cmake: For non-BuildEM builds, find explicit paths to png, jpeg, curl, and lz4 instead of letting gcc find them via -lcurl etc. (It seems that gcc does not respect the -L/my_prefix/lib flag in all cases...)
cmake: For non-BuildEM builds, find explicit paths to png, jpeg, curl, and lz4 instead of letting gcc find them via -lcurl etc.
(It seems that gcc does not respect the -L/my_prefix/lib flag in all cases...)

gnayuy/libdvid-cpp,gnayuy/libdvid-cpp