env.h:31:3: error: #error fix endianness detection

[g1ra]

make[1]: Leaving directory `/home/g1ra/telem/lanmap2/db'                                                          
make -C tools                                                                                                     
make[1]: Entering directory `/home/g1ra/telem/lanmap2/tools'                                                      
cc -W -Wall -Wno-unused -pedantic -I../src -ggdb -Wno-unused-parameter  -ggdb  oui2insert.c   -o oui2insert       
cc -W -Wall -Wno-unused -pedantic -I../src -ggdb -Wno-unused-parameter   -c -o os-graph.o os-graph.c              
cc -W -Wall -Wno-unused -pedantic -I../src -ggdb -Wno-unused-parameter   -c -o nary.o nary.c                      
cc -W -Wall -Wno-unused -pedantic -I../src -ggdb -Wno-unused-parameter   -c -o ../src/csvread.o ../src/csvread.c  
cc -W -Wall -Wno-unused -pedantic -I../src -ggdb -Wno-unused-parameter   -c -o ../src/util.o ../src/util.c        
cc -ggdb  os-graph.o nary.o ../src/csvread.o ../src/util.o   -o os-graph                                          
make[1]: Leaving directory `/home/g1ra/telem/lanmap2/tools'                                                       
make -C src                                                                                                       
make[1]: Entering directory `/home/g1ra/telem/lanmap2/src'                                                        
cc -W -Wall -std=gnu99 -Wno-unused -ggdb -O0 -DDEBUG -Wno-unused-parameter   -c -o cap.o cap.c                    
In file included from cap.c:20:0:                                                                                 
env.h:31:3: error: #error fix endianness detection!                                                               
make[1]: *** [cap.o] Error 1                                                                                      
make[1]: Leaving directory `/home/g1ra/telem/lanmap2/src'                                                         
make: *** [all] Error 2