Very Computer

I am trying to compile xv on a Sun with the Sun C 2.0 and get this error
at the end??

Undefined                       first referenced
 symbol                             in file
 srandom                             xv.o
 random                              xv.o
 sigblock                            xvmisc.o
 gethostname                         xv.o  (/usr/lib/libnsl.so.1?)
 ld: fatal: Symbol referencing errors. No output written to xv

 If anyone has compiled this can I get your fix, like a amakefile or
 something that would get me thru this problem.
 Dave

--
Dave Keenen                     "Everything is a struggle in UNIX"
Trident Data Systems
210-655-5007                    FAX 210-655-8672

: I am trying to compile xv on a Sun with the Sun C 2.0 and get this error
: at the end??

: Undefined                       first referenced
:  symbol                             in file
:  srandom                             xv.o
:  random                              xv.o
:  sigblock                            xvmisc.o
:  gethostname                         xv.o  (/usr/lib/libnsl.so.1?)
:  ld: fatal: Symbol referencing errors. No output written to xv

:  If anyone has compiled this can I get your fix, like a amakefile or
:  something that would get me thru this problem.
:  Dave
I think that is a porting problem of SunOS 4.1.x and Solaris 2.x.
You can change those functions as following:
    srandom --> srand48
    random --> rand
    sigblock --> sighold
    gethostname --> sysinfo(SI_HOSTNAME, ...)
Or you can link the library under /usr/ucblib, but this seems cause
some dynamic-linking problem. If you take this way, you should set
the environment variable LD_LIBRARY_PATH every time you want to run
"xv".

: --
: Dave Keenen                   "Everything is a struggle in UNIX"
: Trident Data Systems
: 210-655-5007                  FAX 210-655-8672

Hi.

Quote:>I think that is a porting problem of SunOS 4.1.x and Solaris 2.x.
>You can change those functions as following:
>    srandom --> srand48
>    random --> rand

Actually you should use lrand48. rand is not really "random".

Quote:>    sigblock --> sighold
>    gethostname --> sysinfo(SI_HOSTNAME, ...)
>Or you can link the library under /usr/ucblib, but this seems cause
>some dynamic-linking problem. If you take this way, you should set
>the environment variable LD_LIBRARY_PATH every time you want to run
>"xv".

If you are going to use the Berkeley libs you should use
/usr/ucb/cc for compiling and linking so you are sure to
get the right include and library files. You will not
need to set the LD_LIBRARY_PATH either.

--
Rob Montjoy                  - Computer Engineer/Systems Administrator
University of Cincinnati     - Electrical and Computer Engineering

--  To Save the Earth. The Humans must die.

Add the following in xv.h:

#ifdef SVR4
#define HOLD_SIG         sighold(SIGALRM)
#define RELEASE_SIG      sigrelse(SIGALRM)
#define PAUSE_SIG        sigpause(SIGALRM)
#else
... original coding left here
#endif

where the original coding is:

#define HOLD_SIG         sigblock(sigmask(SIGALRM))
#define RELEASE_SIG      sigblock(0)
#define PAUSE_SIG        sigpause(0)

If you did xmkmf SVR4 will be defined automatically.  If you use the
Makefile then you need to uncomment the SVR4 line.

Blair

Even better, use the new -R switch to set the run-time libraries.
-R allows you to link against uninstalled libraries (with -L)
and then run with the "to-be-installed" location of the libraries.
THis has the added benefit of not needing the LD_LIBRARY_PATH
evironment variable, since the binary itself know where to look
for the libraries.  Syntax for -R is just like -L.

Also, I've never had a problem with any clients I've built in ucb
mode with the sparcworks compiler, you just need to add
-I/usr/ucbinclude to you build.

---
Bob Campbell                    Student Assistant System Manager
High Altitude Observatory       National Center for Atmospheric Research

      *****        "Precisely, around here "religion" means
home *|_o_o|\\      Apple vs. IBM, WP vs W4W,
brew *|. o.| ||     MickeySoft vs. The Free World,
      | o  |//      X windows vs The Forces of Darkness."
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