Matlab - dyld: Library not loaded: /usr/local/opt/mpfr2/lib/libmpfr.1.dylib

4
votes

I am trying to compile a matlab program using mex. I am facing the following error and was wondering if you have any suggestions. I have installed latest version of mpfr at /usr/local/opt/mpfr but it is still picking /usr/local/opt/mpfr2.

The error is as below:

dyld: Library not loaded: /usr/local/opt/mpfr2/lib/libmpfr.1.dylib Referenced from: /usr/local/Cellar/gcc48/4.8.1/gcc/libexec/gcc/x86_64-apple-darwin12.5.0/4.8.1/cc1plus Reason: Incompatible library version: cc1plus requires version 4.0.0 or later, but libmpfr.1.dylib provides version 3.0.0 g++-4.8: internal compiler error: Trace/BPT trap: 5 (program cc1plus) /Applications/MATLAB_R2012b.app/bin/mex: line 1326: 15075 Abort trap: 6 /usr/local/bin/g++-4.8 -c -I/Applications/MATLAB_R2012b.app/extern/include -I/Applications/MATLAB_R2012b.app/simulink/include -DMATLAB_MEX_FILE -fno-common -fexceptions -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk/ -mmacosx-version-min=10.7 -DMX_COMPAT_32 -O2 -DNDEBUG "face-detection/src/resizef.cc" -o face-detection/private/resizef.o

2
matlabgccdyld
Possible duplicate of dyld: Library not loaded ... Reason: Image not loaded – kenorb

2 Answers

2
votes

Try running this command before compiling:

setenv('DYLD_LIBRARY_PATH','')

I was trying to compile something else (not a Matlab program) and received the same error. The same command worked in bash, so I inspected the environment variables and found that Matlab's DYLD_LIBRARY_PATH differed from bash's DYLD_LIBRARY_PATH. The bash DYLD_LIBRARY_PATH was not defined, so I set it to empty in Matlab and it fixed the path error.

Matlab's setenv documentation:

Values assigned to variables using setenv are picked up by any
process that is spawned using the MATLAB SYSTEM, UNIX, DOS or '!'
functions. You can retrieve any value set with setenv by using
GETENV(NAME).

1
votes

Try reinstalling gcc and its mpfr2 package, e.g.:

brew reinstall gcc48 mpfr2

Also make sure you're not overriding any DYLD_LIBRARY_PATH, DYLD_FALLBACK_LIBRARY_PATH or DYLD_FRAMEWORK_PATH variables from the startup shell scripts (e.g. ~/.bash_profile).