math/openfst-vosk: fix build with clang and libc++ 19
With clang and libc++ 19 math/openfst-vosk fails to compile, with errors
similar to:
./../include/fst/fst.h:704:15: error: no viable overloaded '='
704 | isymbols_ = impl.isymbols_ ? impl.isymbols_->Copy() : nullptr;
| ~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/v1/__memory/unique_ptr.h:231:67: note: candidate function not viable: no known conversion from 'SymbolTable *' to 'unique_ptr<SymbolTable>' for 1st argument
231 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unique_ptr& operator=(unique_ptr&& __u) _NOEXCEPT {
| ^ ~~~~~~~~~~~~~~~~
/usr/include/c++/v1/__memory/unique_ptr.h:241:67: note: candidate template ignored: could not match 'unique_ptr<_Up, _Ep>' against 'SymbolTable *'
241 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unique_ptr& operator=(unique_ptr<_Up, _Ep>&& __u) _NOEXCEPT {
| ^
/usr/include/c++/v1/__memory/unique_ptr.h:263:67: note: candidate function not viable: no known conversion from 'SymbolTable *' to 'nullptr_t' (aka 'std::nullptr_t') for 1st argument
263 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unique_ptr& operator=(nullptr_t) _NOEXCEPT {
| ^ ~~~~~~~~~
/usr/include/c++/v1/__memory/unique_ptr.h:138:59: note: candidate function (the implicit copy assignment operator) not viable: no known conversion from 'SymbolTable *' to 'const unique_ptr<SymbolTable>' for 1st argument
138 | class _LIBCPP_UNIQUE_PTR_TRIVIAL_ABI _LIBCPP_TEMPLATE_VIS unique_ptr {
| ^~~~~~~~~~and:
./../include/fst/bi-table.h:330:25: error: no member named 's_' in 'VectorHashBiTable<I, T, S, FP, H, HS>'
330 | : selector_(table.s_),
| ~~~~~ ^The first error can be fixed by using std::unique_ptr<>::reset instead
of the assignment operator. The second error can be fixed by using the
correct class member, selector_.
PR: 282513
Approved by: yuri (maintainer)
MFH: 2024Q3
(cherry picked from commit e8b22e75d75924f1f6567044252abe2a3d60078e)