[Rcpp-devel] [PATCH] Be more liberal in accepting pre-processor defines for 64-bit HAS_LONG_LONG

[Murray Stokely]

The default llvm/clang compiler on MacOS X 10.8 doesn't get 64-bit support
with Rcpp because compilers.h is specifically looking for -std=c++0x as is
required by some versions of gcc.

This is overly restrictive as e.g. __LP64__ platforms with _LONG_LONG_MAX
set will also certainly have a suitable long long type.

Patch attached or at :

http://www.stokely.org/patches/compiler.int64.diff

      - Murray
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