Compiling Berkeley db for Ruby under Cygwin

Compiling Berkeley db for Ruby under Cygwin

[Albert L. Wagner]

Even as a Linux user, I probably stay as confused about compiling
under cygwin as some windows users. I cannot figure out just
where the linker is looking to find cygwin-ruby16.  The only
cygwin-ruby16 on my Win2k machine is D:\ruby\bin\cygwin-16.dll. 
I installed Ruby1.6.5 from the executable installer into
D:\ruby.  I also have cygwin installed in D:\cygwin. I have tried
several variations of the --with-db-* options and have moved
shortcuts of cygwin-16.dll to several different directories.  But
I still cannot get past the following error.  I would appreciate
any tips.  Thanks ahead for your help.

$ make
make[1]: Entering directory `/pkg/bdb-0.2.7/src'
dllwrap --target=cygwin --as=as --dlltool-name=dlltool
--driver-name=gcc --expor
t-all -s --def=bdb.def -L/usr/local/cygwin-local/lib
-L/cygdrive/d/ruby/lib  -L/
usr/local/lib -o bdb.so bdb.o common.o cursor.o delegator.o env.o
lock.o log.o r
ecnum.o transaction.o -L. -lcygwin-ruby16 -ldb
/usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-5/../../../../i686-pc-cygwin/bin/ld:
cann
ot find -lcygwin-ruby16
collect2: ld returned 1 exit status
dllwrap: gcc exited with status 1
make[1]: *** [bdb.so] Error 1
make[1]: Leaving directory `/pkg/bdb-0.2.7/src'
make: *** [all] Error 2


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 the music is nothing if the audience is deaf."
 - Walter Lippman

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Re: Compiling Berkeley db for Ruby under Cygwin

[Gerrit P. Haase]

Hallo Albert,

Am 2002-01-03 um 18:40 schriebst du:

> Even as a Linux user, I probably stay as confused about compiling
> under cygwin as some windows users. I cannot figure out just
> where the linker is looking to find cygwin-ruby16.

1. Use the correct linker flag `-L/path/to/librubys.a/' and look
   if there is a lib named libcygwin-ruby16.a, isn't the name of
   the import lib librubys.a or was it changed since 1.6.5 and 1.6.6?
2. use `my' ruby-1.6.5 package which is available at this URI:
   http://familiehaase.de/cywgin/ruby/ and installs the lib and
   headers and dll in `cygwin-usual' places (/usr/local/lib/ruby/...,
   /usr/local/bin)
3. Build ruby yourself:
   ./configure --enable-shared
   make
   make test
   make install

Gerrit
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Re: Compiling Berkeley db for Ruby under Cygwin

[Gerrit P. Haase]

Hallo Albert,

Am 2002-01-03 um 18:40 schriebst du:

> Even as a Linux user, I probably stay as confused about compiling
> under cygwin as some windows users. I cannot figure out just
> where the linker is looking to find cygwin-ruby16.

1. Use the correct linker flag `-L/path/to/librubys.a/' and look
   if there is a lib named libcygwin-ruby16.a, isn't the name of
   the import lib librubys.a or was it changed since 1.6.5 and 1.6.6?
2. use `my' ruby-1.6.5 package which is available at this URI:
   http://familiehaase.de/cywgin/ruby/ and installs the lib and
   headers and dll in `cygwin-usual' places (/usr/local/lib/ruby/...,
   /usr/local/bin)
3. Build ruby yourself:
   ./configure --enable-shared
   make
   make test
   make install

Gerrit
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Re: Compiling Berkeley db for Ruby under Cygwin

[Gerrit P. Haase]

Hallo Albert,

> Am 2002-01-03 um 18:40 schriebst du:

>> Even as a Linux user, I probably stay as confused about compiling
>> under cygwin as some windows users. I cannot figure out just
>> where the linker is looking to find cygwin-ruby16.

> 1. Use the correct linker flag `-L/path/to/librubys.a/' and look
>    if there is a lib named libcygwin-ruby16.a, isn't the name of
>    the import lib librubys.a or was it changed since 1.6.5 and 1.6.6?

Ah, no, librubys.a is the static lib, the importlib is:
/usr/local/lib/libcygwin-ruby16.a in my build.

