build: force a c++ standard to be specified #9831
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Newer compilers may switch to newer standards by default. For example, gcc6 uses std=gnu++14 by default.
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Yes - the rationale for this is that we want to avoid c++14 use to creep into the source code before we've decided we want c++14. I think it's too soon for that. It'd be nice to not bump our minimum clang/g++ requirements for a while. |
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Concept ACK |
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Tested ACK 9829c54: |
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And it is still passed on systems where it is needed. The only difference here is a configure output missing the following line: ACK 9829c54 |
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I think that's to be expected, because we no longer care about the default, we always specify it. |
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@paveljanik Yes, that's the intended change. |
laanwj
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Feb 23, 2017
9829c54 build: force a c++ standard to be specified (Cory Fields)
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zkbot
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Build system improvements Includes commits cherry-picked from the following upstream PRs: - bitcoin/bitcoin#6978 - Only the first commit (second is for QT) - bitcoin/bitcoin#7059 - bitcoin/bitcoin#7603 - Only the first commit (the rest are for QT) - bitcoin/bitcoin#7954 - bitcoin/bitcoin#8314 - Only the second commit (first is for QT) - bitcoin/bitcoin#8504 - Only the first commit (second was undoing something we didn't have) - bitcoin/bitcoin#8520 - bitcoin/bitcoin#8563 - bitcoin/bitcoin#8249 - bitcoin/bitcoin#9156 - bitcoin/bitcoin#9831 - bitcoin/bitcoin#9789 - bitcoin/bitcoin#10766 Part of #2074.
zkbot
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Build system improvements Includes commits cherry-picked from the following upstream PRs: - bitcoin/bitcoin#6978 - Only the first commit (second is for QT) - bitcoin/bitcoin#7059 - bitcoin/bitcoin#7603 - Only the first commit (without the `BITCOIN_QT_BIN` variable; the rest are for QT) - bitcoin/bitcoin#7954 - bitcoin/bitcoin#8314 - Only the second commit (first is for QT) - bitcoin/bitcoin#8504 - Only the first commit (second was undoing something we didn't have) - bitcoin/bitcoin#8520 - bitcoin/bitcoin#8563 - bitcoin/bitcoin#8249 - bitcoin/bitcoin#9156 - bitcoin/bitcoin#9831 - bitcoin/bitcoin#9789 - bitcoin/bitcoin#10766 Part of #2074.
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Jan 25, 2018
Build system improvements Includes commits cherry-picked from the following upstream PRs: - bitcoin/bitcoin#6978 - Only the first commit (second is for QT) - bitcoin/bitcoin#7059 - bitcoin/bitcoin#7603 - Only the first commit (without the `BITCOIN_QT_BIN` variable; the rest are for QT) - bitcoin/bitcoin#7954 - bitcoin/bitcoin#8314 - Only the second commit (first is for QT) - bitcoin/bitcoin#8504 - Only the first commit (second was undoing something we didn't have) - bitcoin/bitcoin#8520 - bitcoin/bitcoin#8563 - bitcoin/bitcoin#8249 - bitcoin/bitcoin#9156 - bitcoin/bitcoin#9831 - bitcoin/bitcoin#9789 - bitcoin/bitcoin#10766 Part of #2074.
renium9
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Build system improvements Includes commits cherry-picked from the following upstream PRs: - bitcoin/bitcoin#6978 - Only the first commit (second is for QT) - bitcoin/bitcoin#7059 - bitcoin/bitcoin#7603 - Only the first commit (without the `BITCOIN_QT_BIN` variable; the rest are for QT) - bitcoin/bitcoin#7954 - bitcoin/bitcoin#8314 - Only the second commit (first is for QT) - bitcoin/bitcoin#8504 - Only the first commit (second was undoing something we didn't have) - bitcoin/bitcoin#8520 - bitcoin/bitcoin#8563 - bitcoin/bitcoin#8249 - bitcoin/bitcoin#9156 - bitcoin/bitcoin#9831 - bitcoin/bitcoin#9789 - bitcoin/bitcoin#10766 Part of #2074. # Conflicts: # configure.ac # src/Makefile.am # src/Makefile.gtest.include # src/Makefile.test.include # zcutil/build.sh
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@laanwj suggested this here #9753 (comment).
Newer compilers may switch to newer standards by default. For example, gcc6 uses std=gnu++14 by default.
Note that this makes testing c++14 impractical. Until we're ready to investigate that transition, I don't think that's a problem.
I'll attempt to upstream the macro changes post-merge.