One first reaction to your suggestions.

On Mon, 23 May 2005 [EMAIL PROTECTED] wrote:
R-2.1.0 fails to compile on the newest release of FreeBSD, complaining about
undefined references to __builtin_alloca.  On FreeBSD, alloca() is declared in
stdlib.h, not alloca.h as the R sources expect.  Therefore, HAVE_DECL_ALLOCA
does not get set, so the R sources declare alloca() after it has already been
#defined by stdlib.h.

A possible fix is to modify the configure script to look for the declaration of
alloca() in stdlib.h (perhaps after it fails to find it in alloca.h).

It is already supposed to, so it is not finding the declaration there either. If you look up the definition of

AC_CHECK_DECLS([alloca], , , [#include <alloca.h>])

it searches in stdlib.h. Can you please send us the appropriate part of config.log? It may be that this is failing because alloca.h is not found
(but AC_FUNC_ALLOCA is making the same assumptions).

Perhaps the easiest way out is to override the setting on FreeBSD: can you please confirm that manually changing


in config.h works?

Changing "#define HAVE_DECL_ALLOCA" to 1
in line 81 of R-2.1.0/src/include/config.h
gives me the following stopping:

mkdir ../../../../library/grDevices/libs
building package 'graphics'
mkdir ../../../library/graphics
mkdir ../../../library/graphics/R
mkdir ../../../library/graphics/demo
mkdir ../../../library/graphics/po
mkdir ../../../library/graphics/man
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable to load shared library '/usr/local/R-2.1.0/library/grDevices/libs/': /usr/local/R-2.1.0/library/grDevices/libs/ Undefined symbol "__builtin_alloca"
Execution halted
*** Error code 1
Stop in /usr/local/R-2.1.0/src/library/graphics.
*** Error code 1
Stop in /usr/local/R-2.1.0/src/library.
*** Error code 1
Stop in /usr/local/R-2.1.0/src.
*** Error code 1
Stop in /usr/local/R-2.1.0.

Because I have almost no skills in C, automake and autoconf I have no idea on how to go on, sorry.

Hopefully Eric makes considerable progress ...

Dr. Rainer Hurling                           Phone: (049) 551 69401-145
Abteilung Waldschutz, Sachgebiet Insekten    Fax:   (049) 551 69401-160
Niedersächsische Forstliche Versuchsanstalt  Mobil: (049) 160 5835-143
Grätzelstraße 2, D-37079 Göttingen, GERMANY  [EMAIL PROTECTED]

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