[ruby-core:50601] [Ruby 1.8 - Bug #7279] Zlib load error on HP-UX

Issue #7279 has been updated by alexharv074 (Alex Harvey).


I found a workaround.

There is some documentation of HP-UX PA-RISC compiler here
http://h21007.www2.hp.com/portal/site/dspp/menuitem.863c3e4cbcdc3f3515b49c108973a801?ciid=4727276391695110VgnVCM100000275d6e10RCRD

(There's probably a better one somewhere but that's the one I used.)

The +b option is used by the linker to embed a library path list in the executable for use at run time.  However, if passing these options via CC or GCC then the option should be -Wl,+b.  The mkmf.log file shows, however, that an unknown option +b is being passed directly to gcc.

After running configure I made the following change in config.status -

    mv config.status config.status.orig
    sed -e 's/^.*RPATHFLAG.*$/S["RPATHFLAG"]=" -Wl,+b%1$-s"/' config.status.orig >config.status
    chmod +x config.status
    ./config.status

This results in /usr/local/lib/ruby/1.8/hppa2.0w-hpux11.11/rbconfig.rb having 

    # grep RPATHFLAG /usr/local/lib/ruby/1.8/hppa2.0w-hpux11.11/rbconfig.rb
      CONFIG["RPATHFLAG"] = " -Wl,+b%1$-s"

However, the make step still doesn't run properly because now -Wl,+b gets passed to ld, which is also wrong.

Thus after the make step has finished I made another change -

    cd ext/zlib
    mv Makefile Makefile.orig
    sed -e 's#^LIBPATH.*$#LIBPATH =  -L. -L$(topdir) -L/usr/local/lib +b/usr/local/lib#' Makefile.orig >Makefile
    make
    cd ../..

That works fine.  Then cd ../.. and make install and the zlib extension is installed.

Someone who understands how all this stuff works better than I do can hopefully turn this into an actual patch.
----------------------------------------
Bug #7279: Zlib load error on HP-UX
https://bugs.ruby-lang.org/issues/7279#change-34440

Author: alexharv074 (Alex Harvey)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby 1.8.7 (2012-06-29 patchlevel 370) [hppa2.0w-hpux11.11]


This was apparently a known issue on HP-UX and it is preventing me from compiling zlib
http://www.ruby-forum.com/topic/191987

To reproduce -

PA-RISC/HP-UX 11.11

<pre>
# swlist
...
  gcc                                   4.2.3          gcc
  libgcc                                4.2.3          libgcc
  m4                                    1.4.16         m4
  make                                  3.82           make
</pre>

<pre>
# /usr/local/bin/ruby extconf.rb --with-zlib-include=/usr/local/include --with-zlib-lib=/usr/local/lib
checking for deflateReset() in -lz... no
checking for deflateReset() in -llibz... no
checking for deflateReset() in -lzlib1... no
checking for deflateReset() in -lzlib... no
checking for deflateReset() in -lzdll... no
</pre>

<pre>
# file /usr/local/lib/libz.sl
/usr/local/lib/libz.sl: PA-RISC1.1 shared library
</pre>

<pre>
# file /usr/local/include/zlib.h
/usr/local/include/zlib.h:      c program text
</pre>

I have attached the mkmf.log.


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