[CMake] linking with .so w/ non-standard names

[Bill Hoffman]

Kenneth Chang wrote:
> I manufactured a simple setup to demonstrate what I have.  I hope this 
> helps.
> 
...

Is /home/kchang/sandbox/thost/thostmduserapi.so  a valid object?  I was 
able to reproduce what you had if I did this:

cmake_minimum_required(VERSION 2.6.4)
add_executable(foo foo.c)
target_link_libraries(foo /home/hoffman/foo/foo.so)


If I copied a valid .so from /usr/lib
cp /usr/lib/libmpi.so ../foo.so

I get this:

/usr/bin/gcc    -o CMakeFiles/foo.dir/foo.c.o   -c /home/hoffman/foo/foo.c
Linking C executable foo
/home/hoffman/CMake26-build/bin/cmake -E cmake_link_script 
CMakeFiles/foo.dir/link.txt --verbose=1
/usr/bin/gcc    -fPIC CMakeFiles/foo.dir/foo.c.o  -o foo -rdynamic 
../foo.so -Wl,-rpath,/home/hoffman/foo
make[2]: Leaving directory `/home/hoffman/foo/b'

If I remove the file and create a bogus one:
rm ../foo.so
touch ../foo.so

Then I get the split:

make[2]: Leaving directory `/home/hoffman/foo/b'
make -f CMakeFiles/foo.dir/build.make CMakeFiles/foo.dir/build
make[2]: Entering directory `/home/hoffman/foo/b'
Linking C executable foo
/home/hoffman/CMake26-build/bin/cmake -E cmake_link_script 
CMakeFiles/foo.dir/link.txt --verbose=1
/usr/bin/gcc    -fPIC CMakeFiles/foo.dir/foo.c.o  -o foo -rdynamic 
-L/home/hoffman/foo -lfoo -Wl,-rpath,/home/hoffman/foo
/home/hoffman/foo/libfoo.so: file not recognized: File truncated


-Bill