I have recently installed R on DEC Alpha OSF 5.1.
The first regression test (reg-test-1.R) failed with an unresolved symbol in
lapack.so:
2246839:/data/h1/bifdev/apps/wga/R-1.9.1/bin/R.bin: /sbin/loader: Fatal
Error: call to unresolved symbol from
/data/h1/bifdev/apps/wga/R-1.9.1/modules/lapack.so (pc=0x3ffbfe22b60)
Further investigation has revealed that there is NO problem with lapack.so.
The problem seems to lie in the use of 'unloadNamespace' earlier in the
script.
On our machine the following line:
unloadNamespace(splines)
seem to really confuse the dynamic linking/symbol resolution. I have a very
small example to demonstrate:
data(iris)
library(splines)
unloadNamespace(splines)
data(iris)
works fine, but:
library(splines)
unloadNamespace(splines)
data(iris)
falls over with:
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable to load shared library
"/data/h1/bifdev/apps/wga/R-1.9.1/library/tools/libs/tools.so":
dlopen: /data/h1/bifdev/apps/wga/R-1.9.1/library/stats/libs/stats.so:
symbol "bdrsplerr_" unresolved
Execution halted
The unloadNamespace has effectively unloaded a symbol from a completely
different shared object.
Can anybody shed any light on this problem?
Thanks.
-----
Mike Firth
Senior Technical Specialist
AstraZeneca Pharmaceuticals
Mereside
Alderley Park
Macclesfield
Cheshire
SK10 3LT
Tel: 01625 513919
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