Re: libuuid

[René Berber <r dot berber at computer dot org>]

Antony Baxter wrote:

> I'm trying to compile a PostgreSQL module that relies on libuuid. I've
> found a number of previous discussions about this lib on the mailing
> list which indicate that in general we must use the Win32api version
> libuuid.a found in /usr/lib/w32api
> 
> The source of the module can be found here:
> 
> http://code.google.com/p/polarrose-postgresql-uuid/
> 
> and the output of make is:
> 
> gcc -O2 -pipe -Wall -Wmissing-prototypes -Wpointer-arith -Winline
>   -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing
>   -I. -I/usr/include/postgresql/server -I/usr/include/postgresql/internal
>   -c -o uuid.o uuid.c
...
> dlltool --export-all --output-def uuid.def uuid.o
> 
> dllwrap -o uuid.dll --def uuid.def uuid.o
>   /usr/lib/postgresql/pgxs/src/makefiles/../../src/utils/dllinit.o
>   -L/usr/lib -lpostgres
> uuid.o:uuid.c:(.text+0xe): undefined reference to `_uuid_compare'
...
> I've tried:
> 
> dllwrap -o uuid.dll --def uuid.def uuid.o
>   /usr/lib/postgresql/pgxs/src/makefiles/../../src/utils/dllinit.o
>   -L/usr/lib -lpostgres -L/usr/lib/w32api -luuid

Try:

dllwrap -o uuid.dll --def uuid.def uuid.o
  /usr/lib/postgresql/pgxs/src/makefiles/../../src/utils/dllinit.o
  -L/usr/lib -lpostgres -Wl,-Bstatic -luuid -Wl,-Bdynamic

I don't think you need the -L/usr/lib/w32api but maybe you do, and the change
can also be written as -Wl,-Bstatic,-luuid,-Bdynamic .

Explanation: libuuid.a is a static library, you have to explicitly link it
otherwise the tools look only for dynamic libraries.
-- 
René Berber


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