libsystem_symptoms.dylib missing in Xcode 8

Question

I just updated to Xcode 8, and I can no longer build xml2-based applications. If I build a simple file and try to build it as follows:

c++ myapp.cc `xml2-config         


        

Answer 1

This is an XCode 8 bug.

While waiting for a proper fix from Apple, the following command removes the reference to the missing library from the tbd files.

sudo /usr/bin/sed -i.backup 's@/usr/lib/system/libsystem_symptoms.dylib\(, \)\?@@' \
  $(grep -ril /usr/lib/system/libsystem_symptoms.dylib \
    /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/lib)

I don't know if it will works for every kind of build, but it fixed everything was not working for me.