[Comm] ld не находит библиотеки в /usr/X11R6/lib

[Artem]

Сравнение логов configure
Под root:

   ......

   сonfigure:4135: gcc -o conftest -g -O2 -I/usr/include/gtk-2.0
   -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 
-I/usr/include/pango-1.0 -I/usr/include/Xft2
   -I/usr/include/freetype2 -I/usr/X11R6/include -I/usr/include/glib-2.0 
-I/usr/lib/glib-2.0/include   -pthread
   -I/usr/include/gnet-2.0 -I/usr/lib/gnet-2.0/include/ 
-I/usr/include/glib-2.0
   -I/usr/lib/glib-2.0/include     conftest.c  -Wl,--export-dynamic 
-lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgdk_pixbuf-2.0 -lm
   -lpangoxft-1.0 -lpangox-1.0 -lpango-1.0 -lgobject-2.0 -lgmodule-2.0 
-ldl -lglib-2.0   -pthread
   -lgnet-2.0 -lgthread-2.0 -lglib-2.0
    >&5
   configure:4141: $? = 0

   .....

А теперь то же самое под "рядовым" пользователем:
         .....

   configure:4135: gcc -o conftest -g -O2 -I/usr/include/gtk-2.0
   -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 
-I/usr/include/pango-1.0 -I/usr/include/Xft2
   -I/usr/include/freetype2 -I/usr/X11R6/include -I/usr/include/glib-2.0 
-I/usr/lib/glib-2.0/include   -pthread
   -I/usr/include/gnet-2.0 -I/usr/lib/gnet-2.0/include/ 
-I/usr/include/glib-2.0
   -I/usr/lib/glib-2.0/include     conftest.c  -Wl,--export-dynamic 
-lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgdk_pixbuf-2.0 -lm
   -lpangoxft-1.0 -lpangox-1.0 -lpango-1.0 -lgobject-2.0 -lgmodule-2.0 
-ldl -lglib-2.0   -pthread
   -lgnet-2.0 -lgthread-2.0 -lglib-2.0
    >&5
   /usr/bin/ld: warning: libXi.so.6, needed by 
/usr/lib/gcc-lib/i586-alt-linux/3.2.1/../../../libgdk-x11-2.0.so, not 
found (try using -rpath or -rpath-link)
   /usr/bin/ld: warning: libXinerama.so.1, needed by 
/usr/lib/gcc-lib/i586-alt-linux/3.2.1/../../../libgdk-x11-2.0.so, not 
found (try using -rpath or -rpath-link)
   /usr/bin/ld: warning: libXext.so.6, needed by 
/usr/lib/gcc-lib/i586-alt-linux/3.2.1/../../../libgdk-x11-2.0.so, not 
found (try using -rpath or -rpath-link)
   /usr/bin/ld: warning: libXrender.so.1, needed by 
/usr/lib/gcc-lib/i586-alt-linux/3.2.1/../../../libgdk-x11-2.0.so, not 
found (try using -rpath or -rpath-link)
   /usr/bin/ld: warning: libX11.so.6, needed by 
/usr/lib/gcc-lib/i586-alt-linux/3.2.1/../../../libgdk-x11-2.0.so, not 
found (try using -rpath or -rpath-link)
   /usr/lib/gcc-lib/i586-alt-linux/3.2.1/../../../libgdk-x11-2.0.so: 
undefined reference to `XSetInputFocus'
   /usr/lib/gcc-lib/i586-alt-linux/3.2.1/../../../libgdk-x11-2.0.so: 
undefined reference to `XFreePixmap'
   /usr/lib/gcc-lib/i586-alt-linux/3.2.1/../../../libgdk-x11-2.0.so: 
undefined reference to `XSetWMProtocols'
   /usr/lib/gcc-lib/i586-alt-linux/3.2.1/../../../libgdk-x11-2.0.so: 
undefined reference to `XShmDetach'
   /usr/lib/gcc-lib/i586-alt-linux/3.2.1/../../../libgdk-x11-2.0.so: 
undefined reference to `XLowerWindow'
   /usr/lib/gcc-lib/i586-alt-linux/3.2.1/../../../libgdk-x11-2.0.so: 
undefined reference to `XCreateFontCursor'

   .........................
   .........................
Где что смотреть, подскажите, коль не трудно?