build: try just passing the heap map C++ file to the extension build

Author: nsrip-dd

setup.py

@@ -608,23 +608,6 @@ def get_exts_for(name):
 
 extra_libraries = []
 if not IS_PYSTON:
-    # To make it easier to mix C and C++ for the memalloc extension,
-    # we build the C++ part as a separate static library and link it into the extension.
-    if CURRENT_OS != "Windows":
-        # Shot in the dark, but try setting the archiver explicitly
-        # here so that it can be resolved via the PATH at runtime?
-        # Just in case the sysconfig for the Python interpreter points
-        # to a weird archiver installation...
-        os.environ["AR"] = "ar"
-    memalloc_map_lib = (
-        "memalloc_map",
-        {
-            "sources": ["ddtrace/profiling/collector/_memalloc_heap_map.cpp"],
-            "include_dirs": [get_python_inc()],
-            "cflags": (debug_compile_args + (["-std=c++17"] if CURRENT_OS != "Windows" else ["/std:c++17"])),
-        },
-    )
-    extra_libraries.append(memalloc_map_lib)
     ext_modules = [
         Extension(
             "ddtrace.profiling.collector._memalloc",
@@ -633,17 +616,17 @@ def get_exts_for(name):
                 "ddtrace/profiling/collector/_memalloc_tb.c",
                 "ddtrace/profiling/collector/_memalloc_heap.c",
                 "ddtrace/profiling/collector/_memalloc_reentrant.c",
+                "ddtrace/profiling/collector/_memalloc_heap_map.cpp",
             ],
             depends=["ddtrace/profiling/collector/_memalloc_heap_map.h"],
-            libraries=["memalloc_map"] + (["stdc++"] if CURRENT_OS != "Windows" else [])
             extra_compile_args=(
                 debug_compile_args
                 # If NDEBUG is set, assert statements are compiled out. Make
                 # sure we explicitly set this for normal builds, and explicitly
                 # _unset_ it for debug builds in case the CFLAGS from sysconfig
                 # include -DNDEBUG
                 + (["-DNDEBUG"] if not debug_compile_args else ["-UNDEBUG"])
-                + ["-D_POSIX_C_SOURCE=200809L", "-std=c11"]
+                + ["-D_POSIX_C_SOURCE=200809L"]
                 + fast_build_args
                 if CURRENT_OS != "Windows"
                 else ["/std:c11"]