I did the export as suggested and then ran the configure script again. Same err msg, so I checked the config.log and noticed that there were some missing files:
In file included from /web/servers/plugins/include/nspr/prtypes.h:482,
from /web/servers/plugins/include/nspr/pratom.h:43,
from /web/servers/plugins/include/nspr/nspr.h:38,
from /web/servers/plugins/include/nsapi.h:20,
from configure:8248:
/web/servers/plugins/include/nspr/obsolete/protypes.h:83: sys/types.h: N
o such file or directory
In file included from /web/servers/plugins/include/nspr/nspr.h:46,
from /web/servers/plugins/include/nsapi.h:20,
from configure:8248:
/web/servers/plugins/include/nspr/prinet.h:64: sys/types.h: No such file
or directory
/web/servers/plugins/include/nspr/prinet.h:65: sys/socket.h: No such fil
e or directory
/web/servers/plugins/include/nspr/prinet.h:66: netinet/in.h: No such fil
e or directory
/web/servers/plugins/include/nspr/prinet.h:81: arpa/inet.h: No such file
or directory
/web/servers/plugins/include/nspr/prinet.h:83: netdb.h: No such file or
directory
In file included from /web/servers/plugins/include/nspr/nspr.h:47,
from /web/servers/plugins/include/nsapi.h:20,
from configure:8248:
/web/servers/plugins/include/nspr/prinit.h:41: stdio.h: No such file or
directory
In file included from /web/servers/plugins/include/nspr/nspr.h:55,
from /web/servers/plugins/include/nsapi.h:20,
from configure:8248:
/web/servers/plugins/include/nspr/prmem.h:45: stdlib.h: No such file or
directory
In file included from /web/servers/plugins/include/nspr/nspr.h:59,
from /web/servers/plugins/include/nsapi.h:20,
from configure:8248:
/web/servers/plugins/include/nspr/prprf.h:56: stdio.h: No such file or d
irectory
In file included from configure:8248:
/web/servers/plugins/include/nsapi.h:260: sys/select.h: No such file or
directory
/web/servers/plugins/include/nsapi.h:262: sys/time.h: No such file or di
rectory
/web/servers/plugins/include/nsapi.h:263: sys/socket.h: No such file or
directory
/web/servers/plugins/include/nsapi.h:264: netinet/in.h: No such file or
directory
/web/servers/plugins/include/nsapi.h:265: sys/uio.h: No such file or dir
ectory
/web/servers/plugins/include/nsapi.h:268: sys/stat.h: No such file or di
rectory
/web/servers/plugins/include/nsapi.h:270: ctype.h: No such file or direc
tory
/web/servers/plugins/include/nsapi.h:271: stdio.h: No such file or direc
tory
/web/servers/plugins/include/nsapi.h:273: stdlib.h: No such file or dire
ctory
/web/servers/plugins/include/nsapi.h:274: string.h: No such file or dire
ctory
/web/servers/plugins/include/nsapi.h:275: errno.h: No such file or direc
tory
/web/servers/plugins/include/nsapi.h:276: time.h: No such file or direct
ory
/web/servers/plugins/include/nsapi.h:279: dirent.h: No such file or dire
ctory
/web/servers/plugins/include/nsapi.h:280: pwd.h: No such file or directo
ry
configure: failed program was:
#line 8247 "configure"
#include "confdefs.h"
#include </web/servers/plugins/include/nsapi.h>