How to find why an application uses X11 on OSX? - macos

I have an application that I built myself. However, it says it needs X11 although it shouldn't . How can I easily (without expanding ldd over and over) figure out which dependency caused X11?
If it helps, here is the output of otool -L:
libopencv_core.2.3.dylib (compatibility version 2.3.0, current version 2.3.1)
libopencv_imgproc.2.3.dylib (compatibility version 2.3.0, current version 2.3.1)
libopencv_features2d.2.3.dylib (compatibility version 2.3.0, current version 2.3.1)
/opt/local/lib/libboost_serialization-mt.dylib (compatibility version 0.0.0, current version 0.0.0)
/opt/local/lib/libboost_iostreams-mt.dylib (compatibility version 0.0.0, current version 0.0.0)
/opt/local/lib/libboost_system-mt.dylib (compatibility version 0.0.0, current version 0.0.0)
/opt/local/lib/libboost_filesystem-mt.dylib (compatibility version 0.0.0, current version 0.0.0)
/opt/local/lib/libboost_unit_test_framework-mt.dylib (compatibility version 0.0.0, current version 0.0.0)
/usr/local/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 7.16.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 169.3.0)
thanks and best wishes
UPDATE
it is a unit testing executable for a computer vision module. And it is written in C++, built using cmake.

Related

Why does my binary link to libraries with #rpath (MacOS)

For a reason I don't understand some of the libraries of my binary are statically linked while others have an rpath.
$ otool -L binary
binary:
/usr/local/lib/libtest-1.2.0.dylib (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1311.100.3)
/opt/homebrew/opt/openblas/lib/libopenblas.0.dylib (compatibility version 0.0.0, current version 0.0.0)
#rpath/libtorch.dylib (compatibility version 0.0.0, current version 0.0.0)
#rpath/libtorch_cpu.dylib (compatibility version 0.0.0, current version 0.0.0)
/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 1858.112.0)
/System/Library/Frameworks/OpenCL.framework/Versions/A/OpenCL (compatibility version 1.0.0, current version 1.0.0)
How can I force my libtorch libraries for example to be statically linked without using DYLD_LIBRARY_PATH (which can't be overridden without changing some security settings on Mac)?
Thank you.

Invalid MEX-file error CascadeClassifier_.mexmaci64, libopencv_ocl.2.4.dylib

I am on OSX 10.10.
I am trying to run a demo of a project which uses the following libraries and programs:
MATLAB R2014b 64-bit.
OpenCV 2.4.10.1 installed through Homebrew.
VLFeat 0.9.20.
mexopencv.
I have run mex -setup in MATLAB which sets the compiler to clang.
The path of VLFeat and mexopencv have been added in the startup.m file in MATLAB.
When I try to run demo_test.m file I get the following errors in MATLAB:
Invalid MEX-file '/Users/maverick/Documents/Project/mexopencv-master/+cv/private/CascadeClassifier_.mexmaci64':
dlopen(/Users/maverick/Documents/Project/mexopencv-master/+cv/private/CascadeClassifier_.mexmaci64, 6): Symbol not found:
__ZN2cv3ocl12getOclMatRefERKNS_11_InputArrayE
Referenced from: /usr/local/lib/libopencv_superres.2.4.dylib
Expected in: /Applications/MATLAB_R2014b.app/bin/maci64/libopencv_ocl.2.4.dylib
in /usr/local/lib/libopencv_superres.2.4.dylib
Error in cv.CascadeClassifier (line 33)
this.id = CascadeClassifier_(filename);
Error in faceAlign (line 8)
detector = cv.CascadeClassifier('haarcascade_frontalface_alt2.xml');
Error in regressionFit (line 11)
[shape, rat, ~, init_s] = faceAlign(img, [], [], R{round_number}, b{round_number}, [], pad, [1:66], 0);
Error in demo_test (line 16)
shape = regressionFit(img, [], R, b);
I know the project works because I have tried it on another computer.
How do I resolve this error and get the project to run? Thanks.
EDIT 1:
This is the output when I run otool -L (equivalent of ldd)...
$ otool -L /Applications/MATLAB_R2014b.app/bin/maci64/libopencv_ocl.2.4.dylib
/Applications/MATLAB_R2014b.app/bin/maci64/libopencv_ocl.2.4.dylib:
#rpath/libopencv_ocl.2.4.dylib (compatibility version 2.4.0, current version 2.4.5)
#rpath/libopencv_core.2.4.dylib (compatibility version 2.4.0, current version 2.4.5)
#rpath/libopencv_imgproc.2.4.dylib (compatibility version 2.4.0, current version 2.4.5)
#rpath/libopencv_objdetect.2.4.dylib (compatibility version 2.4.0, current version 2.4.5)
#rpath/libtbb.dylib (compatibility version 0.0.0, current version 0.0.0)
/System/Library/Frameworks/OpenCL.framework/Versions/A/OpenCL (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 52.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 159.1.0)
EDIT 2:
This is the output of otool -L on CascadeClassifier_.mexmaci64
$ otool -L Documents/Project/mexopencv-master/+cv/private/CascadeClassifier_.mexmaci64
Documents/Project/mexopencv-master/+cv/private/CascadeClassifier_.mexmaci64:
/System/Library/Frameworks/Cocoa.framework/Versions/A/Cocoa (compatibility version 1.0.0, current version 20.0.0)
/usr/local/lib/libopencv_calib3d.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_contrib.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_core.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_features2d.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_flann.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_gpu.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_highgui.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_imgproc.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_legacy.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_ml.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_nonfree.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_objdetect.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_ocl.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_photo.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_stitching.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_superres.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_video.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
/usr/local/lib/libopencv_videostab.2.4.dylib (compatibility version 2.4.0, current version 2.4.10)
#rpath/libmx.dylib (compatibility version 0.0.0, current version 0.0.0)
#rpath/libmex.dylib (compatibility version 0.0.0, current version 0.0.0)
#rpath/libmat.dylib (compatibility version 0.0.0, current version 0.0.0)
/usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 120.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1197.1.1)
Am I missing some library? Is the PATH not configured correctly ?
Matlab comes bundled with its own computer vision libraries. So it tries to use them first, even if you have OpenCV installed.
The solution is to move those bundled libraries to another folder (for backup in case something goes wrong) and then sym link the actual OpenCV libraries to the location previously populated by the bundled libraries.
If, after doing this, you get any error, then it is probably because Matlab is using its own library again. Do the same process again for this library too.

