source/lib/talloc/config.m4

   1 AC_CHECK_HEADERS(stdarg.h vararg.h)
   2
   3 dnl VA_COPY
   4 AC_CACHE_CHECK([for va_copy],samba_cv_HAVE_VA_COPY,[
   5 AC_TRY_LINK([#include <stdarg.h>
   6 va_list ap1,ap2;], [va_copy(ap1,ap2);],
   7 samba_cv_HAVE_VA_COPY=yes,samba_cv_HAVE_VA_COPY=no)])
   8 if test x"$samba_cv_HAVE_VA_COPY" = x"yes"; then
   9     AC_DEFINE(HAVE_VA_COPY,1,[Whether va_copy() is available])
  10 fi
  11
  12 if test x"$samba_cv_HAVE_VA_COPY" != x"yes"; then
  13 AC_CACHE_CHECK([for __va_copy],samba_cv_HAVE___VA_COPY,[
  14 AC_TRY_LINK([#include <stdarg.h>
  15 va_list ap1,ap2;], [__va_copy(ap1,ap2);],
  16 samba_cv_HAVE___VA_COPY=yes,samba_cv_HAVE___VA_COPY=no)])
  17 if test x"$samba_cv_HAVE___VA_COPY" = x"yes"; then
  18     AC_DEFINE(HAVE___VA_COPY,1,[Whether __va_copy() is available])
  19 fi
  20 fi
  21
  22 AC_CHECK_TYPE(intptr_t, unsigned long long)
  23 AC_CHECK_SIZEOF(size_t,cross)
  24 AC_CHECK_SIZEOF(void *,cross)
  25
  26 if test $ac_cv_sizeof_size_t -lt $ac_cv_sizeof_void_p; then
  27         AC_WARN([size_t cannot represent the amount of used memory of a process])
  28         AC_WARN([please report this to <samba-technical@samba.org>])
  29         AC_WARN([sizeof(size_t) = $ac_cv_sizeof_size_t])
  30         AC_WARN([sizeof(void *) = $ac_cv_sizeof_void_p])
  31         AC_ERROR([sizeof(size_t) < sizeof(void *)])
  32 fi