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dnl Checks for libcap.so
dnl
AC_DEFUN([AC_LIBCAP], [

  dnl look for prctl
  AC_CHECK_FUNC([prctl], , )

  dnl look for the library; do not add to LIBS if found
  AC_CHECK_LIB([cap], [cap_get_proc], enable_libcap="yes", enable_libcap="no", )

  AC_CHECK_HEADERS([sys/capability.h], ,
                   [AC_MSG_WARN([libcap headers not found. mount.cifs will be built without support for dropping capabilities. Consider installing libcap-devel.]) ; enable_libcap="no"])

  if test "$enable_libcap" = "yes"; then
	AC_DEFINE([HAVE_LIBCAP],[1], [Define if libcap exists])
	LIBCAP=-lcap
	AC_SUBST(LIBCAP)
  fi

])dnl