Given
ls -lrt /usr/lib/libvpx*
results
lrwxrwxrwx 1 root root 15 Feb 9 2012 /usr/lib/libvpx.so.1.0 ->libvpx.so.1.0.0
lrwxrwxrwx 1 root root 15 Feb 9 2012 /usr/lib/libvpx.so.1 -> libvpx.so.1.0.0
-rw-r--r-- 1 root root 646120 Feb 9 2012 /usr/lib/libvpx.so.1.0.0
ls -lrt /usr/lib/libschroedinger*
results
lrwxrwxrwx 1 root root 29 Feb 8 2012 /usr/lib/libschroedinger-1.0.so.0 ->libschroedinger-1.0.so.0.11.0
-rw-r--r-- 1 root root 774044 Feb 8 2012 /usr/lib/libschroedinger-1.0.so.0.11.0
ls -lrt /usr/lib/libgsm*
results
lrwxrwxrwx 1 root root 16 Nov 5 2009 /usr/lib/libgsm.so.1 -> libgsm.so.1.0.12
-rw-r--r-- 1 root root 50680 Nov 5 2009 /usr/lib/libgsm.so.1.0.12
This is a possible solution to issues found in Approach 1 of this question. You may/ may not refer that.
Possible Solution
As I mentioned in the parent question, we may need to add three find_library()
functions. Below are contents from CMakeLists.txt
possible solution 1a
find_library(VPX_LIBRARIES NAMES libvpx.so.1 PATHS /usr/lib/ )
find_library(SCHROEDINGER_LIBRARIES NAMES libschroedinger-1.0.so.0-1.0 PATHS /usr/lib/) find_library(GSM_LIBRARIES NAMES libgsm.so.1 PATHS /usr/lib/ )target_link_libraries(MyLibraryOrMyExecutable ${VPX_LIBRARIES} ${SCHROEDINGER_LIBRARIES} ${GSM_LIBRARIES} )
possible solution 1b
find_library(VPX_LIBRARIES NAMES vpx PATHS /usr/lib/)
find_library(SCHROEDINGER_LIBRARIES NAMES schroedinger-1.0 PATHS /usr/lib/) find_library(GSM_LIBRARIES NAMES gsm PATHS /usr/lib/)target_link_libraries(MyLibraryOrMyExecutable ${VPX_LIBRARIES} ${SCHROEDINGER_LIBRARIES} ${GSM_LIBRARIES} )
Error
I get the same error for both the solutions 1a and 1b
CMake Error: The following variables are used in this project, but they are set to NOTFOUND. Please set them or make sure they are set and tested correctly in the CMake files:
GSM_LIBRARIES
linked by target "MyLibraryOrMyExecutable" in directory /someDirectorySCHROEDINGER_LIBRARIES
linked by target "MyLibraryOrMyExecutable" in directory /someDirectoryVPX_LIBRARIES
linked by target "MyLibraryOrMyExecutable" in directory /someDirectory
cmake looks for libvpx.so after reading vpx in NAMES from find_library(), but find a different file like libvpx.so.1 hence I used 1b too where I have given the exact names. But still no luck.
Q How do one resolve an issue like this where the name of the shared objects also include a number after the extension, and the exact name does not match with the name given in find_library()
. ? I tried to give the exact names, that also does not work
Command find_library use CMAKE_FIND_LIBRARY_SUFFIXES and CMAKE_FIND_LIBRARY_PREFIXES variables to glue the real library name. For instance:
CMAKE_FIND_LIBRARY_SUFFIXES is a list variable and you can add a new suffix:
But I'm pretty sure that the real problem here is package manager usage (: Usually
lib<name>.so
is a symlink tolib<name>.so.N.M
file. So I recommend you to check manuals and install your library in an appropriate way.