Error when installing

[Nullifyrr]

when installing using cmake on arch linux, i get this error
`[sypherrd@inferno binaryen]$ cmake . && make
-- No build type selected, default to Release
-- Building with -fno-omit-frame-pointer
-- Building with -fno-rtti
-- Building with -fPIC
-- Building with -UNDEBUG
-- Building with -DBUILD_LLVM_DWARF
-- Building with -Wall
-- Building with -Werror
-- Building with -Wextra
-- Building with -Wno-unused-parameter
-- Building with -Wno-dangling-pointer
-- Building with -Wno-implicit-int-float-conversion
-- Building with -Wno-unknown-warning-option
-- Building with -Wswitch
-- Building with -Wimplicit-fallthrough
-- Building with -Wnon-virtual-dtor
-- Building libbinaryen as shared library.
-- Linking with -Bsymbolic
-- Configuring done (0.1s)
-- Generating done (0.0s)
-- Build files have been written to: /home/sypherrd/binaryen
[ 18%] Built target llvm_dwarf
[ 19%] Building CXX object CMakeFiles/binaryen.dir/src/passes/Strip.cpp.o
In file included from /usr/include/c++/15.2.1/functional:61,
from /home/sypherrd/binaryen/src/passes/Strip.cpp:22:
In copy constructor ‘std::function<_Res(_ArgTypes ...)>::function(const std::function<_Res(_ArgTypes ...)>&) [with _Res = bool; _ArgTypes = {wasm::CustomSection&}]’,
inlined from ‘wasm::Strip::Strip(Decider)’ at /home/sypherrd/binaryen/src/passes/Strip.cpp:37:28,
inlined from ‘wasm::Pass* wasm::createStripDebugPass()’ at /home/sypherrd/binaryen/src/passes/Strip.cpp:62:4:
/usr/include/c++/15.2.1/bits/std_function.h:393:17: error: ‘’ may be used uninitialized [-Werror=maybe-uninitialized]
393 | __x._M_manager(_M_functor, __x._M_functor, __clone_functor);
| ~~~~^~~~~~~~~~
/usr/include/c++/15.2.1/bits/std_function.h: In function ‘wasm::Pass* wasm::createStripDebugPass()’:
/usr/include/c++/15.2.1/bits/std_function.h:269:7: note: by argument 2 of type ‘const std::_Any_data&’ to ‘static bool std::_Function_handler<_Res(_ArgTypes ...), _Functor>::_M_manager(std::_Any_data&, const std::_Any_data&, std::_Manager_operation) [with _Res = bool; _Functor = wasm::createStripDebugPass()::<lambda(const wasm::CustomSection&)>; _ArgTypes = {wasm::CustomSection&}]’ declared here
269 | _M_manager(_Any_data& __dest, const _Any_data& __source,
| ^~~~~~~~~~
/home/sypherrd/binaryen/src/passes/Strip.cpp:58:20: note: ‘’ declared here
58 | return new Strip([&](const CustomSection& curr) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
59 | return curr.name == BinaryConsts::CustomSections::Name ||
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
60 | curr.name == BinaryConsts::CustomSections::SourceMapUrl ||
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
61 | curr.name.find(".debug") == 0 || curr.name.find("reloc..debug") == 0;
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
62 | });
| ~
In copy constructor ‘std::function<_Res(_ArgTypes ...)>::function(const std::function<_Res(_ArgTypes ...)>&) [with _Res = bool; _ArgTypes = {wasm::CustomSection&}]’,
inlined from ‘wasm::Strip::Strip(Decider)’ at /home/sypherrd/binaryen/src/passes/Strip.cpp:37:28,
inlined from ‘wasm::Pass* wasm::createStripDWARFPass()’ at /home/sypherrd/binaryen/src/passes/Strip.cpp:68:4:
/usr/include/c++/15.2.1/bits/std_function.h:393:17: error: ‘’ may be used uninitialized [-Werror=maybe-uninitialized]
393 | __x._M_manager(_M_functor, __x._M_functor, __clone_functor);
| ~~~~^~~~~~~~~~
