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Hello *, |
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Sorry, I'm not a C++ expert, and I need some help. I'm trying to bump |
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sci-mathematics/ginac and some of its revdeps. The current ginac is 1.7.2, |
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and it needs -std=c++11 (or gnu++11). I added append-cxxflags -std=c++11 |
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to src_configure; also added src_test which was missing previously. ginac |
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compiles and passes tests, also ginsh works. Fine. |
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The current sci-physics/nestedsums is 1.5.1, it depends on |
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>=sci-mathematics/ginac-1.7 and needs -std=c++11. I've made the necessary |
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changes to the ebuild, it compiles and seems to work (its testsuite is |
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broken, cannot use it). Also fine. |
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Then there's sci-physics/reduze. It is still 2.1, no new versions have |
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appeared. It has to be recompiles after upgrading ginac. |
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If I compile it without -std=c++11, I get a lot of syntax errors in .h |
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files from ginac: |
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/usr/include/ginac/ptr.h:37:13: error: expected ‘;’ at end of member |
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declaration |
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/usr/include/ginac/ptr.h:37:15: error: ‘noexcept’ does not name a type |
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/usr/include/ginac/ptr.h:57:31: error: ‘>>’ should be ‘> >’ within a |
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nested template argument list |
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/usr/include/ginac/ptr.h:124:44: error: expected initializer before |
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‘noexcept’ |
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etc. etc. |
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If I compile it with -std=c++11, I get errors about operators from stdlib: |
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/var/tmp/portage/sci-physics/reduze-2.1/work/reduze-2.1/reduze/files.cpp:726:27: |
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error: no match for ‘operator<<’ (operand types are |
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‘std::basic_ostream<char>’ and ‘std::ofstream {aka |
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std::basic_ofstream<char>}’) |
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/var/tmp/portage/sci-physics/reduze-2.1/work/reduze-2.1/reduze/functions.h:258:46: |
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error: cannot bind ‘std::basic_ostream<char>’ lvalue to |
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‘std::basic_ostream<char>&&’ |
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etc. |
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Does this mean that in order to compile it stdlib should be recompiled |
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with -std=c++11? Will it break all the other C++ packages in the system? |
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Many thanks in advance, |
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Andrey |