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PR libstdc++/90361 add missing macro definition

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The src/c++17/string-inst.cc file needs to override the default string
ABI so that it still contains the expected symbols even when the library
is configured with --with-default-libstdcxx-abi=gcc4-compatible.

	PR libstdc++/90361
	* src/c++17/string-inst.cc: Use _GLIBCXX_USE_CXX11_ABI=1 by default.

From-SVN: r274314
This commit is contained in:
Jonathan Wakely 2019-08-12 17:41:27 +01:00 committed by Jonathan Wakely
parent e6b2dc248d
commit 0124d2c5bb
2 changed files with 9 additions and 0 deletions
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3
libstdc++-v3/ChangeLog
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@ -1,5 +1,8 @@
2019-08-12 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/90361
* src/c++17/string-inst.cc: Use _GLIBCXX_USE_CXX11_ABI=1 by default.
* include/std/tuple (__unpack_std_tuple): New variable template and
partial specializations.
(apply, make_from_tuple): Add noexcept-specifier.

6
libstdc++-v3/src/c++17/string-inst.cc
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@ -26,6 +26,12 @@
// ISO C++ 14882:2017 24 Strings library
//
#ifndef _GLIBCXX_USE_CXX11_ABI
// Instantiations in this file use the new SSO std::string ABI unless included
// by another file which defines _GLIBCXX_USE_CXX11_ABI=0.
# define _GLIBCXX_USE_CXX11_ABI 1
#endif
#include <string>
namespace std _GLIBCXX_VISIBILITY(default)