procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

libstdc++: Fix --with-default-libstdcxx-abi=gcc4-compatible build

Browse source 
When building src/c++20/tzdb.cc we currently get a build error for
--with-default-libstdcxx-abi=gcc4-compatible because std::chrono::tzdb
and related types are not declared for the gcc4-compatible ABI (unless
--disable-libstdcxx-dual-abi is also used, so that the gcc4-compatible
ABI is the only one built).

Define _GLIBCXX_USE_CXX11_ABI in tzdb.cc so that for a dual-abi build we
always build it for the cxx11 ABI.

libstdc++-v3/ChangeLog:

	* src/c++20/tzdb.cc (_GLIBCXX_USE_CXX11_ABI): Define to 1.
This commit is contained in:
Jonathan Wakely 2023-01-16 15:52:20 +00:00
parent b22634281f
commit d694a3d575
1 changed files with 3 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
libstdc++-v3/src/c++20/tzdb.cc
View file

@ -25,6 +25,9 @@
// The -Wabi warnings in this file are all for non-exported symbols.
#pragma GCC diagnostic ignored "-Wabi"
// In the usual dual-abi build, std::chrono::tzdb is only defined for cxx11.
#define _GLIBCXX_USE_CXX11_ABI 1
#include <chrono>
#include <fstream> // ifstream
#include <sstream> // istringstream