next porting question for gcj

DJ Delorie
Sun Apr 15 21:00:00 GMT 2001

A simple test will show you:

  char *b = alloca(500);
  return b[3];

Compile with gcc, and you'll see that alloca is implemented directly,
without function calls.

__builtin_alloca is the internal way gcc implements it; either works
just fine but __builtin_alloca is more immune to being #define'd to
something else.  It's not specific to Cygwin.

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