Error when linking libglxtest.a

Hi all,

I'm getting a linking error when compling the vcl module - the issue is
around libglxtest.a

chris@LibreOfficeDev:~/repos/LibreOffice/core$ make vcl
cd /home/chris/repos/LibreOffice/core/vcl && /usr/bin/make  -j 2 -rs
[ DEP ] LNK:Executable/icontest
[ LNK ] Executable/icontest
[ LOC ] top level modules: vcl
[ LOC ] loaded modules: vcl
[ CUT ] vcl_fontcharmap
[ CUT ] vcl_complextext
/usr/bin/ld:
/home/chris/repos/LibreOffice/core/workdir/LinkTarget/StaticLibrary/libglxtest.a(glxtest.o):
undefined reference to symbol 'dlopen@@GLIBC_2.1'
/usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libdl.so: error
adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
make[1]: ***
[/home/chris/repos/LibreOffice/core/workdir/LinkTarget/Executable/icontest]
Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [vcl] Error 2

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Anyone have any ideas? -ldl is set correctly, so can't work out why it
can't link to libdl!

I've cc'ed in moggi...

Chris