Add find module for LIBHQR (hierarchical householder tree)

modules/find/FindLIBHQR.cmake

+# - Try to find LibHQR
+# Once done this will define
+#  LIBHQR_FOUND - System has LibHQR
+#  LIBHQR_INCLUDE_DIRS - The LibHQR include directories
+#  LIBHQR_LIBRARIES - The libraries needed to use LibHQR
+#  LIBHQR_DEFINITIONS - Compiler switches required for using LIBHQR
+
+find_package(PkgConfig)
+if(PKG_CONFIG_FOUND)
+  pkg_check_modules(PC_LIBHQR QUIET libhqr)
+endif()
+
+find_path(
+  LIBHQR_INCLUDE_DIR
+  libhqr.h
+  HINTS  ${LIBHQR_DIR} ${PC_LIBHQR_INCLUDEDIR} ${PC_LIBHQR_INCLUDE_DIRS}
+  PATH_SUFFIXES include include/libhqr
+  )
+
+find_library(
+  LIBHQR_LIBRARY
+  NAMES hqr
+  HINTS ${LIBHQR_DIR} ${PC_LIBHQR_LIBDIR} ${PC_LIBHQR_LIBRARY_DIRS}
+  PATH_SUFFIXES lib lib32 lib64 lib/libhqr lib32/libhqr lib64/libhqr
+  )
+
+set(LIBHQR_DIR "" CACHE PATH "Path where LIBHQR was installed")
+
+
+include(FindPackageHandleStandardArgs)
+# handle the QUIETLY and REQUIRED arguments
+# and set LIBHQR_FOUND to TRUE
+# if all listed variables are TRUE
+find_package_handle_standard_args(
+  LIBHQR DEFAULT_MSG LIBHQR_LIBRARY LIBHQR_INCLUDE_DIR)
+
+mark_as_advanced(LIBHQR_INCLUDE_DIR LIBHQR_LIBRARY )
+
+set(LIBHQR_LIBRARIES ${LIBHQR_LIBRARY} )
+set(LIBHQR_INCLUDE_DIRS ${LIBHQR_INCLUDE_DIR} )
+set(LIBHQR_DEFINITIONS ${PC_LIBHQR_CFLAGS_OTHER} )