libzypp: revert the dso_linking_change patch as the new linker fixes it

The newer binutils recipe of version 2.21 has a fix for ld which avoids an
issue where weak symbols like pthread_cancel were causing linking to fail when
--no-add-as-needed parameter was passed to ld.

See more information here: http://bugs.debian.org/591405

This makes some of the fixes for breakage after gcc dso linking change
unnecessary and this is one of them.

Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>

meta/recipes-extended/libzypp/libzypp/dso_linking_change_build_fix.patch

@@ -1,50 +0,0 @@
-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: <20>: 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 )
- 

meta/recipes-extended/libzypp/libzypp_git.bb

@@ -13,12 +13,11 @@ RDEPENDS_${PN} = "sat-solver"
 
 S = "${WORKDIR}/git"
 PV = "0.0-git${SRCPV}"
-PR = "r5"
+PR = "r6"
 
 SRC_URI = "git://gitorious.org/opensuse/libzypp.git;protocol=git \
            file://no-doc.patch \
-           file://rpm5.patch \
-           file://dso_linking_change_build_fix.patch"
+           file://rpm5.patch "
 
 SRC_URI_append_mips = " file://mips-workaround-gcc-tribool-error.patch"