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

   1 dnl ---------------------------------------------------------------------------
   2 dnl Macro: PROTOCOL_BINARY_TEST
   3 dnl ---------------------------------------------------------------------------
   4
   5 AC_DEFUN([PROTOCOL_BINARY_TEST], [
   6     AC_LANG_PUSH([C++])
   7     AC_CACHE_CHECK([for supported struct padding], [ac_cv_supported_struct_padding], [
   8       AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
   9           [ #include <inttypes.h>
  10 #include "libmemcached/memcached/protocol_binary.h"
  11           ], [ protocol_binary_request_set request;
  12           int a = 1;
  13           switch (a) {
  14           case sizeof(request):
  15           case sizeof(request.bytes):
  16           break;
  17           default:
  18           a = 2;
  19           }
  20           ])],
  21         [ ac_cv_supported_struct_padding=no ],
  22         [ ac_cv_supported_struct_padding=yes ])
  23       ])
  24       AC_LANG_POP
  25       AS_IF([test "x$ac_cv_supported_struct_padding" = "xno"],[ AC_MSG_ERROR([Unsupported struct padding done by compiler.])])
  26       ])
  27
  28 dnl ---------------------------------------------------------------------------
  29 dnl End Macro: PROTOCOL_BINARY_TEST
  30 dnl ---------------------------------------------------------------------------