Mac Print Ld_library_path
I am using g++ 3.3 on os X 10.3.9. I have created my own library
using
ar ruv *.o files
After this I try to compile a test program using,
g++ -pg -O -Wno-deprecated -ansi -pedantic -o test test.C
-DANSI_HEADERS -D_G_HAVE_BOOL -I. -I/ALLINCLUDEDIRS -lmylib -llpsolve51
-lm -L.
And the compilation works fine.
But when i try to run the executable ./test, I get the following error
message:
dyld: ./test_grid can't open library: liblpsolve51.dylib (No such file
or directory, errno = 2)
Trace/BPT trap
The library liblpsolve.dylib is NOT located in the current directory. I tried checking the value of LD_LIBRARY_PATH using echo$LD_LIBRARY_PATH, but nothing showed up.
It seems that LD_LIBRARY_PATH is not set, and moreover I am not even sure if it is used on darwin? On posting to a newsgroup, I was told that I need DYLD_LIBRARY_PATH instead. On doing echo $DYLD_LIBRARY_PATH I do not see any paths. Isn't a default value set for them already?
How can I resolve this problem?
thanks,
amit.
I've found on some platforms (e.g. Arm with Linaro toolchain) that ldconfig doesn't actually search the same directories as the run time linker. You can get it to output its search path, and include the paths from LDLIBRARYPATH by enabling debugging. Nov 09, 2018 Dismiss Join GitHub today. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Aug 15, 2008 You can always use LDLIBRARYPATH (or DYLDLIBRARYPATH on the Mac) to force the runtime linker to locate the right dynamic libraries - but that's cheating, and should only be used as a hack of last resort. Better to construct the binaries correctly so that they can locate their dependencies without the need to alter the user's environment.
Jul 28, 2015 Where to Set Environment Variables in Mac OS X. Jul 28, 2015 - 11 Comments. At the command line, environmental variables are defined for the current shell and become inherited by any running command or process. Set LDLIBRARYPATH for applications started from the desktop. Ask Question Asked 9 years, 5 months ago. Active 6 years, 7 months ago. Viewed 41k times 8. I have Qt Creator installed on Ubuntu 10.04 LTS. When I launch Qt Creator from the desktop I can build the application I.
5 Setting environment variables
On Windows, TOMLAB requires the directory tomlab/shared to be included in the environment variable PATH.
Ld Library Path Linux
On Linux, TOMLAB requires the tomlab/shared folder to be present in the LD_LIBRARY_PATH environment variable. If TOMLAB is installed with super-user privileges on Linux, the installer will add a ldconfig entry to /etc/ld.so.conf.d/tomlab.conf, eliminating the need for manual manipulation of LD_LIBRARY_PATH.
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It is possible to set this in several ways.
5.1 Shared libraries path
The library search path environment variable name differs betweendifferent systems:
- Linux: LD_LIBRARY_PATH
- Windows: PATH
TOMLAB for Mac OS X does not currently require the corresponding variable to be set, due to all binaries having hard-coded paths to their respective dependencies. This, on the other hand, demands that binary files in the TOMLAB directory are not moved from their locations.
The way environment variables are set varies depending on operating systems and shells.
5.1.1 Windows
To set the PATH environment variable permanently on Windows,do: Control Panel → System → Advanced→ Environment Variables. Assuming TOMLAB was installedin C:tomlab, append (or prepend) C:tomlabshared separated to the otherentries with a semi-colon (;) to the PATH environmentvariable.
The PATH environment variable can also be set temporarily ina running command shell. This is done by doing
This change will only be applied in that command shell, and willtherefore be discarded when the command shell is terminated.
5.1.2 Linux systems
Set on command line when invoking MATLAB:
where <ml> is the name of your MATLAB executable andtpath is the TOMLAB installation path. If LD_LIBRARY_PATHis already set to something and you wish to preserve this, includethe part in [ ] - but not the actual brackets themselves.
Set in $HOME/.bashrc, $HOME/.profile, $HOME/.cshrc (or$HOME/.matlab7rc.sh if it exists):
If you have an existing value in LD_LIBRARY_PATH, use a colon : toseparate directories when adding the TOMLAB directory:
Python Ld Library Path
If installing for multiple users as super-user, /etc/ld.so.conf.d/tomlab.conf is automatically created, eliminating the need for path manipulation.
Mac OS X installations do not require the corresponding variable DYLD_LIBRARY_PATH to be set, but proper function depends on the locationof the tomlab/shared folder and its contents.
5.1.3 MATLAB 7.8+ on 64-bit Linux
A potential problem concerning shared library versions may lead to crashes when running certain TOMLAB MEX files.This is related to MATLAB and/or the runtime linker loading the wrong version of a support library.
The following workaround is suggested:
Start Matlab 7.8+ from a shell prompt with the following option:
In the above command, replace $TOMLAB with the path to your TOMLABinstallation, and $MATLAB78 with the name of your MATLAB 7.8binary. This may vary depending on your particular setup, e.g. ifhaving a symbolic link to the MATLAB binary or not. You may need tospecify the full path to the MATLAB installation. For example:
Additionally, if using the KNITRO solver and you experience errors about libgomp.sonot being found, add an LD_PRELOAD statement for this library too. Use locate or find to find its full path. It is not supplied with TOMLAB.