git: a3a88aa13260 - main - Fix buildworld with gcc 13 after llvm-19 import
- Go to: [ bottom of page ] [ top of archives ] [ this month ]
Date: Thu, 24 Oct 2024 22:09:52 UTC
The branch main has been updated by dim:
URL: https://cgit.FreeBSD.org/src/commit/?id=a3a88aa132605c5d42153a419c0e129296dec467
commit a3a88aa132605c5d42153a419c0e129296dec467
Author: Dimitry Andric <dim@FreeBSD.org>
AuthorDate: 2024-10-24 21:42:36 +0000
Commit: Dimitry Andric <dim@FreeBSD.org>
CommitDate: 2024-10-24 22:09:33 +0000
Fix buildworld with gcc 13 after llvm-19 import
It turns out the new libc++ 19 headers result in a -Werror warning from
gcc 13:
In file included from /usr/obj/usr/src/freebsd/src/amd64.amd64/tmp/usr/include/c++/v1/__memory/shared_ptr.h:31:
/usr/obj/usr/src/freebsd/src/amd64.amd64/tmp/usr/include/c++/v1/__memory/uninitialized_algorithms.h: In instantiation of 'constexpr void std::__1::__uninitialized_allocator_relocate(_Alloc&, _Tp*, _Tp*, _Tp*) [with _Alloc = allocator<basic_string<char> >; _Tp = basic_string<char>]':
/usr/obj/usr/src/freebsd/src/amd64.amd64/tmp/usr/include/c++/v1/vector:1052:42: required from 'void std::__1::vector<_Tp, _Alloc>::__swap_out_circular_buffer(std::__1::__split_buffer<_Tp, _Allocator&>&) [with _Tp = std::__1::basic_string<char>; _Allocator = std::__1::allocator<std::__1::basic_string<char> >]'
/usr/obj/usr/src/freebsd/src/amd64.amd64/tmp/usr/include/c++/v1/vector:1469:31: required from 'void std::__1::vector<_Tp, _Alloc>::reserve(size_type) [with _Tp = std::__1::basic_string<char>; _Allocator = std::__1::allocator<std::__1::basic_string<char> >; size_type = long unsigned int]'
/usr/src/freebsd/src/contrib/googletest/googletest/src/gtest.cc:795:27: required from here
/usr/obj/usr/src/freebsd/src/amd64.amd64/tmp/usr/include/c++/v1/__memory/uninitialized_algorithms.h:645:21: error: 'void* __builtin_memcpy(void*, const void*, long unsigned int)' writing to an object of type 'std::__1::__remove_const_t<std::__1::basic_string<char> >' {aka 'class std::__1::basic_string<char>'} with no trivial copy-assignment; use copy-assignment or copy-initialization instead o[-Werror=class-memaccess]
645 | __builtin_memcpy(const_cast<__remove_const_t<_Tp>*>(__result), __first, sizeof(_Tp) * (__last - __first));
| ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/obj/usr/src/freebsd/src/amd64.amd64/tmp/usr/include/c++/v1/__system_error/error_category.h:15,
from /usr/obj/usr/src/freebsd/src/amd64.amd64/tmp/usr/include/c++/v1/__system_error/error_code.h:18,
from /usr/obj/usr/src/freebsd/src/amd64.amd64/tmp/usr/include/c++/v1/__ostream/basic_ostream.h:16:
/usr/obj/usr/src/freebsd/src/amd64.amd64/tmp/usr/include/c++/v1/string:752:7: note: 'std::__1::__remove_const_t<std::__1::basic_string<char> >' {aka 'class std::__1::basic_string<char>'} declared here
752 | class basic_string {
| ^~~~~~~~~~~~
Since this is all benign, turn off errors for -Wclass-memaccess.
PR: 280562
MFC after: 3 days
---
share/mk/bsd.sys.mk | 1 +
1 file changed, 1 insertion(+)
diff --git a/share/mk/bsd.sys.mk b/share/mk/bsd.sys.mk
index 1934a79a5427..63774e857167 100644
--- a/share/mk/bsd.sys.mk
+++ b/share/mk/bsd.sys.mk
@@ -221,6 +221,7 @@ CWARNFLAGS+= -Wno-error=aggressive-loop-optimizations \
-Wno-error=restrict \
-Wno-error=sizeof-pointer-memaccess \
-Wno-error=stringop-truncation
+CXXWARNFLAGS+= -Wno-error=class-memaccess
.endif
# GCC 9.2.0