libpq error when installing postgres 7 on solaris 7???

Dear All,

I am trying to install postgres 7.0.2 on solaris
7. I have d/l'ed and installed gcc and gmake which are
needed for postgres.

Then I have run ./configure as given in install
file after untaring it. Then I have run gmake and
while executing this command i got the following error
message:-

gmake[2]: Entering directory
`/usr/share/src/postgresql-7.0.2/src/interfaces/libpq'
ar crs libpq.a `lorder fe-auth.o fe-connect.o
fe-exec.o fe-misc.o fe-print.o fe-lobj.o pqexpbuffer.o
dllist.o pqsignal.o inet_aton.o | tsort`
/bin/sh: lorder: not found
/bin/sh: tsort: not found
/bin/sh: ar: not found
gmake[2]: *** [libpq.a] Error 1
gmake[2]: Leaving directory
`/usr/share/src/postgresql-7.0.2/src/interfaces/libpq'
gmake[1]: *** [all] Error 2
gmake[1]: Leaving directory
`/usr/share/src/postgresql-7.0.2/src/interfaces'
gmake: *** [all] Error 2

How Can I solve this problem ???
Awaiting for replies...

Thanks & Regards

Rajesh.

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