Hi,
I have built a static library lib1 and test program lib1test using the
following CMAKE 2.6.2 commands without problems.
INCLUDE_DIRECTORIES( /usr/local/boost_1_39_0 )
ADD_LIBRARY( lib1 STATIC ${lib1_srcs} )
ADD_EXECUTABLE( lib1test lib1test.cpp )
LINK_DIRECTORIES( /usr/local/lib ) # boost stuff
TARGET_LINK_LIBRARIES( lib1test lib1 boost_filesystem-gcc42-mt
boost_system-gcc42-mt )
When attempting to build a 2nd static library lib2 (which uses code in lib1)
and test program lib2test with a similar script -
INCLUDE_DIRECTORIES( /home/john/lib1/src )
ADD_LIBRARY( lib2 STATIC ${lib2_srcs} )
ADD_EXECUTABLE( lib2test lib2test.cpp )
LINK_DIRECTORIES( /home/john/lib1/src ) ## doesn't work here
TARGET_LINK_LIBRARIES( lib2test lib2 lib1 boost_filesystem-gcc42-mt
boost_system-gcc42-mt)
I get the following link error
/usr/lib64/gcc/x86_64-suse-linux/4.2.1/../../../../x86_64-suse-linux/bin/ld:
cannot find -llib1
If LINK_DIRECTORIES is moved before ADD_EXECUTABLE -
LINK_DIRECTORIES( /home/john/lib1/src ) ## works here
ADD_EXECUTABLE( lib2test lib2test.cpp )
TARGET_LINK_LIBRARIES( lib2test lib2 lib1 boost_filesystem-gcc42-mt
boost_system-gcc42-mt)
lib2test links and executes.
I would really appreciate some help with the following questions.
1. Are the boost libraries statically or dynamically linked to lib1test?
2. Why does moving LINK_DIRECTORIES before ADD_EXECUTABLE appear to fix things?
3. The location of the boost libraries has not been specfied but lib2test still
links?
TIA,
John.
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