/usr/include/c++/15.2.1/bits/std_function.h: In function ‘wasm::Pass* wasm::createStripDWARFPass()’:
/usr/include/c++/15.2.1/bits/std_function.h:269:7: note: by argument 2 of type ‘const std::_Any_data&’ to ‘static bool std::_Function_handler<_Res(_ArgTypes ...), _Functor>::_M_manager(std::_Any_data&, const std::_Any_data&, std::_Manager_operation) [with _Res = bool; _Functor = wasm::createStripDWARFPass()::<lambda(const wasm::CustomSection&)>; _ArgTypes = {wasm::CustomSection&}]’ declared here
269 | _M_manager(_Any_data& __dest, const _Any_data& __source,
| ^~~~~~~~~~
/home/sypherrd/binaryen/src/passes/Strip.cpp:66:20: note: ‘’ declared here
66 | return new Strip([&](const CustomSection& curr) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
67 | return curr.name.find(".debug") == 0 || curr.name.find("reloc..debug") == 0;
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
68 | });
| ~
In copy constructor ‘std::function<_Res(_ArgTypes ...)>::function(const std::function<_Res(_ArgTypes ...)>&) [with _Res = bool; _ArgTypes = {wasm::CustomSection&}]’,
inlined from ‘wasm::Strip::Strip(Decider)’ at /home/sypherrd/binaryen/src/passes/Strip.cpp:37:28,
inlined from ‘wasm::Pass* wasm::createStripProducersPass()’ at /home/sypherrd/binaryen/src/passes/Strip.cpp:74:4:
/usr/include/c++/15.2.1/bits/std_function.h:393:17: error: ‘’ may be used uninitialized [-Werror=maybe-uninitialized]
393 | __x._M_manager(_M_functor, __x._M_functor, __clone_functor);
| ~~~~^~~~~~~~~~
/usr/include/c++/15.2.1/bits/std_function.h: In function ‘wasm::Pass* wasm::createStripProducersPass()’:
/usr/include/c++/15.2.1/bits/std_function.h:269:7: note: by argument 2 of type ‘const std::_Any_data&’ to ‘static bool std::_Function_handler<_Res(_ArgTypes ...), _Functor>::_M_manager(std::_Any_data&, const std::_Any_data&, std::_Manager_operation) [with _Res = bool; _Functor = wasm::createStripProducersPass()::<lambda(const wasm::CustomSection&)>; _ArgTypes = {wasm::CustomSection&}]’ declared here
269 | _M_manager(_Any_data& __dest, const _Any_data& __source,
| ^~~~~~~~~~
/home/sypherrd/binaryen/src/passes/Strip.cpp:72:20: note: ‘’ declared here
72 | return new Strip([&](const CustomSection& curr) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
73 | return curr.name == BinaryConsts::CustomSections::Producers;
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
74 | });
| ~
At global scope:
cc1plus: note: unrecognized command-line option ‘-Wno-unknown-warning-option’ may have been intended to silence earlier diagnostics
cc1plus: note: unrecognized command-line option ‘-Wno-implicit-int-float-conversion’ may have been intended to silence earlier diagnostics
cc1plus: all warnings being treated as errors
make[2]: *** [CMakeFiles/binaryen.dir/build.make:1745: CMakeFiles/binaryen.dir/src/passes/Strip.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:508: CMakeFiles/binaryen.dir/all] Error 2
make: *** [Makefile:136: all] Error 2
[sypherrd@inferno binaryen]$

`

any help would be appreciated, thanks!

[kripken]

We have a few places already where we need to disable that gcc warning, and I guess we might need another place here.

Here is an example:

binaryen/src/ir/metadata.cpp

Line 80 in 07e02d2

#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"

A PR would be welcome as a workaround.

[kripken]

(meanwhile, you can disable warnings-as-errors and/or use an older gcc, to avoid this locally)