[gfortran,PATCH] alloca() is undeclared in env.c

[Richard Henderson]

On Wed, Sep 15, 2004 at 04:26:22PM -0700, Steve Kargl wrote:
>  AC_STDC_HEADERS
> -AC_HAVE_HEADERS(stdlib.h stdio.h string.h stddef.h math.h unistd.h)
> +AC_HAVE_HEADERS(alloca.h stdlib.h stdio.h string.h stddef.h math.h unistd.h)

Alloca is much trickier than that.  See AC_FUNC_ALLOCA.
You may want to skip all that and do

#define alloca(x)  __builtin_alloca(x)

in libgfortran, since we know for a fact that we're
building with gcc, and the current version at that.


r~