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comp.lang.ruby

Error with bdb installation

Oliver Cromm

1/26/2005 10:38:00 PM

I'm trying to use WordNet, database version, with ruby library. [1]

I'm getting the "error 126" when I try convertdb.rb:

| /usr/lib/ruby/site_ruby/1.8/i386-cygwin/bdb.so: dlopen, Win32 error 126 - /usr/lib/ruby/site_ruby/1.8/i386-cygwin/bdb.so (LoadError)

Not surprisingly, bdb.so is there:

% ls -l
total 402
drwxrwxrwx+ 2 crommc mkgroup-l-d 4096 Jan 26 16:40 .
drwxrwxrwx+ 8 crommc mkgroup-l-d 4096 Dec 10 12:36 ..
-rwxr-xr-x 1 crommc mkgroup-l-d 148992 Jan 26 16:39 bdb.so
-rwxr-xr-x 1 crommc mkgroup-l-d 133120 Aug 2 16:21 maxent.so
-rwxr-xr-x 1 crommc mkgroup-l-d 13312 Nov 1 17:29 mod_curia.so
[...]

I read [2] that this was an error in ruby-1.8.1 that should be fixed in
1.8.2, but upgrading Ruby to 1.8.2 didn't change this problem.

Also, in trying to reinstall bdb, I have problems with extconf.rb.
Whatever parameters I give, it says "libdb not found". What is the exact
file it is looking for?

----
Footnotes:
[1] <http://www.deveiate.org/code/Ruby-WordNe...
[2] http://groups.google.ca/groups?selm=20040812171617.EE6726F0.ocean%40m2.cc...
--
Oliver C.
45n31, 73w34
Temperatur: -14°C (-23)
12 Answers

WATANABE Hirofumi

1/27/2005 8:28:00 AM

0

Hi,

Oliver Cromm <lispamateur@internet.uqam.ca> writes:

> Also, in trying to reinstall bdb, I have problems with extconf.rb.
> Whatever parameters I give, it says "libdb not found". What is the exact
> file it is looking for?

You need to install libdb4.2 and libdb4.2-devel with:

http://cygwin.com...

--
eban

Oliver Cromm

1/27/2005 7:22:00 PM

0

* WATANABE Hirofumi wrote:

> Oliver Cromm <lispamateur@internet.uqam.ca> writes:
>
>> Also, in trying to reinstall bdb, I have problems with extconf.rb.
>> Whatever parameters I give, it says "libdb not found". What is the exact
>> file it is looking for?
>
> You need to install libdb4.2 and libdb4.2-devel with:
>
> http://cygwin.com...

Thank you; FWIW, I was missing libdb4.2-devel. But reinstalling all
Berkeley-related files didn't help me. Without change:

: $ ./extconf.rb
: ./extconf.rb: Entering directory `src'
: checking for db_version() in -ldb-4.3... no
: checking for db_version_4003() in -ldb-4.3... no
: checking for db_version() in -ldb43... no
: checking for db_version_4003() in -ldb43... no
: checking for db_version() in -ldb-4.2... no
: checking for db_version_4002() in -ldb-4.2... no
: checking for db_version() in -ldb42... no
: checking for db_version_4002() in -ldb42... no
: checking for db_version() in -ldb-4.1... no
[etc]
: extconf.rb:78: libdb not found (RuntimeError)
: from extconf.rb:64:in `catch'
: from extconf.rb:64
: ./extconf.rb: Leaving directory `src'

: $ ls /usr/lib/libdb*
: /usr/lib/libdb-4.2.a
: /usr/lib/libdb-4.2.dll.a
: /usr/lib/libdb-4.2.la
: /usr/lib/libdb.a
: /usr/lib/libdb.dll.a
: /usr/lib/libdb.la
: /usr/lib/libdb_cxx-4.2.a
: /usr/lib/libdb_cxx-4.2.dll.a
: /usr/lib/libdb_cxx-4.2.la
: /usr/lib/libdb_cxx.a
: /usr/lib/libdb_cxx.dll.a
: /usr/lib/libdb_cxx.la

So, again: what exactly is that extconf missing?




