after gcc linking has changed, all the libraries must be explicitely specified 
This patch avoids these linking errors:



| i586-poky-linux-libtool: link: ccache i586-poky-linux-gcc -march=i586 --sysroot=/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux -Wall -g -pthread -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/gtk-2.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/gtk-2.0/include -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/atk-1.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/cairo -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/pango-1.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/glib-2.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/glib-2.0/include -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/pixman-1 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/freetype2 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/libpng12 -pthread -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/glib-2.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/glib-2.0/include -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/gtk-2.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/gtk-2.0/include -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/atk-1.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/cairo -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/pango-1.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/pixman-1 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/freetype2 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/libpng12 -fexpensive-optimizations -fomit-frame-pointer -frename-registers -O2 -ggdb -feliminate-unused-debug-types -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -o .libs/screenshot main.o -pthread  /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgtk-x11-2.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgdk-x11-2.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libatk-1.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgdk_pixbuf-2.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgio-2.0.so -lresolv /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libpangocairo-1.0.so -L/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libpangoft2-1.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libstdc++.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libcairo.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libpixman-1.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libpng12.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libXrender.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libX11.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libxcb.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libXau.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libXdmcp.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libz.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libpango-1.0.so -lm /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libfontconfig.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libfreetype.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libexpat.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgobject-2.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgmodule-2.0.so -ldl /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgthread-2.0.so -lpthread /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libglib-2.0.so -lrt ./.libs/libshot.a -pthread
| /disk0/pokybuild/build1/tmp/sysroots/x86_64-linux/usr/libexec/i586-poky-linux/gcc/i586-poky-linux/4.5.1/ld: L: invalid DSO for symbol `gdk_cursor_unref' definition
| /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgdk-x11-2.0.so: could not read symbols: Bad value
| collect2: ld returned 1 exit status
| make[1]: *** [screenshot] Error 1




| i586-poky-linux-libtool: link: ccache i586-poky-linux-gcc -march=i586 --sysroot=/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux -Wall -g -pthread -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/gtk-2.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/gtk-2.0/include -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/atk-1.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/cairo -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/pango-1.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/glib-2.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/glib-2.0/include -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/pixman-1 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/freetype2 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/libpng12 -pthread -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/glib-2.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/glib-2.0/include -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/gtk-2.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/gtk-2.0/include -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/atk-1.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/cairo -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/pango-1.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/pixman-1 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/freetype2 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/libpng12 -fexpensive-optimizations -fomit-frame-pointer -frename-registers -O2 -ggdb -feliminate-unused-debug-types -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -o .libs/screenshot main.o -pthread  /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgtk-x11-2.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libatk-1.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgdk_pixbuf-2.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgio-2.0.so -lresolv /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libpangocairo-1.0.so -L/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libpangoft2-1.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libstdc++.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libcairo.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libpixman-1.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libpng12.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libXrender.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libX11.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libxcb.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libXau.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libXdmcp.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libz.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libpango-1.0.so -lm /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libfontconfig.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libfreetype.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libexpat.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgobject-2.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgmodule-2.0.so -ldl /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgthread-2.0.so -lpthread /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libglib-2.0.so -lrt ./.libs/libshot.a /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgdk-x11-2.0.so -pthread
| /disk0/pokybuild/build1/tmp/sysroots/x86_64-linux/usr/libexec/i586-poky-linux/gcc/i586-poky-linux/4.5.1/ld: a: invalid DSO for symbol `gdk_pixbuf_unref' definition
| /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgdk_pixbuf-2.0.so: could not read symbols: Bad value
| collect2: ld returned 1 exit status
| make[1]: *** [screenshot] Error 1


| i586-poky-linux-libtool: link: ccache i586-poky-linux-gcc -march=i586 --sysroot=/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux -Wall -g -pthread -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/gtk-2.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/gtk-2.0/include -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/atk-1.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/cairo -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/pango-1.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/glib-2.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/glib-2.0/include -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/pixman-1 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/freetype2 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/libpng12 -pthread -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/glib-2.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/glib-2.0/include -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/gtk-2.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/gtk-2.0/include -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/atk-1.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/cairo -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/pango-1.0 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/pixman-1 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/freetype2 -I/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/include/libpng12 -fexpensive-optimizations -fomit-frame-pointer -frename-registers -O2 -ggdb -feliminate-unused-debug-types -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -o .libs/screenshot main.o -pthread  /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgtk-x11-2.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libatk-1.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libpangocairo-1.0.so -L/disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libpangoft2-1.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libstdc++.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libcairo.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libpixman-1.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libpng12.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libXrender.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libX11.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libxcb.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libXau.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libXdmcp.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libpango-1.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libfontconfig.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libfreetype.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libexpat.so ./.libs/libshot.a /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgdk-x11-2.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgdk_pixbuf-2.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgio-2.0.so -lresolv /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libz.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgobject-2.0.so /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgmodule-2.0.so -ldl /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libgthread-2.0.so -lpthread /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libglib-2.0.so -lrt -lm -pthread
| /disk0/pokybuild/build1/tmp/sysroots/x86_64-linux/usr/libexec/i586-poky-linux/gcc/i586-poky-linux/4.5.1/ld: }: invalid DSO for symbol `XUngrabServer' definition
| /disk0/pokybuild/build1/tmp/sysroots/i586-poky-linux/usr/lib/libX11.so: could not read symbols: Bad value
| collect2: ld returned 1 exit status
| make[1]: *** [screenshot] Error 1

Nitin A Kamble <nitin.a.kamble@intel.com>
Date: 2011/01/11

Update:
This is identified as a libtool issue. While creating the libshot.la 
file, libtool should have added these needed libraries in there.
 A bug has been created for this issue: 
   http://bugzilla.pokylinux.org/show_bug.cgi?id=664
Nitin A Kamble <nitin.a.kamble@intel.com>
Date: 2011/01/19


Index: screenshot/Makefile.am
===================================================================
--- screenshot.orig/Makefile.am
+++ screenshot/Makefile.am
@@ -23,4 +23,4 @@ endif
 # A standalone tool for running from a terminal and scripts
 bin_PROGRAMS = screenshot
 screenshot_SOURCES = main.c
-screenshot_LDADD = $(GTK_LIBS) libshot.la
+screenshot_LDADD = $(GTK_LIBS) libshot.la -lgdk-x11-2.0 -lgdk_pixbuf-2.0 -lX11