1# Misc. helper macros 2 3AC_DEFUN([AC_CHECK_SUN_LEN],[ 4 AC_MSG_CHECKING(for sun_len member in struct sockaddr_un) 5 AC_COMPILE_IFELSE([ 6 AC_LANG_PROGRAM([[ 7 #include <sys/un.h> 8 ]],[[ 9 struct sockaddr_un dummy; 10 dummy.sun_len = 0; 11 ]])],[ 12 AC_DEFINE(HAVE_SOCKADDR_UN_SUN_LEN, 1, [Define if the struct sockaddr_un has a member sun_len on your OS]) 13 AC_MSG_RESULT(yes)],[ 14 AC_MSG_RESULT(no)]) 15 ]) 16 17