In the case of trying to compile the tbb.cc code using the command
sudo gcc tbb.cc -std=c++11
I get a long string of errors that look something like this
tbb.cc:(.text._ZN9__gnu_cxx13new_allocatorISt10_List_nodeIN6dealii10WorkStream8internal15Implementation225IteratorRangeToItemStreamINS_17__normal_iteratorIPiSt6vectorIiSaIiEEEE12scratch_data9copy_dataE8ItemType17ScratchDataObjectEEE8allocateEmPKv[_ZN9__gnu_cxx13new_allocatorISt10_List_nodeIN6dealii10WorkStream8internal15Implementation225IteratorRangeToItemStreamINS_17__normal_iteratorIPiSt6vectorIiSaIiEEEE12scratch_data9copy_dataE8ItemType17ScratchDataObjectEEE8allocateEmPKv]+0x46):
undefined reference to `operator new(unsigned long)'
/tmp/ccAgCMHw.o: In function
Peter -- two comments:
1/ Using sudo is almost always a terrible idea. What you're doing is
calling the compiler as *root* (i.e., as the superuser). There really
shouldn't be any reason to do this, but so many reasons *not* to do this
because you may accidentally overwrite files that shouldn't be
overwritten, you could be writing into directories that need to stay as
they are, etc.
2/ The command 'gcc tbb.cc -std=c++11' trie to compile and link the
tbb.cc file into an executable. But tbb.cc depends on many other files,
so while you should be able to compile it into an object file, you won't
be able to link it into an executable without linking in a large number
of other object files. That's in essence what the error message is saying.
My suggestion is to just stick with how the installation process is
intended to be used:
* no sudo, no superuser
* compile and install into a directory somewhere within your homedir
* go to one of the example dirs in the installation directory
* call 'cmake .'
* compile
This should work.
For your own project, you can copy one of the existing example
directories somewhere else, then call
cmake -DDEAL_II_DIR=/where/you/installed/dealii .
and it should still work.
Best
W.
--
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Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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