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


Linking CXX executable DumpSelectable
cd /build_disk/poky_build/build0/tmp/work/i586-poky-linux/libzypp-0.0-git0+4494797d5b0369365b1af63921de45b197ead64f-r4/git/tools && /build_disk/poky_build/build0/tmp/sysroots/x86_64-linux/usr/bin/cmake -E cmake_link_script CMakeFiles/DumpSelectable.dir/link.txt --verbose=1
/build_disk/poky_build/build0/tmp/sysroots/x86_64-linux/usr/bin/i586-poky-linux/i586-poky-linux-g++   -march=i586  --sysroot=/build_disk/poky_build/build0/tmp/sysroots/i586-poky-linux  -fpermissive -fno-strict-aliasing -fPIC -g -Wall -Werror=format-security -Woverloaded-virtual -Wnon-virtual-dtor -Wl,-as-needed  -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed CMakeFiles/DumpSelectable.dir/DumpSelectable.cc.o  -o DumpSelectable -rdynamic ../zypp/libzypp.so.800.1.1 -lboost_program_options-mt -lutil -lrpm -lcurl -lxml2 -lz -Wl,-Bstatic -lsatsolver -lsatsolverext -Wl,-Bdynamic -lexpat -lssl -lcrypto -lboost_signals-mt -ludev -Wl,-rpath,/build_disk/poky_build/build0/tmp/work/i586-poky-linux/libzypp-0.0-git0+4494797d5b0369365b1af63921de45b197ead64f-r4/git/zypp
/build_disk/poky_build/build0/tmp/sysroots/x86_64-linux/usr/libexec/i586-poky-linux/gcc/i586-poky-linux/4.5.1/ld: Ý: invalid DSO for symbol `pthread_cancel@@GLIBC_2.0' definition
/build_disk/poky_build/build0/tmp/sysroots/i586-poky-linux/lib/libpthread.so.0: could not read symbols: Bad value
collect2: ld returned 1 exit status
make[2]: *** [tools/DumpSelectable] Error 1



| Linking CXX executable COW_debug
| cd /build_disk/poky_build/build0/tmp/work/i586-poky-linux/libzypp-0.0-git0+4494797d5b0369365b1af63921de45b197ead64f-r5/git/examples && /build_disk/poky_build/build0/tmp/sysroots/x86_64-linux/usr/bin/cmake -E cmake_link_script CMakeFiles/COW_debug.dir/link.txt --verbose=1
| /build_disk/poky_build/build0/tmp/sysroots/x86_64-linux/usr/bin/i586-poky-linux/i586-poky-linux-g++   -march=i586  --sysroot=/build_disk/poky_build/build0/tmp/sysroots/i586-poky-linux  -fpermissive -fno-strict-aliasing -fPIC -g -Wall -Werror=format-security -Woverloaded-virtual -Wnon-virtual-dtor -Wl,-as-needed  -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed CMakeFiles/COW_debug.dir/COW_debug.cc.o  -o COW_debug -rdynamic ../zypp/libzypp.so.800.1.1 -lutil -lrpm -lcurl -lxml2 -lz -Wl,-Bstatic -lsatsolver -lsatsolverext -Wl,-Bdynamic -lexpat -lssl -lcrypto -lboost_signals-mt -ludev -Wl,-rpath,/build_disk/poky_build/build0/tmp/work/i586-poky-linux/libzypp-0.0-git0+4494797d5b0369365b1af63921de45b197ead64f-r5/git/zypp
| /build_disk/poky_build/build0/tmp/sysroots/x86_64-linux/usr/libexec/i586-poky-linux/gcc/i586-poky-linux/4.5.1/ld: �: invalid DSO for symbol `pthread_cancel@@GLIBC_2.0' definition
| /build_disk/poky_build/build0/tmp/sysroots/i586-poky-linux/lib/libpthread.so.0: could not read symbols: Bad value
| collect2: ld returned 1 exit status
| make[2]: *** [examples/COW_debug] Error 1


Nitin A Kamble <nitin.a.kamble@intel.com>
Date: 2011/01/18

Index: git/tools/CMakeLists.txt
===================================================================
--- git.orig/tools/CMakeLists.txt	2010-12-19 23:59:02.000000000 -0800
+++ git/tools/CMakeLists.txt	2011-01-18 17:07:52.132140223 -0800
@@ -13,6 +13,7 @@
   )
   TARGET_LINK_LIBRARIES( ${loop_var}
     zypp
+    pthread
     boost_program_options-mt
   )
 ENDFOREACH( loop_var )
Index: git/examples/CMakeLists.txt
===================================================================
--- git.orig/examples/CMakeLists.txt	2010-12-19 23:59:01.000000000 -0800
+++ git/examples/CMakeLists.txt	2011-01-18 17:17:41.760411373 -0800
@@ -8,6 +8,7 @@
   )
   TARGET_LINK_LIBRARIES( ${loop_var}
     zypp
+    pthread
   )
 ENDFOREACH( loop_var )