# - Try to find the PAM libraries
# Once done this will define
#
#  PAM_FOUND - system has pam
#  PAM_INCLUDE_DIR - the pam include directory
#  PAM_LIBRARIES - libpam library

if(PAM_INCLUDE_DIR AND PAM_LIBRARY)
  set(PAM_FIND_QUIETLY TRUE)
endif(PAM_INCLUDE_DIR AND PAM_LIBRARY)

find_path(PAM_INCLUDE_DIR NAMES security/pam_appl.h pam/pam_appl.h)
find_library(PAM_LIBRARY pam)
find_library(DL_LIBRARY dl)

if(PAM_INCLUDE_DIR AND PAM_LIBRARY)
  set(PAM_FOUND TRUE)
  if(DL_LIBRARY)
    set(PAM_LIBRARIES ${PAM_LIBRARY} ${DL_LIBRARY})
  else(DL_LIBRARY)
    set(PAM_LIBRARIES ${PAM_LIBRARY})
  endif(DL_LIBRARY)

  if(EXISTS ${PAM_INCLUDE_DIR}/pam/pam_appl.h)
    set(HAVE_PAM_PAM_APPL_H 1)
  endif(EXISTS ${PAM_INCLUDE_DIR}/pam/pam_appl.h)
endif(PAM_INCLUDE_DIR AND PAM_LIBRARY)

if(PAM_FOUND)
  if(NOT PAM_FIND_QUIETLY)
    message(STATUS "Found PAM: ${PAM_LIBRARIES}")
  endif(NOT PAM_FIND_QUIETLY)
else(PAM_FOUND)
  if(PAM_FIND_REQUIRED)
    message(FATAL_ERROR "PAM was not found")
  endif(PAM_FIND_REQUIRED)
endif(PAM_FOUND)

mark_as_advanced(PAM_INCLUDE_DIR PAM_LIBRARY DL_LIBRARY)
