git.m6w6.name Git - awesomized/libmemcached/blob - m4/check_sock_cloexec.m4

   1 # Author?
   2 # AX_CHECK_SOCK_CLOEXEC([action-if-found], [action-if-not-found])
   3 #
   4
   5 #serial 2
   6
   7 AC_DEFUN([AX_CHECK_SOCK_CLOEXEC], [
   8     AC_CACHE_CHECK([whether SOCK_CLOEXEC is supported], [ax_cv_sock_cloexec], [
   9       AC_LANG_PUSH([C])
  10       AC_RUN_IFELSE([
  11         AC_LANG_PROGRAM([
  12
  13           /* SOCK_CLOEXEC test */
  14 #include <sys/types.h>
  15 #include <sys/socket.h>
  16
  17           ], [
  18           int s= socket(PF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0);
  19           return (s == -1);
  20           ])],
  21         [ax_cv_sock_cloexec=yes],
  22         [ax_cv_sock_cloexec=no],
  23         [AC_MSG_WARN([test program execution failed])])
  24       ])
  25
  26     AS_IF([test x"ax_cv_sock_cloexec" = xyes], [AC_MSG_RESULT([yes]) ; $1], AC_MSG_RESULT([no]) ; $2)
  27     ])