Hi Sam,
Thanks for your reply. The Debug error message disappeared, big thanks for
this!
The ambiguous error message looks like this:
The code section:
Face *clone(const vertex_t *old_base, vertex_t *new_base, std::unordered_map
<const edge_t *, edge_t *> &edge_map) const;
This is from Carve.
The full error message is this:
In file included from
/mnt/c/Works/Dev/wasm/3rdParty/Carve/src/convex_hull.cpp:22:
In file included from
/mnt/c/Works/Dev/wasm/3rdParty/Carve/include/carve/csg.hpp:28:
/mnt/c/Works/Dev/wasm/3rdParty/Carve/include/carve/mesh.hpp:412:70: error:
reference to 'unordered_map' is ambiguous
Face *clone(const vertex_t *old_base, vertex_t *new_base,
std::unordered_map<const edge_t *, edge_t *> &edge_map) const;
^
/mnt/c/Works/Dev/emsdk/upstream/emscripten/cache/sysroot/include/c++/v1/unordered_map:1028:28:
note: candidate found by name lookup is 'std::__2::unordered_map'
class _LIBCPP_TEMPLATE_VIS unordered_map
^
/mnt/c/Works/Dev/wasm/3rdParty/Carve/include/carve/collection/unordered/fallback_impl.hpp:26:9:
note: candidate found by name lookup is 'std::unordered_map'
class unordered_map : public std::map<K, T> {
^
'Sam Clegg' via emscripten-discuss <emscripten-discuss@googlegroups.com>
ezt írta (időpont: 2023. febr. 9., Cs, 18:31):
>
>
> On Thu, Feb 9, 2023 at 7:27 AM Tibor Kovács <tiberiusfa...@gmail.com>
> wrote:
>
>> Hi all,
>>
>> I have several problems with the 3.1.31 compiler. I made a CMake for a
>> project and with the 3.1.13 it compiled properly. Now I updated to 3.1.31
>> and it doesn't work anymore. I try to compile it in Debug mode with the
>> next DEBUG definitions (this is a static library):
>>
>> set(DEBUG_DEFINITIONS
>> _LIBCPP_DEBUG=1
>> _DEBUG
>> CMAKE_BUILD
>> )
>>
>> and the DEBUG_DEFINITIONS are added like this:
>>
>> target_compile_definitions(${LIBRARY_NAME}
>> PRIVATE
>> "$<$<CONFIG:DEBUG>:${DEBUG_DEFINITIONS}>"
>> )
>>
>> Previously it worked but now I have this error message:
>>
>> /mnt/c/Works/Dev/emsdk/upstream/emscripten/cache/sysroot/include/c++/v1/__debug:24:5:
>> error: "Enabling the debug mode now requires having configured the library
>> with support for the debug mode"
>> # error "Enabling the debug mode now requires having configured the
>> library with support for the debug mode"
>> ^
>> 1 error generated.
>>
>
> That looks like libc++ is warning you that you are using a legacy macro:
>
> // Catch invalid uses of the legacy _LIBCPP_DEBUG toggle.
>
> #if defined(_LIBCPP_DEBUG) && _LIBCPP_DEBUG != 0 &&
> !defined(_LIBCPP_ENABLE_DEBUG_MODE)
> # error "Enabling the debug mode now requires having configured the
> library with support for the debug mode"
> #endif
>
> It looks like you are expected to define _LIBCPP_ENABLE_DEBUG_MODE. I'm
> not sure what either of those macros do, but they are not specific to
> emscripten, and apply to libc++ in general.
>
>>
>>
>>
>> It doesn't stop here. If I compile it in Release mode, I'll have this
>> error messages: error: reference to 'unordered_map' is ambiguous. AFAIK
>> this error message would be generated if the compiler doesn't know the C++
>> version. But I specified it like this:
>>
>> target_compile_options(${LIBRARY_NAME}
>> PRIVATE
>> -std=c++2a
>> -fwasm-exceptions
>> -pthread
>> )
>>
>> What could be the solution for these errors?
>> Thank you in advance the helps.
>>
>>
> Can you share the full error message? And even better a piece of sample
> code that generates it? I imagine this is another generic libc++ issue
> and not emscripten-specific.
>
> cheers,
> sam
>
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