Multiple libcurl.4.dylib with different compatibility versions

I'm trying to run a binary executable built for 10.7 (ISCAgent in the below example) on Mac OS X 10.6.8.
The problem with the binary is it depends on /usr/lib/libcurl.4.dylib
with compatibility version of 7.0.0, while I only have version 6.0.0 installed:
$ otool -L ISCAgent
ISCAgent:
#executable_path/libsslserver.dylib (compatibility version 0.0.0, current version 0.0.0)
#executable_path/libssl.dylib (compatibility version 1.0.0, current version 1.0.0)
#executable_path/libcrypto.dylib (compatibility version 1.0.0, current version 1.0.0)
#executable_path/libcachecom.dylib (compatibility version 0.0.0, current version 0.0.0)
#executable_path/libxerces-c-3.1.dylib (compatibility version 0.0.0, current version 0.0.0)
#executable_path/libicuuc.40.dylib (compatibility version 40.0.0, current version 40.0.0)
#executable_path/libicudata.40.dylib (compatibility version 40.0.0, current version 40.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 159.1.0)
/usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 52.0.0)
$ otool -L libxerces-c-3.1.dylib
libxerces-c-3.1.dylib:
#executable_path/libxerces-c-3.1.dylib (compatibility version 0.0.0, current version 0.0.0)
/usr/lib/libcurl.4.dylib (compatibility version 7.0.0, current version 7.0.0)
#executable_path/libicuuc.40.dylib (compatibility version 40.0.0, current version 40.0.0)
#executable_path/libicudata.40.dylib (compatibility version 40.0.0, current version 40.0.0)
/usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 52.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 159.1.0)
$ otool -L /usr/lib/libcurl.4.dylib
/usr/lib/libcurl.4.dylib:
/usr/lib/libcurl.4.dylib (compatibility version 6.0.0, current version 6.1.0)
/usr/lib/libssl.0.9.8.dylib (compatibility version 0.9.8, current version 0.9.8)
/usr/lib/libcrypto.0.9.8.dylib (compatibility version 0.9.8, current version 0.9.8)
/usr/lib/libz.1.dylib (compatibility version 1.0.0, current version 1.2.3)
/System/Library/Frameworks/LDAP.framework/Versions/A/LDAP (compatibility version 1.0.0, current version 2.2.0)
/System/Library/Frameworks/Kerberos.framework/Versions/A/Kerberos (compatibility version 5.0.0, current version 5.0.0)
/usr/lib/libresolv.9.dylib (compatibility version 1.0.0, current version 41.1.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 125.2.11)
Currently, I've just replaced libxerces-c-3.1.dylib shipped with the executable with one I built myself on my Snow Leopard, and everything seems to work.
I would like to know what my other options are, however.
Particularly:
How can I (I'm pretty sure I can't, but still) have different versions of libcurl.4.dylib with different compatibility version values in the same /usr/lib directory? I'm confused a bit here -- if code contract (API) and/or ABI changes, the version number in the library file name should also be increased, shouldn't it? If, on the other hand, we have a compatibility version mechanism, what the original version number present in the file name is good for?
How can I affect the hard-coded library paths in a 3rd-party shared object? I have a libcurl.4.dylib (from MacPorts, compatibility version 8.0.0) residing under /opt/local/lib, but exporting a proper DYLD_LIBRARY_PATH doesn't help -- libxerces-c-3.1.dylib always picks libcurl.4.dylib from /usr/lib.

