SmartOS cannot build on master

[targos]

It seems that std::to_string does not exist on this platform ?

I tried to change the std flag to gnu++11 but get the same error:

g++ '-DV8_TARGET_ARCH_IA32' '-D__C99FEATURES__=1' '-DENABLE_DISASSEMBLER' '-DV8_I18N_SUPPORT' '-DICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_STATIC' '-DUCONFIG_NO_SERVICE=1' '-DUCONFIG_NO_REGULAR_EXPRESSIONS=1' '-DU_ENABLE_DYLOAD=0' '-DU_STATIC_IMPLEMENTATION=1' '-DU_HAVE_STD_STRING=0' '-DUCONFIG_NO_BREAK_ITERATION=0' '-DUCONFIG_NO_LEGACY_CONVERSION=1' '-DUCONFIG_NO_CONVERSION=1' -I../deps/v8 -I../. -I/home/iojs/build/workspace/node-test-commit-smartos/nodes/smartos14-32/out/Release/obj/gen -I../deps/v8/include -I../deps/icu-small/source/i18n -I../deps/icu-small/source/common  -Wall -Wextra -Wno-unused-parameter -m32 -pthreads -msse2 -mfpmath=sse -mmmx -fno-strict-aliasing -m32 -O3 -fno-omit-frame-pointer -fno-rtti -fno-exceptions -std=gnu++11 -MMD -MF /home/iojs/build/workspace/node-test-commit-smartos/nodes/smartos14-32/out/Release/.deps//home/iojs/build/workspace/node-test-commit-smartos/nodes/smartos14-32/out/Release/obj.target/v8_base/deps/v8/src/parsing/preparse-data.o.d.raw   -c -o /home/iojs/build/workspace/node-test-commit-smartos/nodes/smartos14-32/out/Release/obj.target/v8_base/deps/v8/src/parsing/preparse-data.o ../deps/v8/src/parsing/preparse-data.cc
In file included from ../deps/v8/src/ast/modules.h:8:0,
                 from ../deps/v8/src/ast/ast.h:10,
                 from ../deps/v8/src/parsing/parser.h:8,
                 from ../deps/v8/src/parsing/parser.cc:5:
../deps/v8/src/parsing/scanner.h: In member function 'void v8::internal::Scanner::LiteralBuffer::AddChar(v8::internal::uc32)':
../deps/v8/src/parsing/scanner.h:372:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if (code_unit <= unibrow::Latin1::kMaxChar) {
                                           ^
../deps/v8/src/parsing/scanner.h:379:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       if (code_unit <= unibrow::Utf16::kMaxNonSurrogateCharCode) {
                                        ^
../deps/v8/src/parsing/parser.cc: In function 'const v8::internal::AstRawString* v8::internal::ClassFieldVariableName(bool, v8::internal::AstValueFactory*, int)':
../deps/v8/src/parsing/parser.cc:3360:25: error: 'to_string' is not a member of 'std'
       ".class-field-" + std::to_string(index) + (is_name ? "-name" : "-func");
                         ^
deps/v8/src/v8_base.target.mk:587: recipe for target '/home/iojs/build/workspace/node-test-commit-smartos/nodes/smartos14-32/out/Release/obj.target/v8_base/deps/v8/src/parsing/parser.o' failed

Build: https://ci.nodejs.org/job/node-test-commit-smartos/4536/nodes=smartos14-32/console
/cc @nodejs/platform-solaris

[misterdjules]

Looking at it.