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crondaemon/iwyu-wireshark.md

Created December 4, 2015 13:56
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How to setup include-what-you-use in ubuntu 14.04 to compile wireshark's dissectors
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iwyu-wireshark.md

Install clang

Iwyu relies on clang, hence we need to install it. In ubuntu 14.04 the latest version is 3.5: let's go with it.

sudo apt-get install clang-3.5 llvm-3.5-dev

Compile iwyu

Clone the github repo, and move to the 3.5 branch (same as our clang version).

git clone git@github.com:include-what-you-use/include-what-you-use.git
git checkout clang_3.5 -b clang_3.5

Compile it (I used cmake).

mkdir build
cd build
cmake -DLLVM_PATH=/usr/lib/llvm-3.5 ..
make

Install iwyu

Due to a bug of iwyu, the executable must be manually copied into the system

[from the build dir]
cp include-what-you-use /usr/lib/llvm-3.5/bin/

Use iwyu to compile Wireshark's dissectors

I succeded to use it just setting it manually in autotools, so far. Edit epan/dissectors/Makefile and set CC to /usr/lib/llvm-3.5/bin/include-what-you-use. Run it

make -k packet-aeron.o

to compile packet-aeron.c

@edenzik
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edenzik commented Nov 7, 2016

Thanks for the guide! I had to install clang headers as well:
sudo apt-get install libclang-3.5-dev

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