DYLD_LIBRARY_PATH considered silly
Did you know that OS X's
dlopen will search for dynamic libraries relative to
DYLD_LIBRARY_PATH first even if the input path is absolute? Does that
seem crazy to you?. It seems crazy to me.
$ make + cc foo.o + ld libfoo.dylib + cc fakefoo.o + ld libfakefoo.dylib + cc main
A sane system (Ubuntu 14.04):
Doing dlopen on the real libfoo. Any sane system will report so: === Invoking the real foo
OS X 10.10.4, aka Crazy Town:
$ ./wtf.sh Doing dlopen on the real libfoo. Any sane system will report so: === Invoking the fake foo
OK, hope this helps.