Cant get BOPM to compile.....

It fails with:
config.c: In function 'libopm_config_create':
config.c:93: error: invalid lvalue in assignment
config.c:97: error: invalid lvalue in assignment
config.c:102: error: invalid lvalue in assignment
config.c: In function 'libopm_config_set':
config.c:191: error: invalid lvalue in assignment
make[5]: *** [config.lo] Error 1

Slackware 10.2 with gcc 4.0.2

I then tried it from CVS and it gave the same exact error.