Update README.md

README.md

@@ -18,6 +18,8 @@ Note that depending on your system you might have to install libgfortran as well
  - SMElib requires libgfortran to be installed. The exact version, depends on the version of SMELib that you are installing and on your OS. Releases of the SMElib include the required libgfortran, that was used to compile it. If you have problems loading the library try adding that libgfortran to your library path or install that version using your package manager. You can determine the version required by your library using the ldd command line utility on linux/macos, or https://github.com/lucasg/Dependencies on Windows.
  - If this does not solve the libgfortran issues, try compiling the library on your machine using the instructions on section Build below.
  - SMELib needs the datafiles to be present, or it will fail silently. It is therefore recommended to use the included `setLibraryPath(path-to-the-datafiles)` function. While SMElib comes with a default location when it is compiled, the location is dependant on the machine it is run on. You can check the currently set path with `getLibraryPath()` and the names of the required datafiles with `GetDataFiles()`.
+ - On Mac OSX the absolute path of the libraries is coded into the .dylib files. If they are moved or renamed they need to be changed with `install_name_tool -id <fullpath> libsme.dylib` where fullpath is the full absolute path to this .dylib
+
 
 ## Build
 It is also possible to build the library yourself. This requires a C and a Fortran 77 compiler.