MacOS shared library path

I have a C++ application that depends on several .dylib; Amongst them, libproj and PythonQt.
I pre-built these libs in separate directories.
2 (related) questions :
The executable finds the full path of the libproj.dylib, although it's not in the path, not in DYLD_LIBRARY_PATH, not in QtCreator's configuration. How ?
The executable does NOT find PythonQt, although it's linked exactly the same way. I have to manually add the right path in DYLD_LIBRARY_PATH. Why ?
It's probably related to the fact that there is a .la and a .dylib for libproj, but only a .dylib for PythonQt; but I'm not sure and I don't understand the relation.
Sample output of otool :
/Users/arnaud/Projects/myprojectname/external/proj-4.8.0/bin_mac64_gcc421_release/lib/libproj.0.dylib (compatibility version 8.0.0, current version 8.0.0)
( so it finds libproj correctly, even in another directory )
libPythonQt.1.dylib (compatibility version 1.0.0, current version 1.0.0)
(... but not libPythonQt, which is in a similar directory )
/Library/Frameworks/Python.framework/Versions/2.7/Python (compatibility version 2.7.0, current version 2.7.0)
QtOpenGL.framework/Versions/4/QtOpenGL (compatibility version 4.8.0, current version 4.8.3)
QtGui.framework/Versions/4/QtGui (compatibility version 4.8.0, current version 4.8.3)
QtCore.framework/Versions/4/QtCore (compatibility version 4.8.0, current version 4.8.3)
QtNetwork.framework/Versions/4/QtNetwork (compatibility version 4.8.0, current version 4.8.3)
/System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/AGL.framework/Versions/A/AGL (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 7.9.0)
/usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current version 697.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 125.2.11)

OSX: DLL Has A Reference to Itself?

I have a library built on OSX 10.6. It runs fine with apps on that version of MacOS. On OSX 10.7 it doesn't run right because it can't find all its dependencies properly, and I suspect it has something to with it thinking that it is linked to itself. Why would screens.so show when I run "otool -L" on screens.so? Is it something that I should remove, and if so, how?
screens.so:
screens.so (compatibility version 0.0.0, current version 0.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 111.1.4)
/usr/lib/libz.1.dylib (compatibility version 1.0.0, current version 1.2.3)
/System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0)
/System/Library/Frameworks/Carbon.framework/Versions/A/Carbon (compatibility version 2.0.0, current version 136.0.0)
/System/Library/Frameworks/Cocoa.framework/Versions/A/Cocoa (compatibility version 1.0.0, current version 12.0.0)
/System/Library/Frameworks/QuickTime.framework/Versions/A/QuickTime (compatibility version 1.0.0, current version 1327.73.0)
/System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/AGL.framework/Versions/A/AGL (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libwx_macud-2.8.0.dylib (compatibility version 2.6.0, current version 2.8.4)
/usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 7.4.0)
/usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices (compatibility version 1.0.0, current version 34.0.0)
The output is just fine - the first line is merely the ID string of the dynamic library, it shows you what will be used at link time to embed into the executable. For example:
$ otool -L /usr/lib/libz.dylib
/usr/lib/libz.dylib:
/usr/lib/libz.1.dylib (compatibility version 1.0.0, current version 1.2.5)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 159.0.0)
this shows you that linking -lz will result in /usr/lib/libz.1.dylib load command in the binary.
But back to your problem -- it has nothing to do with the first line, it has to do with this line:
/usr/lib/libwx_macud-2.8.0.dylib (compatibility version 2.6.0, current version 2.8.4)
which is linking a library that doesn't exist in Lion - are you sure you need it?

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