opencv: Fix pkg-config file.

Libdir was pointing to the wrong location

also fix for QA Issue: opencv.pc failed sanity test (tmpdir) in path

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-oe/recipes-support/opencv/opencv/fixpkgconfig.patch

@@ -0,0 +1,29 @@
+diff --git a/cmake/OpenCVGenPkgconfig.cmake b/cmake/OpenCVGenPkgconfig.cmake
+index b8cb8777c06b..75281ee964fd 100644
+--- a/cmake/OpenCVGenPkgconfig.cmake
++++ b/cmake/OpenCVGenPkgconfig.cmake
+@@ -27,7 +27,7 @@ macro(fix_prefix lst isown)
+       get_filename_component(libdir "${item}" PATH)
+       get_filename_component(libname "${item}" NAME_WE)
+       string(REGEX REPLACE "^lib(.*)" "\\1" libname "${libname}")
+-      list(APPEND _lst "-L${libdir}" "-l${libname}")
++      list(APPEND _lst "-l${libname}")
+     else()
+       list(APPEND _lst "-l${item}")
+     endif()
+@@ -66,10 +66,14 @@ ocv_list_unique(_3rdparty)
+ 
+ set(OPENCV_PC_LIBS
+   "-L\${exec_prefix}/${OPENCV_LIB_INSTALL_PATH}"
++  "-L\${exec_prefix}/${OPENCV_3P_LIB_INSTALL_PATH}"
+   "${_modules}"
+ )
+ if (BUILD_SHARED_LIBS)
+-  set(OPENCV_PC_LIBS_PRIVATE "${_extra}")
++  set(OPENCV_PC_LIBS_PRIVATE
++    "-L\${exec_prefix}/${OPENCV_LIB_INSTALL_PATH}"
++    "${_extra}"
++  )
+ else()
+   set(OPENCV_PC_LIBS_PRIVATE
+     "-L\${exec_prefix}/${OPENCV_3P_LIB_INSTALL_PATH}"

meta-oe/recipes-support/opencv/opencv_3.1.bb

@@ -16,7 +16,8 @@ SRCREV_opencv = "92387b1ef8fad15196dd5f7fb4931444a68bc93a"
 SRCREV_contrib = "5409d5ad560523c85c6796cc5a009347072d883c"
 SRCREV_FORMAT = "opencv"
 SRC_URI = "git://github.com/Itseez/opencv.git;name=opencv \
-	   git://github.com/Itseez/opencv_contrib.git;destsuffix=contrib;name=contrib"
+            git://github.com/Itseez/opencv_contrib.git;destsuffix=contrib;name=contrib \
+            file://fixpkgconfig.patch"
 
 PV = "3.1+git${SRCPV}"