gapry

Results 2 issues of gapry

According the LLVM official [website](http://llvm.org/apt/), I installed the following package. `$ sudo apt-get install clang-3.8 clang-3.8-doc libclang-common-3.8-dev libclang-3.8-dev libclang1-3.8 libclang1-3.8-dbg libllvm-3.8-ocaml-dev libllvm3.8 libllvm3.8-dbg lldb-3.8 llvm-3.8 llvm-3.8-dev llvm-3.8-doc llvm-3.8-examples llvm-3.8-runtime clang-modernize-3.8...

## The Issue It occurs the following compilation error. ``` LongestEdgeBisection2D/catmullclark/viewer.cpp:2333:23: error: ‘CLOCK_MONOTONIC’ was not declared in this scope 2333 | clock_gettime(CLOCK_MONOTONIC, &thisTime); | ^~~~~~~~~~~~~~~ LongestEdgeBisection2D/catmullclark/viewer.cpp:2333:9: error: ‘clock_gettime’ was not...