[Rd] More comments on R-1.2.1 builds (PR#852)

[ripley@stats.ox.ac.uk]

On Sat, 17 Feb 2001 beebe@math.utah.edu wrote:

> On IBM RS/6000 AIX 4.2, I built R-1.2.1 with
>
> % env CC=xlc CXX=xlC F77=f77 FC=f77 ./configure
>
> R is now configured for powerpc-ibm-aix4.2.1.0
>
>   Source directory:          .
>   Installation directory:    /usr/local
>   C compiler:                c89  -g
>   C++ compiler:              xlC  -g
>   FORTRAN compiler:          f77  -g
>
>   X11 support:               yes
>   Gnome support:             no
>   Tcl/Tk support:            yes
>
>   R profiling support:       yes
>   R as a shared library:     no
>
> However, the R-1.2.1 build fails in a number of places:
>
> c89 -I. -I../../src/include -I../../src/include -I/usr/local/include
> -DHAVE_CONFIG_H   -g -c fortran.c -o fortran.o
> "../../src/include/Fortran.h", line 43.9: 1506-213 (S) Macro name abs cannot
> be redefined.
> "../../src/include/Fortran.h", line 43.9: 1506-358 (I) "abs" is defined on
> line 362 of /usr/include/stdlib.h.
>
> I found that putting "#undef abs" before line 43 of Fortran.h solves
> that problem.

That definition is no longer used in the files using that header, and has
been deleted.  It looks like the file fortran.c is redundant too.

> It then dies later in compilation of several routines, of which this
> is typical:
>
> c89 -I. -I../../src/include -I../../src/include -I/usr/local/include
> -DHAVE_CONFIG_H   -g -c devices.c -o devices.o
> "../../src/include/Startup.h", line 48.14: 1506-009 (S) Bit-field R_Quiet
> must be of type signed int, unsigned int or int.
> ...

This seems a mis-placed fit of enthusiasm!  As the designer of that
structure I certainly did not pack it, and there is just one instance of it
per R process.  I have removed the packing, which was added last November,
documented `many more cleanups' from the CVS logs.

(These changes refer to 1.2.2, which is planned for a couple of weeks.)

-- 
Brian D. Ripley,                  ripley@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 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595


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