gentoo-overlay/dev-util/cmake/files/cmake-2.8.6-FindLAPACK-2.patch

--- cmake-2.8.6.orig/Modules/FindLAPACK.cmake	2011-10-09 23:38:48.956933106 +0800
+++ cmake-2.8.6.orig/Modules/FindLAPACK.cmake	2011-10-09 23:39:52.002144646 +0800
@@ -1,3 +1,9 @@ 
+#
+# Version modified for Gentoo Linux
+# If a valid PkgConfig configuration is found, this overrides and cancels
+# all further checks.
+#
+
 # - Find LAPACK library
 # This module finds an installed fortran library that implements the LAPACK
 # linear-algebra interface (see http://www.netlib.org/lapack/).
@@ -36,6 +42,14 @@ 
 # (To distribute this file outside of CMake, substitute the full
 #  License text for the above reference.)
 
+#
+# first, try PkgConfig
+#
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(LAPACK lapack)
+if(NOT LAPACK_FOUND)
+message(STATUS "No PkgConfig configuration for LAPACK found; starting more extensive search.")
+
 set(_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
 
 get_property(_LANGUAGES_ GLOBAL PROPERTY ENABLED_LANGUAGES)
@@ -304,4 +318,6 @@ 
  endif(NOT LAPACK_FIND_QUIETLY)
 endif(BLA_F95)
 
 set(CMAKE_FIND_LIBRARY_SUFFIXES ${_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
+
+endif(NOT LAPACK_FOUND)