boost 1.8.1 beta1+gcc-12: multiple definition of `boost::phoenix::placeholders::uarg1'

[sgn]

Hi,

I tried to recompile freeorion v0.4.10.2 with boost 1.81.0.beta1. The linking step run into this problem (stripped duplicated (in meaning) errors):

/usr/bin/ld: CMakeFiles/freeorionparseobj.dir/parse/VisibilityValueRefParser.cpp.o:(.bss+0x12): multiple definition of `boost::phoenix::placeholders::uarg1'; CMakeFiles/freeorionparseobj.dir/parse/ArithmeticRules.cpp.o:(.bss+0x12): first defined here

It seems like the boost::phoenix::placeholders::uarg1 (and friends) is allocated in bss in all translation unit that include boost/phoenix.hpp

Is it intended?

fwiw, the same code can be linked with gcc 10 and boost 1.80

[djowel]

There are no such changes AFAIK. Could you be more specific and point to the code or commit where the failure started using git bisect?

[Kojoley]

There are no such changes AFAIK. Could you be more specific and point to the code or commit where the failure started using git bisect?

There was, it is #104 that added uarg* placeholders, I don't see them useful though.

boost-1.80.0...boost-1.81.0.beta1

[sgn]

Yes, revert #104 fixes the build

[djowel]

Please file a PR that reverts this. That way we can notify the author of the change as well.

[sgn]

See #112

[killerbot242]

I can confirm this issue is also present in the official release of 1.81 and as such breaks our codebase .
What's the way to resolution ?

[sgn]

@killerbot242 Either applying the patch in #112 or below patch:

See https://github.com/boostorg/phoenix/issues/111
Index: boost-1.81.0.beta1/boost/phoenix/stl.hpp
===================================================================
--- boost-1.81.0.beta1.orig/boost/phoenix/stl.hpp
+++ boost-1.81.0.beta1/boost/phoenix/stl.hpp
@@ -11,6 +11,5 @@
 
 #include <boost/phoenix/stl/algorithm.hpp>
 #include <boost/phoenix/stl/container.hpp>
-#include <boost/phoenix/stl/tuple.hpp>
 
 #endif

[sgn]

Or you can -DBOOST_PHOENIX_STL_TUPLE_H_ to avoid the inclusion of boost/phoenix/stl/tuple.hpp