Dear All,
Currently I am testing whether my package xps can be compiled on the Mac
with clang, and indeed everything is fine.
However, when I create ~/.R/Makevars to set CC and CXX as described in:
http://cran.r-project.org/doc/manuals/r-patched/R-admin.html#OS-X-packages
then the header files of the external framework that I use are no longer
found.
Since my package depends on the external C++ framework, I had to create
my own 'configure.in' and 'Makefile' which checks e.g. for the presence
of the variable ROOTSYS containing the path to the framework.
Trying to follow the example:
http://cran.r-project.org/doc/manuals/r-patched/R-exts.html#Configure-example
I added following lines to my configure.in file:
: ${R_HOME=`R RHOME`}
if test -z "${R_HOME}"; then
echo "could not determine R_HOME"
exit 1
fi
CC=`"${R_HOME}/bin/R" CMD config CC`
CFLAGS=`"${R_HOME}/bin/R" CMD config CFLAGS`
CPPFLAGS=`"${R_HOME}/bin/R" CMD config CPPFLAGS`
AC_LANG(C++)
AC_PROG_CPP
AC_PROG_CC
ROOT_CPPFLAGS="-I. -I${ROOTSYS}/include"
CPPFLAGS="${CPPFLAGS} ${ROOT_CPPFLAGS}"
However, this did not help, the header files are still not found.
Can someone tell me what I need to do so that the external header files
are found, or does ~/.R/Makevars overwrite everything?
Best regards,
Christian
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V.i.e.n.n.a A.u.s.t.r.i.a
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