[cmake] Have to make sure to pass --whole-archive when dealing with the new libstdlib.a

Otherwise those symbols don't end up getting exported and things
crash if we try to do any inlining, which only happens on the larger
benchmarks or when running in -O mode.

CMakeLists.txt

@@ -141,7 +141,8 @@ add_subdirectory(test/unittests)
 add_subdirectory(tools)
 
 add_executable(pyston $<TARGET_OBJECTS:PYSTON_MAIN_OBJECT> $<TARGET_OBJECTS:PYSTON_OBJECTS> $<TARGET_OBJECTS:FROM_CPYTHON>)
-target_link_libraries(pyston stdlib pthread m readline gmp unwind pypa double-conversion ${LLVM_LIBS} ${LIBLZMA_LIBRARIES})
+# Wrap the stdlib in --whole-archive to force all the symbols to be included and eventually exported
+target_link_libraries(pyston -Wl,--whole-archive stdlib -Wl,--no-whole-archive pthread m readline gmp unwind pypa double-conversion ${LLVM_LIBS} ${LIBLZMA_LIBRARIES})
 
 # copy the python standard library (lib_python/2.7) and src/codegen/parse_ast.py to the build directory
 add_custom_command(TARGET pyston POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy_directory ${CMAKE_SOURCE_DIR}/lib_python/2.7 ${CMAKE_BINARY_DIR}/lib_python/2.7)