Ns-3.24-errata

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Mac OS X: Shortly after the ns-3.24 release, Xcode 7.0 was released by Apple. This framework causes build problems for ns-3. Until the problem is fixed in a new release, users who encounter problems should apply the patches and workarounds in https://www.nsnam.org/bugzilla/show_bug.cgi?id=2181. This will be fixed in a ns-3.24 maintenance release.

A workaround is to pass modified CXXFLAGS to the waf configure step; i.e. instead of configuring as:

 ./waf configure --enable-examples --enable-tests

instead type (all in one line):

 CXXFLAGS="-Wall -Werror -Wno-potentially-evaluated-expression -Wno-unused-local-typedefs" ./waf configure --enable-examples --enable-tests

Python bindings detection: Users of ns-allinone-3.24 release posted on Sept. 15 will not be able to automatically detect pybindgen and use Python features including the Pyviz visualizer. This will be fixed in a ns-3.24 maintenance release. There are three workarounds (choose one of the below solutions):

1. Instead of

 ./waf configure --enable-examples --enable-tests

tell Waf explicitly how to find pybindgen with the --with-pybindgen option; e.g.

 ./waf configure --enable-examples --enable-tests --with-pybindgen=../pybindgen-0.17.0.post41+ngd10fa60

2. create a symbolic link to pybindgen, or rename the directory to 'pybindgen'; e.g.

 cd ns-allinone-3.24
 ln -s pybindgen-0.17.0.post41+ngd10fa60 pybindgen

3. patch the ns-3.24 source code with this patch: http://code.nsnam.org/ns-3.24/rev/51263c7e64bb