> 2. use `my' ruby-1.6.5 package which is available at this URI:
>    http://familiehaase.de/cywgin/ruby/ and installs the lib and
>    headers and dll in `cygwin-usual' places (/usr/local/lib/ruby/...,
>    /usr/local/bin)
> 3. Build ruby yourself:
>    ./configure --enable-shared
>    make
>    make test
>    make install

Gerrit
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Re: Compiling Berkeley db for Ruby under Cygwin

[Charles Wilson]

Gerrit P. Haase wrote:

> 
>>1. Use the correct linker flag `-L/path/to/librubys.a/' and look
>>   if there is a lib named libcygwin-ruby16.a, isn't the name of
>>   the import lib librubys.a or was it changed since 1.6.5 and 1.6.6?
>>
> 
> Ah, no, librubys.a is the static lib, the importlib is:
> /usr/local/lib/libcygwin-ruby16.a in my build.


FYI, ".dll.a" is a recognized extention meaning "import lib".  If found 
in the library search path, it takes precedence over ".a" unless -static 
is used.  E.G.

/my/lib/path/  contains
    libfoo.dll.a
    libfoo.a

Then

gcc <list of object files> -L/my/lib/path -lfoo

will find and link against /my/lib/path/libfoo.dll.a

gcc -static <list of object files> -L/my/lib/path -lfoo

will link against /my/lib/path/libfoo.a

--Chuck



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Re: Compiling Berkeley db for Ruby under Cygwin

[Gerrit P. Haase]

Hallo Charles,

Am 2002-01-05 um 07:39 schriebst du:

> Gerrit P. Haase wrote:

>>>1. Use the correct linker flag `-L/path/to/librubys.a/' and look
>>>   if there is a lib named libcygwin-ruby16.a, isn't the name of
>>>   the import lib librubys.a or was it changed since 1.6.5 and 1.6.6?

>> Ah, no, librubys.a is the static lib, the importlib is:
>> /usr/local/lib/libcygwin-ruby16.a in my build.

> FYI, ".dll.a" is a recognized extention meaning "import lib".  If found
> in the library search path, it takes precedence over ".a" unless -static 
> is used.  E.G.

> /my/lib/path/  contains
>     libfoo.dll.a
>     libfoo.a

> Then

> gcc <list of object files> -L/my/lib/path -lfoo

> will find and link against /my/lib/path/libfoo.dll.a

> gcc -static <list of object files> -L/my/lib/path -lfoo

> will link against /my/lib/path/libfoo.a

Yep, that is the 'standard' but ruby is ruby;)
Thay have their own syntax like perl too.
There is the static lib, /usr/local/lib/ruby/1.6/i686-cygwin/librubys.a
and an importlib /usr/local/lib/libcygwin-ruby16.a

Maybe a symlink libcygwin-ruby16.a -> libcygwin-ruby16.dll.a
would help?

Gerrit
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=^..^=                                        mailto:gp@familiehaase.de


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Re: Compiling Berkeley db for Ruby under Cygwin

[Gareth Pearce]

ummm could it possibly be that the dll is in ruby\bin - and your lib path on 
the compile line is ruby\lib ? - but then the name cygwin-16.dll seems wrong 
so maybe you typed that little snippit out incorrectly.

Gareth

>Even as a Linux user, I probably stay as confused about compiling
>under cygwin as some windows users. I cannot figure out just
>where the linker is looking to find cygwin-ruby16.  The only
>cygwin-ruby16 on my Win2k machine is D:\ruby\bin\cygwin-16.dll.
>I installed Ruby1.6.5 from the executable installer into
>D:\ruby.  I also have cygwin installed in D:\cygwin. I have tried
>several variations of the --with-db-* options and have moved
>shortcuts of cygwin-16.dll to several different directories.  But
>I still cannot get past the following error.  I would appreciate
>any tips.  Thanks ahead for your help.
>
>$ make
>make[1]: Entering directory `/pkg/bdb-0.2.7/src'
>dllwrap --target=cygwin --as=as --dlltool-name=dlltool
>--driver-name=gcc --expor
>t-all -s --def=bdb.def -L/usr/local/cygwin-local/lib
>-L/cygdrive/d/ruby/lib  -L/
>usr/local/lib -o bdb.so bdb.o common.o cursor.o delegator.o env.o
>lock.o log.o r
>ecnum.o transaction.o -L. -lcygwin-ruby16 -ldb
>/usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-5/../../../../i686-pc-cygwin/bin/ld:
>cann
>ot find -lcygwin-ruby16
>collect2: ld returned 1 exit status
>dllwrap: gcc exited with status 1
>make[1]: *** [bdb.so] Error 1
>make[1]: Leaving directory `/pkg/bdb-0.2.7/src'
>make: *** [all] Error 2
>
>
>--
>"It requires wisdom to understand wisdom:
>  the music is nothing if the audience is deaf."
>  - Walter Lippman
>
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