EDIT: Problem resolved, see my answer below.

Is there a problem with the GSL library in Oneiric? I'm having trouble linking and don't understand why -- this works fine in 10.4, 10.10, and 11.4.

EDIT: small test cases first, full problem is below:

Works fine on Natty:

$ cat /etc/issue

Ubuntu 11.04 

 l



$ cat gsl-test.cpp

#include <gsl/gsl_errno.h>

void handler(const char *, const char *, int, int) { }

int main() { gsl_set_error_handler(handler); }



$ g++ gsl-test.cpp  ## Expect problems since libraries not linked in

/tmp/ccnjUNdv.o: In function `main':

gsl-test.cpp:(.text+0x16): undefined reference to `gsl_set_error_handler'

collect2: ld returned 1 exit status



$ g++ -lgsl -lgslcblas gsl-test.cpp

$ ./a.out

$

Fails on Oneiric:

$ cat /etc/issue

Ubuntu 11.10 

 l



$ cat gsl-test.cpp

#include <gsl/gsl_errno.h>

void handler(const char *, const char *, int, int) { }

int main() { gsl_set_error_handler(handler); }



$ g++ gsl-test.cpp

/tmp/ccWKJMov.o: In function `main':

gsl-test.cpp:(.text+0x16): undefined reference to `gsl_set_error_handler'

collect2: ld returned 1 exit status



$ g++ -lgsl -lgslcblas -lm gsl-test.cpp

/tmp/ccV0UIx5.o: In function `main':

gsl-test.cpp:(.text+0x16): undefined reference to `gsl_set_error_handler'

collect2: ld returned 1 exit status

But this works on Oneiric:

$ g++ gsl-test.cpp -lgsl -lgslcblas

$ ./a.out

I suspect there's some difference in how g++ is working (4.6.1 vs. 4.5.2).

EDIT:

$ nm /usr/lib/libgslcblas.so

nm: /usr/lib/libgslcblas.so: no symbols

$ nm /usr/lib/libgslcblas.a|grep 'cblas_zher2k|cblas_dtrsm|cblas_zhemm'

00000000 T cblas_dtrsm

00000000 T cblas_zhemm

00000000 T cblas_zher2k

And here's the full problem, which seems to have a bit of a different flavor than my test case above, since it still isn't fixed by putting -lgsl -lgslcblas at the end of the line:

/usr/bin/c++   -g -O2  -O2 -g   -Wl,-Bsymbolic-functions CMakeFiles/css.dir/main.cpp.o  -o ../../../bin/css -rdynamic ../../../lib/libtemt.so.5.2.3 -lCoin -lQuarter -lQtOpenGL -lQtWebKit -lQtGui -lQtXml -lQtXmlPatterns -lQtNetwork -lQtCore -lode -lgslcblas -lgsl -lGLU -lGL -lSM -lICE -lX11 -lXext -lz -lreadline -lreadline -ltermcap -Wl,-rpath,/tmp/emergent-5.2.3/build/lib: 

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zher2k'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dtrsm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zhemm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_sgemv'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dgemm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_drotg'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_sscal'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_cdotc_sub'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_ssymm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zherk'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_caxpy'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_scasum'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dgemv'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_cgemm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_isamax'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dtrsv'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_sswap'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_cher2'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dasum'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_cgeru'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_csscal'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_chemm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_ctrsv'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_icamax'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_scnrm2'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_ctrsm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_drotmg'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dsyrk'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dznrm2'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_ssyr2k'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_chemv'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dsyr2'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_srotm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dscal'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_cdotu_sub'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zswap'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dswap'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zcopy'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_ztrmv'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_scopy'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_drot'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_ssyrk'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zsyr2k'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zaxpy'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zher'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_daxpy'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_cscal'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_srotmg'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_ssyr'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_strsm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dsymv'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zgeru'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dcopy'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_snrm2'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dtrmm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_strsv'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zdotc_sub'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_strmm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_csymm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_sger'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zscal'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_srotg'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_strmv'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_cgerc'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_saxpy'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_cherk'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dsdot'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_ssymv'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zher2'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_ddot'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dnrm2'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_cgemv'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zgemv'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_ctrmv'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_cswap'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zgemm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_ctrmm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_csyrk'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dsyr2k'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dsyr'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_sgemm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_srot'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dzasum'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_idamax'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_csyr2k'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zhemv'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_drotm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dsymm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zsyrk'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_sdsdot'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zgerc'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_ssyr2'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_cher'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zsymm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_ztrsm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_cher2k'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_sasum'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_ztrsv'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_ccopy'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_ztrmm'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dger'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_dtrmv'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_izamax'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zdscal'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_sdot'

/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/libgsl.so: undefined reference to `cblas_zdotu_sub'

collect2: ld returned 1 exit status

I get the same slew of undefined references if I do this, whether on Natty or Oneiric:

$ g++ gsl-test.cpp -lgsl

Not sure what to make of that yet.