Merge #28802: rethinkdb: fix build with gcc6

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pkgs/servers/nosql/rethinkdb/default.nix
··· 12 12 sha256 = "0a6wlgqa2flf87jrp4fq4y9aihwyhgwclmss56z03b8hd5k5j8f4"; 13 13 }; 14 14 15 + patches = [ 16 + (fetchurl { 17 + url = "https://github.com/rethinkdb/rethinkdb/commit/871bd3705a1f29c4ab07a096d562a4b06231a97c.patch"; 18 + sha256 = "05nagixlwnq3x7441fhll5vs70pxppbsciw8qjqp660bdb5m4jm1"; 19 + }) 20 + ]; 21 + 15 22 postPatch = stdenv.lib.optionalString stdenv.isDarwin '' 16 23 sed -i 's/raise.*No Xcode or CLT version detected.*/version = "7.0.0"/' external/v8_3.30.33.16/build/gyp/pylib/gyp/xcode_emulation.py 17 24