- mfm_main_ui.cxx source modified:
     - line 3344/3529 changed from: system("mfmmount &");
     - to: system("sudo mfmmount &");
     - allows seamless mount/umount with partiton GUI (like TC Mount Tool)

- required extensions to build:
     FLTK-1.1.10-dev.tcz

- no compile, just 'make'

- Makefile changes:
     tc@box:/tmp/mfm$ diff Makefile Makefile-custom
     8c8
     < CXX           =g++
     ---
     > CXX           =g++ -march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti

- NOTES:
     - MFM will not build with FLTK-1.3 loaded and installed (Xprogs dependency)
     - 'base norestore' boot required to build from CLI
     - then load FLTK-1.1.10-dev.tcz (not FLTK-1.3)