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Date:	Sun, 15 Apr 2012 16:07:32 +0200
From:	marco atzeri <marco DOT atzeri AT gmail DOT com>
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To:	cygwin AT cygwin DOT com
Subject:	Re: R-2.14.2-1 and knitr-0.4 package (W7)
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On 4/14/2012 7:25 PM, Dario Buttari wrote:
> Hello, I am using R 2.14.2-1 under cygwin 1.7.12-1 in Windows 7
> Professional Service Pack 1.
> I am trying to install the knitr 0.4 package under R 2.14.2-1, and the
> installation fails while installing the Rcpp 0.9.10 dependency.
> The problem seems related to the missing execinfo.h (see code below).
> Based on this webpage execinfo.h is not supported under cygwin and
> several other platforms:
> <http://www.gnu.org/savannah-checkouts/gnu/gnulib/manual/html_node/execinfo_002eh.html>
>
> Do you have any recommendation on how to go around this problem or
> where to post this issue?
> Thanks,
> Dario
>
> >
> * installing *source* package ‘Rcpp’ ...
> ** package ‘Rcpp’ successfully unpacked and MD5 sums checked
> ** libs

> > g++ -I/usr/lib/R/include -I../inst/include/       -g -O2 -pipe  -c
> debugging.cpp -o debugging.o
> debugging.cpp:36:22: fatal error: execinfo.h: No such file or directory
> compilation terminated.
> /usr/lib/R/etc/Makeconf:129: recipe for target `debugging.o' failed

on Rcpp_0.9.10.tar.gz
you need to exclude cygwin from platform having execinfo.h.

----------------------------------------------------------------------
--- src/debugging.cpp_bk        2012-04-15 16:04:11.104213600 +0200
+++ src/debugging.cpp   2012-04-15 16:04:59.454979200 +0200
@@ -22,7 +22,7 @@
  #include <Rcpp.h>

  #if defined(__GNUC__)
-#if defined(WIN32) || defined(__FreeBSD__) || defined(__NetBSD__) || 
defined(__OpenBSD__)
+#if defined(WIN32) || defined(__FreeBSD__) || defined(__NetBSD__) || 
defined(__OpenBSD__) ||defined(__CYGWIN__)
  // Simpler version for Windows and *BSD
  SEXP stack_trace( const char* file, int line ){
      Rcpp::List trace = Rcpp::List::create(
------------------------------------------------------------------------



Regards
Marco

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