Re: Library order in gcc command

[Peter O'Gorman]

On Mon, 2007-07-09 at 14:44 +0200, Arvid Brodin wrote:
> I am doing a test installation of GTK+ on top of DirectFB (instead of on 
> X11). (I'm later going to cross compile this for an embedded system.) Now, 
> GTK+ depends on Cairo, and Cairo in turn is compiled with support for either 
> X11 or DirectFB as graphics backend. I'm installing everything to a separate 
> directory (using ./configure --prefix=/home/install_dir), and that is where 
> the DirectFB version of the Cairo libraries end up (in subdir lib/). I'm 
> normally running X11 on this system, so an X11 version of the Cairo library 
> is already installed in /usr/lib64. 
> 
> libtool is used by make to generate commands for building GTK+. libtool finds 
> both versions of the Cairo library, but unfortunately it places the 
> /usr/lib64 one first, and that makes the linker fail with undefined 
> references. (If I run the command by hand, removing the 
> /usr/lib64/libcairo.so reference, the command works fine, but there are many 
> files to compile/link and I would like a better solution.)
> 
> 
> This is what is printed by make:
> 
> /bin/sh ../libtool --mode=link gcc  -DG_DISABLE_DEPRECATED -g -O2 -Wall   -o 
> gtk-query-immodules-2.0  queryimmodules.o libgtk-directfb-2.0.la 
> ../gdk-pixbuf/libgdk_pixbuf-2.0.la ../gdk/libgdk-directfb-2.0.la 
> gcc -DG_DISABLE_DEPRECATED -g -O2 -Wall -o .libs/gtk-query-immodules-2.0 
> queryimmodules.o  ./.libs/libgtk-directfb-2.0.so 
> -L/home/install_dir/usr/local//lib 
> /home/install_dir/source/gtk+-2.10.13/gdk/.libs/libgdk-directfb-2.0.so 
> -L/home/install_dir/usr/local/lib 
> /home/install_dir/usr/local/lib/libatk-1.0.so 
> ../gdk-pixbuf/.libs/libgdk_pixbuf-2.0.so ../gdk/.libs/libgdk-directfb-2.0.so 
> /home/install_dir/usr/local//lib/libpangocairo-1.0.so /usr/lib64/libcairo.so 
> /usr/lib64/libglitz.so /usr/lib64/libXrender.so /usr/lib64/libX11.so 
> /usr/lib64/libXau.so /usr/lib64/libXdmcp.so 
> /home/install_dir/usr/local//lib/libpangoft2-1.0.so 
> /home/install_dir/usr/local//lib/libpango-1.0.so 
> /home/install_dir/usr/local//lib/libcairo.so /usr/lib64/libfontconfig.so 
> /usr/lib64/libfreetype.so /usr/lib64/libxml2.so 
> /home/install_dir/usr/local//lib/libdirectfb.so 
> /home/install_dir/usr/local//lib/libfusion.so 
> /home/install_dir/usr/local//lib/libdirect.so -lpthread 
> /usr/lib64/libpng12.so -lz /home/install_di
> r/source/gtk+-2.10.13/gdk-pixbuf/.libs/libgdk_pixbuf-2.0.so 
> /home/install_dir/usr/local//lib/libgmodule-2.0.so -ldl 
> /home/install_dir/usr/local//lib/libgobject-2.0.so 
> /home/install_dir/usr/local//lib/libglib-2.0.so -lm -Wl,--rpath 
> -Wl,/home/install_dir/usr/local/lib -Wl,--rpath 
> -Wl,/home/install_dir/usr/local//lib
> /home/install_dir/source/gtk+-2.10.13/gdk/.libs/libgdk-directfb-2.0.so: 
> undefined reference to `cairo_directfb_surface_create'
> collect2: ld returned 1 exit status
> 
> I have set LD_LIBRARY_PATH=/home/install_dir/lib - is this where libtool gets 
> the path to the correct library? And most importantly, how do I get libtool 
> to place the correct library before the /usr/lib64/libcairo.so one so that 
> the link does not fail?


check /home/install_dir/lib/*.la files for references to /usr/lib64 in
dependency_libs.

You may have to edit or remove them. Libtool is not great at building in
a root like this.

Peter