Re: [Boost-build] Sorry, option '-openmp' is not supported on FreeBSD

From: Alexander Nasonov (alnsn_at_[hidden])
Date: 2006-01-09 17:52:50

[reposting because previous message didn't reach the list]

Douglas Gregor wrote:

 > -openmp implies OpenMP support, which are aren't using in Boost at 
all. It doesn't look like it implies pthreads.
 > However, the Intel compiler does seem to support the (GCC) option - 
pthreads. We could probably use that, instead.

I contacted with Volodya. He checked that Boost.Threads compiles fine on 
intel-linux 8.1 with CFLAGS=-D_REENTRANT and LINKFLAGS=-lpthread.
Though, I don't think we should change this for linux platform. I was 
planning to add LINKFLAGS=-mt *only* for FreeBSD but my compiler can't 
create .so files.

Link action is expanded to:

     icpc -g -lpthread -KPIC -shared -o 
"../../../bin/boost/libs/thread/build/libboost_thread.so/intel-linux/debug/shared-linkable-true/threading-multi/libboost_thread-il-mt-d-1_34.so.1.34.0"
"../../../bin/boost/libs/thread/build/libboost_thread.so/intel-linux/debug/shared-linkable-true/threading-multi/barrier.o" 
"../../../bin/boost/libs/thread/build/libboost_thread.so/intel-linux/debug/shared-linkable-true/threading-multi/condition.o" 
"../../../bin/boost/libs/thread/build/libboost_thread.so/intel-linux/debug/shared-linkable-true/threading-multi/exceptions.o" 
"../../../bin/boost/libs/thread/build/libboost_thread.so/intel-linux/debug/shared-linkable-true/threading-multi/mutex.o" 
"../../../bin/boost/libs/thread/build/libboost_thread.so/intel-linux/debug/shared-linkable-true/threading-multi/once.o" 
"../../../bin/boost/libs/thread/build/libboost_thread.so/intel-linux/debug/shared-linkable-true/threading-multi/recursive_mutex.o" 
"../../../bin/boost/libs/thread/build/libboost_thread.so/intel-linux/debug/shared-linkable-true/threading-multi/read_write_mutex.o" 
"../../../bin/boost/libs/thread/build/libboost_thread.so/intel-linux/debug/shared-linkable-true/threading-multi/thread.o" 
"../../../bin/boost/libs/thread/build/libboost_thread.so/intel-linux/debug/shared-linkable-true/threading-multi/tss_hooks.o" 
"../../../bin/boost/libs/thread/build/libboost_thread.so/intel-linux/debug/shared-linkable-true/threading-multi/tss_dll.o" 
"../../../bin/boost/libs/thread/build/libboost_thread.so/intel-linux/debug/shared-linkable-true/threading-multi/tss_pe.o" 
"../../../bin/boost/libs/thread/build/libboost_thread.so/intel-linux/debug/shared-linkable-true/threading-multi/tss.o" 
"../../../bin/boost/libs/thread/build/libboost_thread.so/intel-linux/debug/shared-linkable-true/threading-multi/xtime.o" 
-lrt "-Qoption,link,-soname,libboost_thread-il-mt-d-1_34.so.1.34.0"

Which reports:

/usr/local/intel_cc_80/bin/ldwrapper/ld: 
/usr/local/intel_cc_80/lib/crtbeginS.o: No such file: No such file or 
directory

If I remove -shared I get this error:

/usr/local/intel_cc_80/bin/ldwrapper/ld: cannot find -lrt

And finally, if I remove -lrt, the error is:

/usr/lib/crt1.o(.text+0x72): In function `_start':
: undefined reference to `main'

Either -shared is disabled for non-commercial license or on FreeBSD :(

-- 
Alexander Nasonov