GRASS 6.4.0 (dtm5m_3004):~ > g.extension extension=HydroFOSS/r.evapo.PM
Fetching <r.evapo.PM> from GRASS-Addons SVN (be patient)...
A    r.evapo.PM/local_proto.h
A    r.evapo.PM/main.c
A    r.evapo.PM/description.html
A    r.evapo.PM/functions.c
A    r.evapo.PM/Makefile
Estratta revisione 44563.
Compiling <r.evapo.PM>...
test -d OBJ.i486-pc-linux-gnu || mkdir -p OBJ.i486-pc-linux-gnu
gcc -I/build/buildd/grass-6.4.0/dist.i486-pc-linux-gnu/include  -Wall -g -O       -DPACKAGE=\""grassmods"\"  -I/build/buildd/grass-6.4.0/dist.i486-pc-linux-gnu/include -o OBJ.i486-pc-linux-gnu/functions.o -c functions.c
functions.c:4:23: error: grass/gis.h: Nessun file o directory
In file included from functions.c:6:
local_proto.h:2: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘calc_Delta’
local_proto.h:3: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘calc_g’
local_proto.h:4: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘calc_Eo’
local_proto.h:5: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘calc_Ea’
local_proto.h:6: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘calc_G’
local_proto.h:7: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘calc_ETp’
local_proto.h:8: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘calc_openwaterETp’
functions.c:8: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘f_c’
functions.c:9: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘f_f’
functions.c:10: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘f_d’
functions.c:31: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘calc_ETp’
functions.c:102: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘calc_openwaterETp’
functions.c:124:2: warning: "/*" within comment
make: *** [OBJ.i486-pc-linux-gnu/functions.o] Errore 1
ERRORE: Compilation failed, sorry. Please check above error messages.