I found the following:

: $ tail -18 src/mkmf.log
: "gcc -o conftest -I/cygdrive/c/Documents and Settings/crommc/Desktop/bdb-0.5.4/
: src -I/usr/lib/ruby/1.8/i386-cygwin -I/usr/include -g -O2 conftest.c -L"/usr/
: lib" -L"/usr/lib" -lruby-static -ldb-4.2 -lcrypt "
: gcc: and: No such file or directory
: gcc: Settings/crommc/Desktop/bdb-0.5.4/src: No such file or directory
: conftest.c: In function `t':
: conftest.c:5: error: `db_version_4002' undeclared (first use in this function)
: conftest.c:5: error: (Each undeclared identifier is reported only once
: conftest.c:5: error: for each function it appears in.)
: checked program was:
: /* begin */
:
:
: /*top*/
: int main() { return 0; }
: int t() { void ((*volatile p)()); p = (void ((*)()))db_version_4002; return 0; }
: /* end */

That reminds me of the effect

: $ PATH
: bash:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/cygdrive/d/ruby/bin:/cygdrive
: /c/WINNT/system32:/cygdrive/c/WINNT:/cygdrive/c/WINNT/System32/Wbem:/cygdrive/c/
: PROGRA~1/CA/Common/SCANEN~1:/cygdrive/c/PROGRA~1/CA/eTrust/INOCUL~1:/cygdrive/c/
: Program: No such file or directory
: $ echo PATH
: /usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/cygdrive/d/ruby/bin:/cygdrive/c/WINNT/system3
: 2:/cygdrive/c/WINNT:/cygdrive/c/WINNT/System32/Wbem:/cygdrive/c/PROGRA~1/CA/Common/SCANEN~
: 1:/cygdrive/c/PROGRA~1/CA/eTrust/INOCUL~1:/cygdrive/c/Program Files/Microsoft SQL
: Server/80/Tools/BINN:/cygdrive/c/Program Files/Microsoft SQL
: Server/80/Tools/Binn/:.:/cygdrive/c/Program Files/Microsoft Visual
: Studio/Common/Tools/WinNT:/cygdrive/c/Program Files/Microsoft Visual
: Studio/Common/MSDev98/Bin:/cygdrive/c/Program Files/Microsoft Visual
: Studio/Common/Tools:/cygdrive/c/Program Files/Microsoft Visual Studio/VC98/bin

Is extconf (or mkmf) disturbed by the spaces in $PATH?
--
Oliver C.
45n31, 73w34
Temperatur: -19°C (-29)

ts

1/28/2005 9:32:00 AM

0

>>>>> "O" == Oliver Cromm <lispamateur@internet.uqam.ca> writes:

O> So, again: what exactly is that extconf missing?

What is the result of

nm /usr/lib/libdb.a | grep db_version


Guy Decoux

Claus Spitzer

1/28/2005 2:36:00 PM

0

While on the topic of Ruby-WordNet, you may want to fix a little bug
in convertdb.rb, line 183:
Where it says
if (entries % CommitThreshold).nonzero?
it should be
if (entries % CommitThreshold).zero?
The idea is to have the db commit on every 2000th record, not on every
record _but_ the 2000th ones. I went through a weekend of headaches
before I found that out ;).
You will also get a warning on line 348, where StringScanner#empty? is
obsolete (in favor of #eos?).

Oliver Cromm

1/28/2005 3:21:00 PM

0

* ts wrote:

>>>>>> "O" == Oliver Cromm <lispamateur@internet.uqam.ca> writes:
>
> O> So, again: what exactly is that extconf missing?
>
> What is the result of
>
> nm /usr/lib/libdb.a | grep db_version

0000007c T _db_version
U _db_version

--
Oliver C.
45n31, 73w34
Temperatur: -20°C (-28)

ts

1/28/2005 3:47:00 PM

0

>>>>> "O" == Oliver Cromm <lispamateur@internet.uqam.ca> writes:

O> 0000007c T _db_version
O> U _db_version

and with

nm /usr/lib/libdb.a | grep db_create

grep db_version /usr/include/db.h


Guy Decoux

Oliver Cromm

1/28/2005 8:31:00 PM

0

* ts wrote:

>>>>>> "O" == Oliver Cromm <lispamateur@internet.uqam.ca> writes:
>
> O> 0000007c T _db_version
> O> U _db_version
>
> and with
>
> nm /usr/lib/libdb.a | grep db_create
>
> grep db_version /usr/include/db.h

