Getting the following compilation error while compiling nbd:
amitava@...603.....2110...:~/data/prog/c/nbd/nbd$ ./autogen.sh
+ make -C man -f Makefile.am nbd-server.1.sh.in nbd-server.5.sh.in nbd-client.8.sh.in nbd-trdump.1.sh.in
make: Entering directory `/home/amitava/data/prog/c/nbd/nbd/man'
LC_ALL=C docbook2man nbd-server.1.in.sgml
Using catalogs: /etc/sgml/catalog
Using stylesheet: /usr/share/docbook-utils/docbook-utils.dsl#print
Working on: /home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:1:59:W: cannot generate system identifier for public text "-//OASIS//DTD DocBook V4.1//EN"
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:27:0:E: reference to entity "REFENTRY" for which no system identifier could be generated
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:1:0: entity was defined here
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:27:0:E: DTD did not contain element declaration for document type name
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:29:9:E: element "REFENTRY" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:30:15:E: element "REFENTRYINFO" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:31:12:E: element "ADDRESS" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:32:15:E: element "EMAIL" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:34:11:E: element "AUTHOR" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:35:19:E: element "FIRSTNAME" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:36:17:E: element "SURNAME" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:38:14:E: element "COPYRIGHT" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:39:11:E: element "YEAR" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:40:13:E: element "HOLDER" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:42:12:E: element "DATE" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:44:10:E: element "REFMETA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:45:17:E: element "REFENTRYTITLE" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:47:15:E: element "MANVOLNUM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:49:13:E: element "REFNAMEDIV" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:50:12:E: element "REFNAME" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:52:15:E: element "REFPURPOSE" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:53:21:E: element "ACRONYM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:53:40:E: element "ACRONYM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:56:17:E: element "REFSYNOPSISDIV" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:57:16:E: element "CMDSYNOPSIS" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:58:14:E: element "COMMAND" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:60:18:E: there is no attribute "CHOICE"
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:60:23:E: element "ARG" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:60:36:E: element "REPLACEABLE" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:61:23:E: element "ARG" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:61:36:E: element "REPLACEABLE" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:62:10:E: element "ARG" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:62:23:E: element "REPLACEABLE" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:63:10:E: element "ARG" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:63:18:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:64:10:E: element "ARG" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:64:18:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:65:10:E: element "ARG" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:65:18:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:66:10:E: element "ARG" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:66:18:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:66:34:E: element "REPLACEABLE" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:67:10:E: element "ARG" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:67:18:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:67:34:E: element "REPLACEABLE" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:68:10:E: element "ARG" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:68:18:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:68:34:E: element "REPLACEABLE" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:69:10:E: element "ARG" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:69:18:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:69:34:E: element "REPLACEABLE" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:70:10:E: element "ARG" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:70:18:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:71:10:E: element "ARG" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:71:18:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:74:11:E: element "REFSECT1" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:75:10:E: element "TITLE" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:77:9:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:77:18:E: element "COMMAND" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:83:9:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:87:9:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:87:18:E: element "COMMAND" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:95:9:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:100:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:107:11:E: element "REFSECT1" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:108:10:E: element "TITLE" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:110:17:E: element "VARIABLELIST" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:111:19:E: element "VARLISTENTRY" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:112:6:E: element "TERM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:113:10:E: element "LISTITEM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:114:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:122:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:128:19:E: element "VARLISTENTRY" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:129:6:E: element "TERM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:129:14:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:131:10:E: element "LISTITEM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:132:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:138:19:E: element "VARLISTENTRY" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:139:6:E: element "TERM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:139:14:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:140:10:E: element "LISTITEM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:141:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:148:19:E: element "VARLISTENTRY" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:149:6:E: element "TERM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:149:14:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:150:10:E: element "LISTITEM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:151:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:154:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:159:19:E: element "VARLISTENTRY" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:160:6:E: element "TERM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:160:14:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:161:10:E: element "LISTITEM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:162:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:167:19:E: element "VARLISTENTRY" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:168:6:E: element "TERM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:168:14:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:169:10:E: element "LISTITEM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:170:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:177:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:183:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:188:19:E: element "VARLISTENTRY" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:189:6:E: element "TERM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:189:14:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:190:10:E: element "LISTITEM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:191:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:201:19:E: element "VARLISTENTRY" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:202:6:E: element "TERM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:202:14:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:203:10:E: element "LISTITEM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:204:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:206:14:E: element "FILENAME" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:207:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:211:19:E: element "COMMAND" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:213:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:220:19:E: element "VARLISTENTRY" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:221:13:E: element "TERM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:221:21:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:222:10:E: element "LISTITEM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:223:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:227:19:E: element "VARLISTENTRY" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:228:13:E: element "TERM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:228:21:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:229:10:E: element "LISTITEM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:230:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:233:19:E: element "VARLISTENTRY" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:234:13:E: element "TERM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:234:21:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:235:10:E: element "LISTITEM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:236:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:239:19:E: element "VARLISTENTRY" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:240:6:E: element "TERM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:240:14:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:241:10:E: element "LISTITEM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:242:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:244:14:E: element "EMPHASIS" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:253:19:E: element "VARLISTENTRY" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:254:6:E: element "TERM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:254:14:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:255:10:E: element "LISTITEM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:256:8:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:256:23:E: element "OPTION" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:267:11:E: element "REFSECT1" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:268:10:E: element "TITLE" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:269:9:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:270:23:E: there is no attribute "MARK"
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:270:29:E: element "ITEMIZEDLIST" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:271:15:E: element "LISTITEM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:272:6:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:273:6:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:273:15:E: element "COMMAND" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:275:15:E: element "LISTITEM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:276:6:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:277:6:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:277:15:E: element "COMMAND" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:279:15:E: element "LISTITEM" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:280:6:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:283:6:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:283:15:E: element "COMMAND" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:288:11:E: element "REFSECT1" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:289:10:E: element "TITLE" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:291:9:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:294:11:E: element "REFSECT1" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:295:10:E: element "TITLE" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:296:9:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:299:9:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:301:43:E: element "EMAIL" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:303:9:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:305:14:E: element "COMMAND" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:308:9:E: element "PARA" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:308:65:E: element "EMAIL" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:309:18:E: element "PRODUCTNAME" undefined
nsgmls:/home/amitava/data/prog/c/nbd/nbd/man/nbd-server.1.in.sgml:311:31:E: element "ACRONYM" undefined
Can't call method "value" on an undefined value at /usr/share/perl5/sgmlspl-specs/docbook2man-spec.pl line 249, <STDIN> line 1.
make: *** [nbd-server.1.sh.in] Error 8
make: Leaving directory `/home/amitava/data/prog/c/nbd/nbd/man'
=============================================
Please let me know if i need to run autogen.sh or you have some other files not checked in.
thanks & regards
amitava