Jean-Marc Lasgouttes 67385e69fc Improve detection of C++11 mode
This replaces commit 329eae56 with a better solution. Indeed, while
__cpluplus is useless with g++ 4.[3-6] because its value is always 1,
these compilers define __GXX_EXPERIMENTAL_CXX0X__ when "-std c++0x" is used.

Therefore the code now relies on both macros to detect C++11 mode
instead of setting it when --enable-cxx11 is used.

Also, use pure c++ mode instead of gnu++ extensions on gcc
2015-09-03 10:22:56 +02:00
..
2015-05-06 17:08:56 +02:00
2015-09-03 10:22:56 +02:00
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