1

Errors I get when trying to build the first block of code on this page under Xcode

Undefined symbols for architecture x86_64:

"fl_define_FL_SHADOW_LABEL()", referenced from:

 _main in main.o

I installed FLTK with homebrew by brew install FLTK and there were no errors:

/usr/local/Cellar/fltk/1.3.2_1: 315 files, 5.8M, built in 93 seconds

I realize this problem has been asked before, but the answer

You need to install it first as it's not on Mac OS X, using something like homebrew/macports/manually which will provide you with an installed copy that can be referenced using the User Header Search Paths and Library Search Paths, as well as referencing the fltk library(/ies) in the Linked Frameworks and Libraries

did not work for me or I got the specific file paths wrong. I have tried Xcode 5.1.1 and 6.0 and both have the same problem.

I have attached a screenshot of my build settings. Build Settings on Xcode

Improve this question

1 Answer 1

Reset to default
2

I have found the solution at groups.google.com and below is what I have done:

  1. Change build settings as such:

    Header Search Paths : -I/usr/local/include

    Library Search Paths : /usr/local/lib

Search Paths

  1. Go to terminal and type fltk-config --ldflags

    You get a line of flags, mine was -L/usr/local/Cellar/fltk/1.3.2_1/lib -lfltk -lpthread -framework Cocoa.

    In Xcode Build settings, paste that in other linker flags

enter image description here

  1. After these steps Xcode compiled the file successfully.
Improve this answer
Sign up to request clarification or add additional context in comments.

1 Comment

For me what was missing was the User Header Search Paths part. Nice job! ;)

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.