What system is this? It should work under gcc-3.3.4, as the issue is visibility attributes and they are not supposed to be supported on that compiler. (I suspect from the message that this is not a version of gcc released by GNU, a common source of problems.) I happen to have an i686 FC3 system with a gcc 3.3.5 compiled from the GNU sources (to help track down a bug in code generated by that compiler), and that does work in tests/Embedding.
In src/main/context.c you will find context.c:Rboolean attribute_hidden R_ToplevelExec(void (*fun)(void *), void *data) and you need to remove 'attribute_hidden' and recompile. (There is a known problem here with gcc >= 4.0.0, with this fix in the pre-2.3.1 sources. We know that certain RedHat systems have gcc3's that support visibility, not always completely.) On Thu, 25 May 2006, George Ostrouchov wrote: > I am compiling the Embedding examples in the tests directory and get an > undefined reference. I include the make output as well as grep'd output > of nm on libR.so and compiler and arch information. Do I have an > improperly built R shared library or is there a problem with the > Embedding tests or something else I am not seeing? > > Thanks for any help! > George > > > [EMAIL PROTECTED]:/data5/ost/R/R-2.3.0/tests/Embedding> make > ../../bin/R CMD LINK gcc -o Rtest Rtest.o embeddedRCall.o -L`cd ../.. && > /bin/pwd`/lib -lR > gcc -o Rtest Rtest.o embeddedRCall.o > -L/autofs/tewa_data5/ost/R/R-2.3.0/lib -lR -Wl,--rpath > -Wl,/data5/ost/R/R-2.3.0/lib > embeddedRCall.o(.text+0x1e): In function `Test_tryEval': > /autofs/tewa_data5/ost/R/R-2.3.0/tests/Embedding/embeddedRCall.c:81: > undefined reference to `R_ToplevelExec' > collect2: ld returned 1 exit status > make: *** [Rtest] Error 1 > [EMAIL PROTECTED]:/data5/ost/R/R-2.3.0/tests/Embedding> cd > /autofs/tewa_data5/ost/R/R-2.3.0/lib > [EMAIL PROTECTED]:/autofs/tewa_data5/ost/R/R-2.3.0/lib> nm libR.so | grep > R_Top > 000000000042c920 B R_Toplevel > 000000000042cae8 B R_ToplevelContext > 000000000007a7b0 t R_ToplevelExec > [EMAIL PROTECTED]:/autofs/tewa_data5/ost/R/R-2.3.0/lib> gcc --version > gcc (GCC) 3.3.4 (pre 3.3.5 20040809) > Copyright (C) 2003 Free Software Foundation, Inc. > This is free software; see the source for copying conditions. There is NO > warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. > > [EMAIL PROTECTED]:/autofs/tewa_data5/ost/R/R-2.3.0/lib> arch > x86_64 > [EMAIL PROTECTED]:/autofs/tewa_data5/ost/R/R-2.3.0/lib> > > > -- Brian D. Ripley, [EMAIL PROTECTED] 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 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
