Extremely hard to install rubygems on hpux

hi, all.

after installing ruby 1.8.7.p72 successfully, I tried to install
rubygems.1.3.1.

It seems to be normally installed.

but, when I execute it, the errors is generated.

#> gem update
/usr/local/lib/ruby/site_ruby/1.8/ia64-hpux11.31/zlib.so: dlsym:
Unknown symbol Init_zlib - /usr/local/lib/ruby/site_ruby/1.8/ia64-
hpux11.31/zlib.so (LoadError)

actually, this is not a error log what I first met.

first error log is “no load error - zlib”.

to resolve this problem, I trace the zlib location ruby wants. the one
of them is “/usr/local/lib/ruby/site_ruby/1.8/ia64-hpux11.31” here.

I make a symbolic link by using /usr/local/lib/libz.so.1.2.3 under
site_ruby/1.8/ia…

wow. I am still in problems.

this time ruby cannot find “zlib.rb”. I am not sure this is main
reason gem is failed. but it could be a reason.

the procedure to execute gem binary is extremely hard. :-<

this is mkkf.log in ruby1.8.7p72/ext/zlib.


have_library: checking for deflateReset() in -lz…
-------------------- yes

“gcc -o conftest -I…/… -I…/…/. -I…/…/./ext/zlib -
D_FILE_OFFSET_BITS=64 -g -O2 conftest.c -L. -L…/… -L. -
lruby-static -lz -lpthread -ldld -ldl -lm -lc”
conftest.c: In function ‘t’:
conftest.c:3: error: ‘deflateReset’ undeclared (first use in this
function)
conftest.c:3: error: (Each undeclared identifier is reported only once
conftest.c:3: error: for each function it appears in.)
checked program was:
/* begin /
1: /top/
2: int main() { return 0; }
3: int t() { void ((volatile p)()); p = (void (()()))deflateReset;
return 0; }
/
end */

“gcc -o conftest -I…/… -I…/…/. -I…/…/./ext/zlib -
D_FILE_OFFSET_BITS=64 -g -O2 conftest.c -L. -L…/… -L. -
lruby-static -lz -lpthread -ldld -ldl -lm -lc”
checked program was:
/* begin /
1: /top/
2: int main() { return 0; }
3: int t() { deflateReset(); return 0; }
/
end */


have_header: checking for zlib.h… -------------------- yes

“gcc -E -I…/… -I…/…/. -I…/…/./ext/zlib -D_FILE_OFFSET_BITS=64 -
g -O2 conftest.c -o conftest.i”
checked program was:
/* begin /
1: #include <zlib.h>
/
end */


hmn, could be this a kind of clue ?

    1. 07, ¿ÀÈÄ 10:16, Jun Y. Kim ÀÛ¼º:

On Apr 7, 2009, at 06:50, Jun Y. Kim wrote:

first error log is “no load error - zlib”.

to resolve this problem, I trace the zlib location ruby wants. the
one of them is “/usr/local/lib/ruby/site_ruby/1.8/ia64-hpux11.31”
here.

I make a symbolic link by using /usr/local/lib/libz.so.1.2.3 under
site_ruby/1.8/ia…

This won’t work as /usr/local/lib/libz.so is not a ruby extension.
The ruby zlib extensions loads this file.

-------------------- yes
/* begin /
/
begin /
D_FILE_OFFSET_BITS=64 -g -O2 conftest.c -o conftest.i"
checked program was:
/
begin /
1: #include <zlib.h>
/
end */


hmn, could be this a kind of clue ?

These are both ok (in the first instance, deflateReset is probably a
macro).

Did you get a zlib.so built? In your ruby checkout:

$ find .ext -name “zlib

If you didn’t include your entire mkmf.log

thanks Eric.

you gave me a fantastic bullet to solve problems.

There is also zlib library in .ext/ia64-hpux11.31.

I copied it in to /usr/local/lib/ruby/site_ruby/1.8/ia64-hpux11.31/.

then I got beautiful gem’s results. :slight_smile:

However, I don’t understand why this zlib library didn’t be copied
with the other libraries.

    1. 08, ¿ÀÀü 7:23, Eric H. ÀÛ¼º:

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