: $ nm /usr/lib/libdb.a | grep db_create
: U _db_create
: 0000003a T ___bam_db_create
: 00000039 T ___ham_db_create
: U _db_create
: 0000003a T ___qam_db_create
: U _db_create
: U _db_create
: U _db_create
: U _db_create
: U _db_create
: U ___bam_db_create
: U ___ham_db_create
: U ___qam_db_create
: 00000086 T _db_create
: U _db_create
: U _db_create
: U _db_create
: U _db_create
: U _db_create
: U _db_create
: $ grep db_version /usr/include/db.h
: char *db_version __P((int *, int *, int *));

--
Oliver C.
45n31, 73w34
Temperatur: -13°C (-21)

Oliver Cromm

1/28/2005 8:33:00 PM

0

* Claus Spitzer wrote:

> While on the topic of Ruby-WordNet, you may want to fix a little bug
> in convertdb.rb, line 183:
[...]

Thank you, noted down. The project being urgent, I had to roll my own
meanwhile :-(
--
Oliver C.
45n31, 73w34
Temperatur: -13°C (-21)

ts

1/29/2005 12:10:00 PM

0

>>>>> "O" == Oliver Cromm <lispamateur@internet.uqam.ca> writes:

O> : $ grep db_version /usr/include/db.h
O> : char *db_version __P((int *, int *, int *));

???

Anyway try it with

uln% diff -u bdb-0.5.4/src/extconf.rb.old bdb-0.5.4/src/extconf.rb
--- bdb-0.5.4/src/extconf.rb.old 2004-11-14 16:30:06.000000000 +0100
+++ bdb-0.5.4/src/extconf.rb 2005-01-28 17:16:26.000000000 +0100
@@ -58,20 +58,26 @@
""
end

+under = if with_config("db-underscore")
+ "_"
+ else
+ ""
+ end
+
version = with_config('db-version', "-4.3,43,-4.2,42,-4.1,41,-4.0,-4,40,4,3,2,").split(/,/, -1)
version << "" if version.empty?

catch(:done) do
version.each do |with_ver|
if unique != true
- db_version = "db_version" + unique
+ db_version = "#{under}db_version" + unique
throw :done if have_library("db#{with_ver}", db_version)
end
if with_ver != "" && (unique == "" || unique == true)
/(\d)\.?(\d)?/ =~ with_ver
major = $1.to_i
minor = $2.to_i
- db_version = "db_version_" + (1000 * major + minor).to_s
+ db_version = "#{under}db_version_" + (1000 * major + minor).to_s
throw :done if have_library("db#{with_ver}", db_version)
end
end
uln%

and run it with

ruby extconf.rb --with-db-underscore


I'll try to find a better solution


Guy Decoux

Oliver Cromm

1/29/2005 10:17:00 PM

0

Claus Spitzer wrote:

> While on the topic of Ruby-WordNet, you may want to fix a little bug
> in convertdb.rb, line 183:
> Where it says
> if (entries % CommitThreshold).nonzero?
> it should be
> if (entries % CommitThreshold).zero?
> The idea is to have the db commit on every 2000th record, not on every
> record _but_ the 2000th ones. I went through a weekend of headaches
> before I found that out ;).

As I said in the other post, the Ruby-dbd installation went ok at home,
so I could install Ruby-WordNet, after the following detours (let's
collect them ;-)

1. Your above-mentioned patch.

2. I had to reduce CommitThreshold to 1000, before that I got a "cuold
not allocate memory" error, even after closing all other applications.
I have 192 MB on that machine.

3. I couldn't run the tests, because I didn't have Test::Unit::Mock,
although it is supposed to be included in ruby 1.8.2. Not in the cygwin
version, it seems. I could install the latest release after I changed
this line in the install.rb file:

| elsif site_libdir !~ Regexp.quote(@version)

to

| elsif !site_libdir =~ Regexp.quote(@version)

because it was giving me a "type mismatch: String given" error. Then all
the tests ran ok.

4. I could install the docs after changing all the references to 'css2'
in docs/makedocs.rb to 'html', because there is no css2.rb file in my
RDoc. It would be better to write scripts in a tad more flexible manner.
--
Oliver C.