Linux 64 bit run 32 bit app (zeos + postgresql)
lazarus / 1-Linux

----------------------------------------------------------------------
dewie · 2010-04-22 07:12

I'm investigating the use of lazarus for a linux desktop application.
The zeos library doesn't seem to work on a 64 bit linux system.
Ubuntu 64 can run 32 bit's programs, but i'm running into a problem,
the libpq.so get's loaded at runtime i think :

daniel@tcmmr:~$ ldd project1
   linux-gate.so.1 =>  (0xf77be000)
   libX11.so.6 => /usr/lib32/libX11.so.6 (0xf767c000)
   libgdk_pixbuf-2.0.so.0 => /usr/lib32/libgdk_pixbuf-2.0.so.0
(0xf7662000)
   libgtk-x11-2.0.so.0 => /usr/lib32/libgtk-x11-2.0.so.0 (0xf728c000)
   libgdk-x11-2.0.so.0 => /usr/lib32/libgdk-x11-2.0.so.0 (0xf71f6000)
   libgobject-2.0.so.0 => /usr/lib32/libgobject-2.0.so.0 (0xf71b7000)
   libglib-2.0.so.0 => /lib32/libglib-2.0.so.0 (0xf70ed000)
   libgthread-2.0.so.0 => /usr/lib32/libgthread-2.0.so.0 (0xf70e7000)
   libgmodule-2.0.so.0 => /usr/lib32/libgmodule-2.0.so.0 (0xf70e1000)
   libpango-1.0.so.0 => /usr/lib32/libpango-1.0.so.0 (0xf709e000)
   libpthread.so.0 => /lib32/libpthread.so.0 (0xf7085000)
   libatk-1.0.so.0 => /usr/lib32/libatk-1.0.so.0 (0xf7069000)
   libcairo.so.2 => /usr/lib32/libcairo.so.2 (0xf6fef000)
   libdl.so.2 => /lib32/libdl.so.2 (0xf6fea000)
   libc.so.6 => /lib32/libc.so.6 (0xf6e91000)
   libxcb.so.1 => /usr/lib32/libxcb.so.1 (0xf6e77000)
   libgio-2.0.so.0 => /usr/lib32/libgio-2.0.so.0 (0xf6dd9000)
   librt.so.1 => /lib32/librt.so.1 (0xf6dd0000)
   libm.so.6 => /lib32/libm.so.6 (0xf6da9000)
   libpangocairo-1.0.so.0 => /usr/lib32/libpangocairo-1.0.so.0
(0xf6d9d000)
   libXcomposite.so.1 => /usr/lib32/libXcomposite.so.1 (0xf6d99000)
   libXdamage.so.1 => /usr/lib32/libXdamage.so.1 (0xf6d95000)
   libXfixes.so.3 => /usr/lib32/libXfixes.so.3 (0xf6d8f000)
   libpangoft2-1.0.so.0 => /usr/lib32/libpangoft2-1.0.so.0
(0xf6d68000)
   libfreetype.so.6 => /usr/lib32/libfreetype.so.6 (0xf6cf1000)
   libfontconfig.so.1 => /usr/lib32/libfontconfig.so.1 (0xf6cc1000)
   libXext.so.6 => /usr/lib32/libXext.so.6 (0xf6cb1000)
   libXrender.so.1 => /usr/lib32/libXrender.so.1 (0xf6ca7000)
   libXinerama.so.1 => /usr/lib32/libXinerama.so.1 (0xf6ca3000)
   libXi.so.6 => /usr/lib32/libXi.so.6 (0xf6c94000)
   libXrandr.so.2 => /usr/lib32/libXrandr.so.2 (0xf6c8c000)
   libXcursor.so.1 => /usr/lib32/libXcursor.so.1 (0xf6c82000)
   libpcre.so.3 => /lib32/libpcre.so.3 (0xf6c51000)
   /lib/ld-linux.so.2 (0xf77bf000)
   libpixman-1.so.0 => /usr/lib32/libpixman-1.so.0 (0xf6bf7000)
   libdirectfb-1.2.so.0 => /usr/lib32/libdirectfb-1.2.so.0
(0xf6b7f000)
   libfusion-1.2.so.0 => /usr/lib32/libfusion-1.2.so.0 (0xf6b75000)
   libdirect-1.2.so.0 => /usr/lib32/libdirect-1.2.so.0 (0xf6b5f000)
   libpng12.so.0 => /lib32/libpng12.so.0 (0xf6b3a000)
   libxcb-render-util.so.0 => /usr/lib32/libxcb-render-util.so.0
(0xf6b35000)
   libxcb-render.so.0 => /usr/lib32/libxcb-render.so.0 (0xf6b2c000)
   libz.so.1 => /usr/lib32/libz.so.1 (0xf6b17000)
   libXau.so.6 => /usr/lib32/libXau.so.6 (0xf6b13000)
   libXdmcp.so.6 => /usr/lib32/libXdmcp.so.6 (0xf6b0d000)
   libresolv.so.2 => /lib32/libresolv.so.2 (0xf6af9000)
   libselinux.so.1 => /lib32/libselinux.so.1 (0xf6add000)
   libexpat.so.1 => /lib32/libexpat.so.1 (0xf6ab6000)


This should run, but when i run te app, i get :


daniel@tcmmr:~$ ./project1
Xlib:  extension "RANDR" missing on display ":0.0".
Xlib:  extension "RANDR" missing on display ":0.0".
[WARNING] Out of OEM specific VK codes, changing to unassigned
[WARNING] Out of unassigned VK codes, assigning $FF
[FORMS.PP] ExceptionOccurred
  Sender=Exception
  Exception=None of the dynamic libraries can be found: libpq.so.4,
libpq.so
  Stack trace:

The 32 bits library is installed :

daniel@tcmmr:~$ cd /usr/lib32/
daniel@tcmmr:/usr/lib32$ ls -al | grep libpq
-rw-r--r--  1 root root   201376 2010-04-22 10:44 libpq.a
lrwxrwxrwx  1 root root       12 2010-04-22 10:44 libpq.so ->
libpq.so.5.2
lrwxrwxrwx  1 root root        8 2010-04-22 10:26 libpq.so.4 ->
libpq.so


I don't have a problem developping on 32 bits linux, but it has to run
on 64 bits./
Anyone an idea ?