Re: Reduce dependancies of postmaster (without --as-needed)

On Nov 28 2005, Tom Lane wrote:

> Larry Rosenman <ler(at)lerctr(dot)org> writes:
> > -lnsl is needed on SVR4 derivatives, like Solaris and UnixWare. it is
> > the network services library.
>
> > You'll needed it for ANY socket based code on these platforms.
>
> Is there any specific function symbol we can test for in that library?
> If it exports something like socket() or connect() on SVR4, we can make
> configure probe for that instead of blindly including the library.

libsocket requires libnsl:

$ dump -Lv /usr/lib/libsocket.so|more

/usr/lib/libsocket.so:

**** DYNAMIC SECTION INFORMATION ****
[INDEX] Tag Value

.dynamic:
[1] NEEDED /usr/lib/libnsl.so.1
[2] INIT 0xba30
[3] SONAME /usr/lib/libsocket.so.2
[4] HASH 0xa0
[5] STRTAB 0x22bc
[6] SYMTAB 0x95c
[7] STRSZ 0x1229
[8] SYMENT 0x10
[9] PLTGOT 0xec2c
[10] PLTSZ 0x4b8
[11] PLTREL 0x11
[12] JMPREL 0x36d0
[13] REL 0x34e8
[14] RELSZ 0x1e8
.....

So, Is there a configure check for stuff like that?

LER

--
Larry Rosenman http://www.lerctr.org/~ler
Phone: +1 972-414-9812 E-Mail: ler(at)lerctr(dot)org
US Mail: 3535 Gaspar Drive, Dallas, TX 75220-3611