! PCRE_EXP_DECL pcre *pcre_compile(const char *, int, const char **, int *,
!                   const unsigned char *);
FUNCTION: pcre* pcre_compile
    ( c-string pattern,
      int options,
      c-string* errptr,
      int* erroffset,
      uchar* tableptr ) ;

: pcre-compile ( pat opt errp erro tablep -- pcre* )
    pointer: pcre "libpcre" "pcre_compile"
    { c-string
      int
      pointer: c-string
      pointer: int
      pointer: uchar }
    alien-invoke ;

Now how do I write this?:

PCRE_EXP_DECL void *(*pcre_malloc)(size_t);