libprocps can be replaced with libprocps-ng, so check for the proper library name.
This fix building with ArchLinux.
Reviewed-by: Arthur Huillet <arthur.huillet@free.fr>
Signed-off-by: José Fonseca <jfonseca@vmware.com>
     CHECK_INCLUDE_FILES(proc/readproc.h READPROC_H_FOUND)
     if (READPROC_H_FOUND)
         add_definitions (-DHAVE_READPROC_H)
+        find_library (proc_LIBRARY NAMES proc procps)
     endif ()
 endif()
 
 
         if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
             target_link_libraries (glretrace rt)
             if (READPROC_H_FOUND)
-                target_link_libraries (glretrace proc)
+                target_link_libraries (glretrace ${proc_LIBRARY})
             endif ()
         endif ()
 
     if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
         target_link_libraries (eglretrace rt)
         if (READPROC_H_FOUND)
-            target_link_libraries (eglretrace proc)
+            target_link_libraries (eglretrace ${proc_LIBRARY})
         endif ()
     endif ()