[R] cross compiling R for Windows under Linux

[Lars Schouw]

Professor Ripley

I am very hourned to use R after all your hard work.

It looks as if I can't see the paths
/users/ripley/mingw even though I have set the HEADER
correct.

POINT:
I tried to include the missing header file float.h
from dynload.c directly. It can't see the file!!!

Is looks as if I have to run confgure myself again to
set the --prefix correct.

Whan I added --verbose to the make flags I get this:

i586-mingw32-gcc -isystem
/home/schouwl/unpack/mingw/include --verbose -O2 -Wall
-pedantic -I../include -I. -DHAVE_CONFIG_H
-DR_DLL_BUILD  -c dynload.c -o dynload.o
Reading specs from
/export/home/schouwl/unpack/mingw/bin/../lib/gcc/i586-mingw32/3.4.2/specs
Configured with: ../configure
--prefix=/users/ripley/mingw --target=i586-mingw32
--enable-threads --enable-hash-synchronization
--disable-nls
Thread model: win32
gcc version 3.4.2 (mingw-special)

/export/home/schouwl/unpack/mingw/bin/../libexec/gcc/i586-mingw32/3.4.2/cc1
-quiet -v -I../include -I. -iprefix
/export/home/schouwl/unpack/mingw/bin/../lib/gcc/i586-mingw32/3.4.2/
-DHAVE_CONFIG_H -DR_DLL_BUILD -isystem
/home/schouwl/unpack/mingw/include dynload.c -quiet
-dumpbase dynload.c -mtune=pentium -auxbase-strip
dynload.o -O2 -Wall -pedantic -version -o
/tmp/ccGf2Nz4.s
ignoring nonexistent directory
"/export/home/schouwl/unpack/mingw/bin/../lib/gcc/i586-mingw32/3.4.2/../../../../i586-mingw32/sys-include"
ignoring nonexistent directory
"/users/ripley/mingw/lib/gcc/i586-mingw32/3.4.2/include"
ignoring nonexistent directory
"/users/ripley/mingw/i586-mingw32/sys-include"
ignoring nonexistent directory
"/users/ripley/mingw/i586-mingw32/include"
#include "..." search starts here:
#include <...> search starts here:
 ../include
 .
 /home/schouwl/unpack/mingw/include

/export/home/schouwl/unpack/mingw/bin/../lib/gcc/i586-mingw32/3.4.2/include

/export/home/schouwl/unpack/mingw/bin/../lib/gcc/i586-mingw32/3.4.2/../../../../i586-mingw32/include
End of search list.
GNU C version 3.4.2 (mingw-special) (i586-mingw32)
        compiled by GNU C version 3.4.2.
GGC heuristics: --param ggc-min-expand=100 --param
ggc-min-heapsize=131072
dynload.c: In function `R_loadLibrary':
dynload.c:97: warning: implicit declaration of
function `_controlfp'
dynload.c:97: error: `_MCW_IC' undeclared (first use
in this function)
dynload.c:97: error: (Each undeclared identifier is
reported only once
dynload.c:97: error: for each function it appears in.)
dynload.c:98: warning: implicit declaration of
function `_clearfp'
dynload.c:102: error: `_MCW_EM' undeclared (first use
in this function)
dynload.c:102: error: `_MCW_RC' undeclared (first use
in this function)
dynload.c:102: error: `_MCW_PC' undeclared (first use
in this function)
make[3]: *** [dynload.o] Error 1
make[2]: *** [../../bin/R.dll] Error 2
make[1]: *** [rbuild] Error 2
make: *** [all] Error 2

I then tried to have the sysadm create a soft link
from  /users/ripley/mingw to
/export/home/schouwl/unpack/mingw
It did also not help.

Regards
Lars Schouw

--- Prof Brian Ripley <ripley at stats.ox.ac.uk> wrote:
> *If* you really have the header paths set correctly
> it does work, and has 
> been tested by several people.
> 
> Do read MkRules more carefully and think about how
> your setting differs 
> from the example given.  You have *not* as you claim
> 
> # Set this to where the mingw32 include files are.
> It must be accurate.
>
HEADER=/users/ripley/R/cross-tools4/i586-mingw32/include
> 
> if you used my cross-compiler build (and gave no
> credit).  Hint: float.h 
> is a `mingw32 include file'.
> 
> As the comment says, user error here is disastrous,
> so please take the 
> hint.
> 
> On Thu, 14 Apr 2005, Lars Schouw wrote:
> 
> > Hi
> >
> > I tried to cross compile R under Linux but get an
> > error.
> >
> > i586-mingw32-gcc -isystem
> > /home/schouwl/unpack/mingw/include -O2 -Wall
> -pedantic
> > -I../include -I. -DHAVE_CONFIG_H -DR_DLL_BUILD  -c
> > dynload.c -o dynload.o
> > dynload.c: In function `R_loadLibrary':
> > dynload.c:94: warning: implicit declaration of
> > function `_controlfp'
> > dynload.c:94: error: `_MCW_IC' undeclared (first
> use
> > in this function)
> > dynload.c:94: error: (Each undeclared identifier
> is
> > reported only once
> > dynload.c:94: error: for each function it appears
> in.)
> > dynload.c:95: warning: implicit declaration of
> > function `_clearfp'
> > dynload.c:99: error: `_MCW_EM' undeclared (first
> use
> > in this function)
> > dynload.c:99: error: `_MCW_RC' undeclared (first
> use
> > in this function)
> > dynload.c:99: error: `_MCW_PC' undeclared (first
> use
> > in this function)
> > make[3]: *** [dynload.o] Error 1
> > make[2]: *** [../../bin/R.dll] Error 2
> > make[1]: *** [rbuild] Error 2
> > make: *** [all] Error 2
> >
> >
> > This is the that was reported in the mailing list
> > before.
> >
>
http://tolstoy.newcastle.edu.au/R/devel/04/12/1571.html
> >
> > I have set the HEADER correct in MkRules
> 
> No, you did not.
> 
> > HEADER=/home/schouwl/unpack/mingw/include
> > The file float.h is located in the
> > ../i586-mingw32/include/float.h
> > from there.
> >
> > I am cross compiling R 2.0.1 source code.
> >
> > Help would be appreciated..
> 
> 
> -- 
> Brian D. Ripley,                 
> ripley at stats.ox.ac.uk
> Professor of Applied Statistics, 
> http://www.stats.ox.ac.uk/~ripley/
> University of Oxford,             Tel:  +44 1865
> 272861 (self)
> 1 South Parks Road,                     +44 1865
> 272866 (PA)
> Oxford OX1 3TG, UK                Fax:  +44 1865
> 272595
>