Commits on May 15, 2023

1. Set install name to full install path by default on macOS, closes thl… …

   …iebig#4.
   
   On macOS, running a build of openEMS installed to a custom location
   will fail. The RPATH for the custom location is not set correctly,
   only system directories are searched, as a result, fparser cannot be
   found.
   
       $ ~/opt/bin/openEMS
       dyld[90539]: Library not loaded: libfparser.4.dylib
   
   Curiously, only fparser is affected, other libraries such as CSXCAD is
   not.
   
   After some investigation, I found the root cause is that the "install
   name" of `libfparser` does not contain a full path, but CSXCAD's "install
   name" is an absolute path. Thus, CSXCAD can be found correctly using the
   absolute install path, but `libfparser` cannot. After CSXCAD and openEMS
   are built, this incomplete install name will propagate upwards, so all
   binaries will have a wrong search path for `libfparser`.
   
       $ otool -D ~/opt/lib/libCSXCAD.dylib
       /Users/gentoo/opt/lib/libCSXCAD.dylib:
       /Users/gentoo/opt/lib/libCSXCAD.0.dylib
   
       $ otool -D ~/opt/lib/libfparser.4.5.1.dylib
       /Users/gentoo/opt/lib/libfparser.4.5.1.dylib:
       libfparser.4.dylib
   
   This commits set the install name of fparser to its full install path
   by default on macOS, so it behaves consistently to libCSXCAD.
   
   Signed-off-by: Yifeng Li <tomli@tomli.me>

   

   biergaizi committed May 15, 2023
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