[opencv] Fixed cmake script for generating opencv.pc file Fixed OpenCVConfig script file

[Honza Horak]

commit 57420fa10459836fd30f120ff0fa9ff84a1fb16d
Author: Honza Horák <hhorak at redhat.com>
Date:   Wed Jul 4 16:22:39 2012 +0200

    Fixed cmake script for generating opencv.pc file
    Fixed OpenCVConfig script file

 opencv-pkgcmake.patch |   49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 49 insertions(+), 0 deletions(-)
---
diff --git a/opencv-pkgcmake.patch b/opencv-pkgcmake.patch
new file mode 100644
index 0000000..2e57d4d
--- /dev/null
+++ b/opencv-pkgcmake.patch
@@ -0,0 +1,49 @@
+diff -up OpenCV-2.4.1/cmake/OpenCVGenPkgconfig.cmake.pkgcmake OpenCV-2.4.1/cmake/OpenCVGenPkgconfig.cmake
+--- OpenCV-2.4.1/cmake/OpenCVGenPkgconfig.cmake.pkgcmake	2012-05-31 16:05:39.000000000 +0200
++++ OpenCV-2.4.1/cmake/OpenCVGenPkgconfig.cmake	2012-07-03 15:00:40.127943903 +0200
+@@ -10,7 +10,7 @@
+ # -------------------------------------------------------------------------------------------
+ set(prefix      "${CMAKE_INSTALL_PREFIX}")
+ set(exec_prefix "\${prefix}")
+-set(libdir      "") #TODO: need link paths for OpenCV_EXTRA_COMPONENTS
++set(libdir      "\${prefix}/${OPENCV_LIB_INSTALL_PATH}")
+ set(includedir  "\${prefix}/${OPENCV_INCLUDE_PREFIX}")
+ set(VERSION     ${OPENCV_VERSION})
+ 
+@@ -36,7 +36,7 @@ ocv_list_reverse(OpenCV_LIB_COMPONENTS)
+ ocv_list_reverse(OpenCV_EXTRA_COMPONENTS)
+ 
+ #build the list of components
+-set(OpenCV_LIB_COMPONENTS_ "")
++set(OpenCV_LIB_COMPONENTS_ "-L\${libdir}")
+ foreach(CVLib ${OpenCV_LIB_COMPONENTS})
+   get_target_property(libpath ${CVLib} LOCATION_${CMAKE_BUILD_TYPE})
+   get_filename_component(libname "${libpath}" NAME)
+@@ -51,8 +51,10 @@ foreach(CVLib ${OpenCV_LIB_COMPONENTS})
+   else()
+     set(installDir "${OPENCV_LIB_INSTALL_PATH}")
+   endif()
+-
+-  set(OpenCV_LIB_COMPONENTS_ "${OpenCV_LIB_COMPONENTS_} \${exec_prefix}/${installDir}/${libname}")
++  string(REPLACE "libopencv" "-lopencv" libname "${libname}")
++  string(REPLACE ".so"    "" libname "${libname}")
++  string(REPLACE ".dylib" "" libname "${libname}")
++  set(OpenCV_LIB_COMPONENTS_ "${OpenCV_LIB_COMPONENTS_} ${libname}")
+ endforeach()
+ 
+ # add extra dependencies required for OpenCV
+diff -up OpenCV-2.4.1/cmake/templates/OpenCVConfig.cmake.in.pkgcmake OpenCV-2.4.1/cmake/templates/OpenCVConfig.cmake.in
+--- OpenCV-2.4.1/cmake/templates/OpenCVConfig.cmake.in.pkgcmake	2012-07-03 15:01:44.060358547 +0200
++++ OpenCV-2.4.1/cmake/templates/OpenCVConfig.cmake.in	2012-07-03 15:02:12.787669436 +0200
+@@ -55,9 +55,9 @@ get_filename_component(OpenCV_CONFIG_PAT
+ if(NOT WIN32)
+   # Get the absolute path with no ../.. relative marks, to eliminate implicit linker warnings
+   if(${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} VERSION_LESS 2.8)
+-    get_filename_component(OpenCV_INSTALL_PATH "${OpenCV_CONFIG_PATH}/../.." ABSOLUTE)
++    get_filename_component(OpenCV_INSTALL_PATH "${OpenCV_CONFIG_PATH}/../../.." ABSOLUTE)
+   else()
+-    get_filename_component(OpenCV_INSTALL_PATH "${OpenCV_CONFIG_PATH}/../.." REALPATH)
++    get_filename_component(OpenCV_INSTALL_PATH "${OpenCV_CONFIG_PATH}/../../.." REALPATH)
+   endif()
+ endif()
+