Applied B. Gschaider's Mac OS X Patches versions 1 and 3
With minor changes to make it apply cleanly, removed everything
belonging to the wmake build system and the changes in etc/.
Also fixed some white-space errors and removed changes specific to
MacPorts (gaddr2line). Fixed some old-style casts.
SKIPPED VERSION 2 BECAUSE THAT ONE ONLY DEALS WITH WMAKE AND ETC/.
Obtained from
http://openfoam.cfd-online.com/forum/messages/1/OpenFOAM-1_5-Mac-v1_patch-8380.unk
http://openfoam.cfd-online.com/forum/messages/1/OpenFOAM-1_5-Mac-v3-8961.unk
Signed-off-by: Michael Wild <themiwi@users.sourceforge.net>