[do not merge]: build memalloc with debug

ddtrace/profiling/collector/_memalloc_heap.c

@@ -11,6 +11,8 @@
 /*
    How heap profiler sampling works:
 
+   to break build cache
+
    This is mostly derived from
  https://github.com/google/tcmalloc/blob/master/docs/sampling.md#detailed-treatment-of-weighting-weighting
 

setup.py

@@ -873,6 +873,7 @@ def get_exts_for(name):
     else:
         debug_compile_args = []
 
+memalloc_debug_compile_args = ["-g"]
 
 if not IS_PYSTON:
     ext_modules: t.List[t.Union[Extension, Cython.Distutils.Extension, RustExtension]] = [
@@ -886,12 +887,12 @@ def get_exts_for(name):
                 "ddtrace/profiling/collector/_memalloc_heap_map.c",
             ],
             extra_compile_args=(
-                debug_compile_args
+                memalloc_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"])
+                + (["-DNDEBUG"] if not memalloc_debug_compile_args else ["-UNDEBUG"])
                 + ["-D_POSIX_C_SOURCE=200809L", "-std=c11"]
                 + fast_build_args
                 if CURRENT_OS != "Windows"