find libcurl. Mike's 3rdParty only has curllib.
I realize now that the in appended file I have earlier removed
searching for freetype219 since I have it but it will break the build
of osg."
CMake doesn't recognize it properly on windows.
1) the header detection on a directory "freetype" fails, it seems to
need a filename: "ft2build.h" actually works.
2) the 3rdparty I am supplying for FlightGear contains freetype-2.3.4. I
added the correct library naming for this particular release.
I double-checked my directory layout with the 3rdparty supplied by other
OSG contributors."
