Thanks for helping me understand what is going on. Understanding is really my reason for the compile. I took the R_tryEval() route to fixing the problem.
I am running SuSE Linux 9.2 on that machine, which might support visibility under gcc3 as Brian points out. Thanks again, George Duncan Temple Lang wrote: > > In addition to the compiler issues, the test should also be changed. > It should use R_tryEval() directly rather than Test_tryEval(). The > test preceeds the existence > of that exported routine that was motivated by the same > usage that gave rise to this test. > > I'll commit an update when I get a few minutes. > > D. > > Prof Brian Ripley wrote: >> 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> >>> >>> >>> >> -- George Ostrouchov Statistics and Data Sciences Group Computer Science and Mathematics Division Oak Ridge National Laboratory http://www.csm.ornl.gov/~ost Register for the JRC 2006? http://2006jointresearch.bus.utk.edu/ Conference starts June 6, 2006. ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
