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MALLOC_OPTIONS doesn't work on dyn linked executables ?

  It looks like MALLOC_OPTIONS doesn't work on dynamically linked executables.
  But it works on statically compiled ones.

  See :

#include <stdlib.h>
#include <stdio.h>
int main(void)
	unsigned long *a = malloc(42);
	printf("%lx\n", *a);	
	return 0;

$ cc -o a a.c && env MALLOC_OPTIONS=J ./a
$ cc -static -o a a.c && env MALLOC_OPTIONS=J ./a

  Maybe this is the expected behavior, but a small note about this in
malloc(3) would be nice.

  Best regards,

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