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Add CRYPTOPP_NO_CXX11 for fake C++11 standard libraries (GH #529) 

This is a recurring problem, especially on MinGW and platforms that use STLport. See the bug report for some references
pull/531/head
Jeffrey Walton 2017-11-06 09:09:45 -05:00
parent f40afed631
commit e4cef84883
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1 changed files with 16 additions and 3 deletions
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19
config.h
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@ -54,9 +54,19 @@
# endif
#endif
// Define CRYPTOPP_NO_CXX11 to avoid C++11 related features shown at the
// end of this file. Some compilers and standard C++ headers advertise C++11
// but they are really just C++03 with some additional C++11 headers and
// non-conforming classes. You might also consider `-std=c++03` or
// `-std=gnu++03`, but they are required options when building the library
// and all programs. CRYPTOPP_NO_CXX11 is probably easier to manage but it may
// cause -Wterminate warnings under GCC. MSVC++ has a similar warning.
// Also see https://github.com/weidai11/cryptopp/issues/529
// #define CRYPTOPP_NO_CXX11 1
// Define this to allow unaligned data access. If you experience a break with
// GCC at -O3, you should immediately suspect unaligned data accesses.
// #define CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS
// #define CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS 1
// ***************** Less Important Settings ***************
@ -895,8 +905,11 @@ NAMESPACE_END
// Intel and C++11 language features, http://software.intel.com/en-us/articles/c0x-features-supported-by-intel-c-compiler
// GCC and C++11 language features, http://gcc.gnu.org/projects/cxx0x.html
// Clang and C++11 language features, http://clang.llvm.org/cxx_status.html
#if ((_MSC_VER >= 1600) || (__cplusplus >= 201103L)) && !defined(_STLPORT_VERSION)
# define CRYPTOPP_CXX11 1
#if !defined(CRYPTOPP_NO_CXX11)
# if ((_MSC_VER >= 1600) || (__cplusplus >= 201103L)) && !defined(_STLPORT_VERSION)
# define CRYPTOPP_CXX11 1
# endif
#endif
// Hack ahead. Apple's standard library does not have C++'s unique_ptr in C++11. We can't