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| author | fanquake <fanquake@gmail.com> | 2022-06-21 10:44:40 +0100 |
|---|---|---|
| committer | fanquake <fanquake@gmail.com> | 2022-06-23 17:29:37 +0100 |
| commit | 880d4aaf81f3d5d7fbb915905c2e61b816a6a747 (patch) | |
| tree | 910fcf6b2809ab6976efdcf4a632d0620163c027 /configure.ac | |
| parent | 1bdbbbdc46c4e50bf07bc362e7e391ea1a53ea2f (diff) | |
| download | bitcoin-880d4aaf81f3d5d7fbb915905c2e61b816a6a747.tar.xz | |
build: use BOOST_NO_CXX98_FUNCTION_BASE to suppress warnings
Boost conatiner_hash (included via functional -> multi_index) uses
std::unary_function, which was deprecated in C++11, and "removed" in
C++17. It's use causes wanrings with newer compilers, i.e GCC 12.1.
```bash
/bitcoin/depends/aarch64-unknown-linux-gnu/include/boost/container_hash/hash.hpp:131:33:
warning: 'template<class _Arg, class _Result> struct std::unary_function' is deprecated [-Wdeprecated-declarations]
131 | struct hash_base : std::unary_function<T, std::size_t> {};
| ^~~~~~~~~~~~~~
In file included from /usr/include/c++/12/bits/unique_ptr.h:37,
from /usr/include/c++/12/memory:76,
from ./init.h:10,
from init.cpp:10:
/usr/include/c++/12/bits/stl_function.h:117:12: note: declared here
117 | struct unary_function
```
Use the MACRO outlined in
https://github.com/boostorg/container_hash/issues/22, to prevent it's
use.
BOOST_NO_CXX98_FUNCTION_BASE:
> The standard library no longer supports std::unary_function and std::binary_function.
> They were deprecated in C++11 and is removed from C++14.
See:
https://github.com/boostorg/config/pull/430
https://en.cppreference.com/w/cpp/utility/functional/unary_function
https://www.boost.org/doc/libs/master/libs/config/doc/html/boost_config/boost_macro_reference.html
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 682923096d..0e1968f5c4 100644 --- a/configure.ac +++ b/configure.ac @@ -1461,6 +1461,11 @@ if test "$use_boost" = "yes"; then dnl we don't use multi_index serialization BOOST_CPPFLAGS="$BOOST_CPPFLAGS -DBOOST_MULTI_INDEX_DISABLE_SERIALIZATION" + dnl Prevent use of std::unary_function, which was removed in C++17, + dnl and will generate warnings with newer compilers. + dnl See: https://github.com/boostorg/container_hash/issues/22. + BOOST_CPPFLAGS="$BOOST_CPPFLAGS -DBOOST_NO_CXX98_FUNCTION_BASE" + if test "$enable_debug" = "yes" || test "$enable_fuzz" = "yes"; then BOOST_CPPFLAGS="$BOOST_CPPFLAGS -DBOOST_MULTI_INDEX_ENABLE_SAFE_MODE" fi |