Maybe you are on the wrong starting directory. Should that be bitmonero-master/build?
Good call. I guess I assumed the source directory was the actual src directory and not the root of the github pull. This allowed me to build but when I run the bitmonerod.exe file built, it crashes with the log pointing to:
2015-Apr-09 06:01:49.582503 ERROR C:/msys64/home/user/bitmonero-master/src/daemon/daemon.cpp:145 Uncaught exception! Failed to initialize core
2015-Apr-09 06:01:49.582503 Deinitializing rpc server...
2015-Apr-09 06:01:49.582503 Deinitializing p2p..
I don't recommend compiling from git head if you want it to be stable, we've *just* done a bunch of merges and there are known issues as well as other unexpected hiccups. You can checkout the 0.8.8.6 git tag if you want a more stable build.
I'm mainly after trying the new db in a windows environment since the existing daemon uses about 6.2gb of memory and from the linux screenshots I've been seeing, this has been reduced to around 34mb iirc. To my knowledge, that tag would not include the latest db merge which is the sole purpose of this build.
You might try the blockchain branch (=db), since people have been using that for a while, and that avoids all the merge issues. Not sure about Windows builds from that though.