I just downloaded and compiled ETW-3.6-src.tar.gz and downloaded and unzipped the etwdatas.zip file.
Unfortunately, etw crashes with the following output on the console:
$ ./etw
Found language file catalogs/deutsch/etw.catalog...
Catalog length: 3816 bytes
Found 147 language strings in catalog...
Reading configuration...
open on etw.cfg failed, trying case insensitive... (etw.cfg in ./)
open on newgfx/pitcha+.gfx failed, trying case insensitive... (pitcha+.gfx in newgfx/)
FOUND, opening: newgfx/Pitcha+.gfx
open on newgfx/pitchb+.gfx failed, trying case insensitive... (pitchb+.gfx in newgfx/)
FOUND, opening: newgfx/PitchB+.gfx
open on newgfx/pitchc+.gfx failed, trying case insensitive... (pitchc+.gfx in newgfx/)
FOUND, opening: newgfx/PitchC+.gfx
open on newgfx/pitchd+.gfx failed, trying case insensitive... (pitchd+.gfx in newgfx/)
FOUND, opening: newgfx/PitchD+.gfx
open on newgfx/pitche+.gfx failed, trying case insensitive... (pitche+.gfx in newgfx/)
FOUND, opening: newgfx/PitchE+.gfx
open on newgfx/pitchf+.gfx failed, trying case insensitive... (pitchf+.gfx in newgfx/)
FOUND, opening: newgfx/PitchF+.gfx
Loading teams from teams/default...
League: France 98 V:3-P:1-L:0-S:32
open on key_red failed, trying case insensitive... (key_red in ./)
open on key_blue failed, trying case insensitive... (key_blue in ./)
Palette allocation...
Menu palette remapped.
Opening game window...
Anim System initialization...
Start: InitAnimSystem!
Loading 16 colors from gfx_t newgfx/hurricane
Loading newgfx/hurricane...GfxObject 320 x 256 x 4
Opening fonts...
Carico font <newgfx/eat2.font, 7x8>...
Carico font <newgfx/eat.font, 5x5>...
Carico font <newgfx/eatinfo.font, 8x10>...
Font aperti correttamente
Sound system initialization...
Initializing audio channels...
AUDIO: Asking for 22050/8/470/1, obtained 22050/8/470/1
Loading a WAV sample... [intro/bombdrop.wav]
*** Unable to load sample!
Unable to find sample +intro/bombdrop.wav!
Done.
Entering loop...
Freeing a gfx_t.
FreeGfxObj - width: 320
Program exited cleanly!
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Looks like the available etwdatas.zip is incompatible to the 3.6 sources. Could you please update the data package?