thodg/libgit2

2017-08-25T17:36:24

cmake: add switch to build with -Werror Add a simple switch to enable building with "-Werror=<warning>" instead of "-W<warning". Due to the encapsulated `ENABLE_WARNINGS` macro, this is as simple as adding a new variable "ENABLE_WERROR`, which can be passed on the command line via `-DENABLE_WERROR=ON`. The variable defaults to NO to not bother developers in their day to day work.