fixes to get the independent ReadoutCard to compile with alibuild

Author: Barthelemy

cmake/FindCommon.cmake

@@ -0,0 +1,36 @@
+# - Try to find the O2 Common package include dirs and libraries
+# Author: Barthelemy von Haller
+#
+# This script will set the following variables:
+#  Common_FOUND - System has Common
+#  Common_INCLUDE_DIRS - The Common include directories
+#  Common_LIBRARIES - The libraries needed to use Common
+#  Common_DEFINITIONS - Compiler switches required for using Common
+#
+# This script can use the following variables:
+#  Common_ROOT - Installation root to tell this module where to look. (it tries LD_LIBRARY_PATH otherwise)
+
+# Init
+include(FindPackageHandleStandardArgs)
+
+# find includes
+find_path(COMMON_INCLUDE_DIR Timer.h
+           HINTS ${Common_ROOT}/include ENV LD_LIBRARY_PATH PATH_SUFFIXES "../include/Common" "../../include/Common" )
+# Remove the final "Common"
+get_filename_component(COMMON_INCLUDE_DIR ${COMMON_INCLUDE_DIR} DIRECTORY)
+set(Common_INCLUDE_DIRS ${COMMON_INCLUDE_DIR})
+
+# find library
+find_library(COMMON_LIBRARY NAMES Common HINTS ${Common_ROOT}/lib ENV LD_LIBRARY_PATH)
+set(Common_LIBRARIES ${COMMON_LIBRARY})
+
+# handle the QUIETLY and REQUIRED arguments and set COMMON_FOUND to TRUE
+# if all listed variables are TRUE
+find_package_handle_standard_args(Common  "Common could not be found. Install package Common or set Common_ROOT to its root installation directory."
+                                  COMMON_LIBRARY COMMON_INCLUDE_DIR)
+
+if(${COMMON_FOUND})
+    message(STATUS "Common found : ${Common_LIBRARIES}")
+endif()
+
+mark_as_advanced(COMMON_INCLUDE_DIR COMMON_LIBRARY)