Arch Linux

nauty was added as a makedepend and this is fine as it only provides a static library

however now every package that links to coin-or-cbc will require nauty too:

```
** Warning: Linking the shared library libbonmin.la against the
*** static library /usr/lib/libnauty.a is not portable!
g++ -shared -nostdlib /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../lib/crti.o /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/crtbeginS.o .libs/BonCbc.o .libs/BonCbcNlpStrategy.o .libs/BonCbcNode.o .libs/BonBabInfos.o .libs/BonGuessHeurist
ic.o .libs/BonDiver.o -Wl,--whole-archive ../Algorithms/.libs/libbonalgorithms.a ../Interfaces/.libs/libbonmininterfaces.a Heuristics/.libs/libbonheuristics.a -Wl,--no-whole-archive -lCbcSolver -lCbc -lpthread -lrt /usr/lib/libnauty.a -
lCgl -lOsiClp -lOsi -lClpSolver -lClp -lcholmod -lCoinUtils -lbz2 -lz -lglpk -llapack -lblas -lipopt -L/usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0 -L/usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../lib -L/lib/../lib -L/usr/lib/../lib -L/usr
/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../.. -lstdc++ -lm -lc -lgcc_s /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/crtendS.o /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../lib/crtn.o -march=x86-64 -mtune=generic -Wl,-O1 -Wl,--sort-common -
Wl,--as-needed -Wl,-z -Wl,relro -Wl,-z -Wl,now -Wl,-soname -Wl,libbonmin.so.4 -o .libs/libbonmin.so.4.8.8
g++: error: /usr/lib/libnauty.a: No such file or directory
```

As a workaround we could move nauty to the depencies here

Another alternative would be building nauty as a shared lib