18:49:00  <Chris_Stewart_5> Hmm interesting. I've always wondered about this. So it will store ALL blocks indefinitely as long as they are valid ( meet POW threshold, all valid txs, etc?)
144 2016-09-16T18:49:33  <sipa> even invalid blocks
145 2016-09-16T18:49:46  <sipa> because not all checks can be done immediately
146 2016-09-16T18:51:00  <Chris_Stewart_5> Like  time on the relative scale of performing all sigops? Or time for something else that takes much longer?
147 2016-09-16T18:54:09  <Chris_Stewart_5> sigops in the block*
148 2016-09-16T18:54:46  <sipa> signature checks can only be done once we build the chainstate for tjat block, which requires processing the previous blocks
149 2016-09-16T18:55:07  <sipa> if there is a reorganization, we don't do that until the chain takes over the other chain
150 2016-09-16T18:57:40  <Chris_Stewart_5> Interesting, thanks for the explanation.
151 2016-09-16T18:58:19  <sipa> but we do certainly validate pow and syntactic correctness before storing blocks on dizk
152 2016-09-16T18:58:22  <sipa> *disk
153 2016-09-16T18:58:40  <sipa> which means an attack to fill up nodes' disks would be very expensove
154 2016-09-16T18:58:45  <sipa> *expensive
155 2016-09-16T18:58:55  <Chris_Stewart_5> yeah, that was what I just thinking about
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157 2016-09-16T19:01:33  <Chris_Stewart_5> What is the relative cost of a SHA256(SHA256()) compared to an ECDSA signature verification?
158 2016-09-16T19:02:28  <Chris_Stewart_5> because if i'm understanding this correctly, to store that block we need to still build the merkle tree to check POW validity
159 2016-09-16T19:05:36  <sipa> an ecdsa verification is equivalent to hashing around 15kB
160 2016-09-16T19:07:47  <GitHub107> [bitcoin] jonnynewbs opened pull request #8747: [rpc] Fix transaction size comments and RPC help text. (master...rpc_comments) https://github.com/bitcoin/bitcoin/pull/8747
161 2016-09-16T19:08:23  <Chris_Stewart_5> much cheaper i guess, haha.
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166 2016-09-16T20:07:14  <jl2012> why SIGPUSHONLY is not a policy?
167 2016-09-16T20:07:45  <luke-jr> ?
168 2016-09-16T20:08:39  <sipa> it is part of strictenc, no?
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175 2016-09-16T20:24:33  <luke-jr> Author: Johnson Lau <jl2012@users.noreply.github.com>
176 2016-09-16T20:24:39  <luke-jr> jl2012: is this intentional?
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178 2016-09-16T20:29:14  <luke-jr> jonasschnelli: no
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181 2016-09-16T20:39:24  <luke-jr> are we closing nested templates with >>  now? is that safe?
182 2016-09-16T20:43:16  <sipa> yes
183 2016-09-16T20:43:29  <sipa> it's required to be supported by c++11
184 2016-09-16T20:44:11  <sipa> you can't do it in c++03, as the lexer is required by the standard there to treat >> is a single token
185 2016-09-16T20:45:51  <sipa> also, (personal opinion on style), i despise '> >'.
186 2016-09-16T20:46:04  <luke-jr> >.>
187 2016-09-16T20:46:40  <midnightmagic> that's 1940s /w 2
188 2016-09-16T20:46:46  <midnightmagic> :-( sorry.
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