3.0.2 build failure on RHELv5.1

[Jeff Blaine]

John W. Eaton wrote:
> On 22-Sep-2008, Jeff Blaine wrote:
> 
> | That's correct:
> | 
> | octave-3.0.2:beijing> grep ZLIB config.h
> | /* Define if ZLIB is available. */
> | #define HAVE_ZLIB 1
> | #define HAVE_ZLIB_H 1
> | octave-3.0.2:beijing>
> | 
> | It's possible there is some other zlib.h being included, but
> | there is no reasonable explanation as to why.  For example:
> | 
> | octave-3.0.2:beijing> grep gzclearerr /usr/rcf/include/zlib.h
> | octave-3.0.2:beijing>
> | 
> | However, I have nothing whatsoever in my shell's environment
> | that suggests /usr/rcf anywhere.
> | 
> | octave-3.0.2:beijing> env | grep /usr/rcf
> | octave-3.0.2:beijing>
> 
> Try the following in your Octave build directory:
> 
>   cd src
>   make CXXFLAGS=-save-temps pic/c-file-ptr-stream.o
> 
> then look at the resulting c-file-ptr-stream.ii file (it will be in
> the src directory, not the src/pic directory) and see if it gives you
> any clues about why these symbols are not declared.  It should at
> least tell you which zlib.h file is included and precisely what the
> declaration for gzclearerr is, assuming it is there.
> 
> When I do this, I see
> 
>   # 1 "/usr/include/zlib.h" 1 3 4
> 
> in the .ii file at the point where zlib.h is included, and
> 
>   extern void gzclearerr (gzFile file);
> 
> later on in the file.  What happens on your system?
> 
> jwe

I see:

         # 1 "/usr/local/include/zlib.h" 1 3

And this is the same path as /usr/rcf/include/zlib.h (one
is symlinked to another).

Configure is being a little too helpful on its own by
searching /usr/local, which I don't want.

I even see this in ChangeLog.1 from 1992 :)

===================================================================
Fri Dec  4 01:51:05 1992  John W. Eaton  (jwe at schoch.che.utexas.edu)

     * configure.in (INCDIRS): Don't include /usr/local/include.
     (LIBDIRS): Don't include /usr/local/lib.
===================================================================

I've now edited configure and changed ac_default_prefix to
read "/tmp" instead of "/usr/local" and started a build.

We'll see.