compiling problem: tab-complete.c

Under root:

I ran ./configure --prefix=/home/system/briner/psql --with-python
which work fine:

then ./make.... :( and I got this message:
gcc -Wall -Wmissing-prototypes -Wmissing-declarations
-I../../../src/interfaces/libpq -I../../../src/include -c -o
describe.o describe.c
gcc -Wall -Wmissing-prototypes -Wmissing-declarations
-I../../../src/interfaces/libpq -I../../../src/include -c -o
tab-complete.o tab-complete.c
tab-complete.c: In function `psql_completion':
tab-complete.c:306: warning: implicit declaration of function
`rl_completion_matches'
tab-complete.c:306: `rl_compentry_func_t' undeclared (first use in this
function)
tab-complete.c:306: (Each undeclared identifier is reported only once
tab-complete.c:306: for each function it appears in.)
tab-complete.c:306: parse error before ')' token
tab-complete.c:306: warning: assignment makes pointer from integer
without a cast
tab-complete.c:310: parse error before ')' token
tab-complete.c:310: warning: assignment makes pointer from integer
without a cast
tab-complete.c:315: parse error before ')' token
:
:
:
tab-complete.c:782: warning: assignment makes pointer from integer
without a cast
tab-complete.c:796: parse error before ')' token
tab-complete.c:796: warning: assignment makes pointer from integer
without a cast
make[3]: *** [tab-complete.o] Error 1
make[3]: Leaving directory
`/home/system/briner/unsaved/download/postgresql-7.2.1/src/bin/psql'
make[2]: *** [all] Error 2
make[2]: Leaving directory
`/home/system/briner/unsaved/download/postgresql-7.2.1/src/bin'
make[1]: *** [all] Error 2
make[1]: Leaving directory
`/home/system/briner/unsaved/download/postgresql-7.2.1/src'
make: *** [all] Error 2

any idea of what wrong I'm doing

OS: solaris 2.8
SunBlade 100 (sparc)
make : gnu

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