First thanks for all the insight.

That maybe a solution, but not through the preprocessor (code yet untested) 

// private external C library with one function
#include <stdlib.h>
void crt_free(void*p) {
    free(p);
}

[download]
link with this and call crt_free() instead of free().

And it came to pass that in time the Great God Om spake unto Brutha, the Chosen One: "Psst!"
(Terry Pratchett, Small Gods)

In reply to Re^5: XS malloc and free (whose) by Brutha
in thread XS malloc and free by Brutha

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