On 11 May 2023 at 09:02, Martin Maechler wrote:
| I've been told in private that the above "be happy if"
| may *not* be a good idea,
| or rather even close to impossible as cmake seems to not fit
| well, at all, with the quite sophisticated
| autoconf -> configure -> make
| setup we have with building R + recommended packages
| cross-platform compatibly as well as possible.
Yes, my bad -- it _is_ indeed in Writing R Extensions (albeit with an
actual error, see below) so I now use what it recommended (in the form
pointed out by Reed though) so for me it is
sh -> make -> cmake
but could be autoconf too.
I presume the macOS systems needs it for cross-compilation or other dances.
Still annoying as hell. A simple default may be better but I do not know any
of the dragons running around inside macOS.
Dirk
Appendix: Actual Error in Writing R Extensions.
Section 1.2.6 ends on these lines (r-release, and r-devel) I am quoting in full
One way to work around this is for the package’s ‘configure’ script to
include
if test -z "$CMAKE"; then CMAKE="`which cmake`"; fi
if test -z "$CMAKE"; then
CMAKE=/Applications/CMake.app/Contents/bin/cmake; fi
if test -f "$CMAKE"; then echo "no 'cmake' command found"; exit 1; fi
and for the second approach to substitute ‘CMAKE’ into ‘src//Makevars’.
The final 'test -f' has to be negated. Demo:
edd@rob:/tmp$ cat foo.sh
##!/bin/sh
if test -z "$CMAKE"; then CMAKE="`which cmake`"; fi
if test -z "$CMAKE"; then CMAKE=/Applications/CMake.app/Contents/bin/cmake;
fi
if test -f "$CMAKE"; then echo "no 'cmake' command found"; exit 1; fi
echo "** using $CMAKE"
edd@rob:/tmp$ ./foo.sh
no 'cmake' command found
edd@rob:/tmp$ which cmake
/usr/bin/cmake
edd@rob:/tmp$
If I change foo.sh to use '! test -f' all is well
edd@rob:/tmp$ be foo.sh # be is an alias for emacsclient in tty mode
edd@rob:/tmp$ ./foo.sh
** using /usr/bin/cmake
edd@rob:/tmp$
--
dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org
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