I encounter the following errors on when compiling on Irix 6.5.23f with MIPSpro 7.4.2m compilers, 
affects Samba 3.0.4 and 3.0.5pre1.  The configure syntax I used was:
	env CC=cc CFLAGS="-O" ./configure --with-quotas --with-acl-support --with-libiconv=/opt


Compiling passdb/pdb_ldap.c
cc-1059 cc: ERROR File = passdb/pdb_ldap.c, Line = 1046
  A function call is not allowed in a constant expression.

                        LOGIN_CACHE cache_entry ={time(NULL),
                                                  ^

cc-1059 cc: ERROR File = passdb/pdb_ldap.c, Line = 1047
  A function call is not allowed in a constant expression.

                                                  pdb_get_acct_ctrl(sampass),
                                                  ^

cc-1028 cc: ERROR File = passdb/pdb_ldap.c, Line = 1047
  The expression used must have a constant value.

                                                  pdb_get_acct_ctrl(sampass),
                                                                    ^

cc-1028 cc: ERROR File = passdb/pdb_ldap.c, Line = 1048
  The expression used must have a constant value.

                                                  badcount, badtime};
                                                  ^

cc-1028 cc: ERROR File = passdb/pdb_ldap.c, Line = 1048
  The expression used must have a constant value.

                                                  badcount, badtime};
                                                            ^

cc-1164 cc: WARNING File = passdb/pdb_ldap.c, Line = 2539
  Argument of type "const char **" is incompatible with parameter of type
          "char **".

                            LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
                                                        ^

5 errors detected in the compilation of "passdb/pdb_ldap.c".
*** Error code 2 (bu21)