FIND_PATH(PAM_INCLUDE_DIR security/pam_modules.h) IF (PAM_INCLUDE_DIR) SET(PAM_FOUND TRUE) ENDIF (PAM_INCLUDE_DIR) IF (PAM_FOUND) IF (NOT PAM_FIND_QUIETLY) MESSAGE(STATUS "Found PAM (include path: ${PAM_INCLUDE_DIR})") ENDIF (NOT PAM_FIND_QUIETLY) ELSE (PAM_FOUND) IF (PAM_FIND_REQUIRED) MESSAGE(FATAL_ERROR "Could not find PAM") ENDIF (PAM_FIND_REQUIRED) ENDIF (PAM_FOUND)