r17886: add talloc_ptrtype() and talloc_array_ptrtype(),

[samba.git] / source / lib / talloc / config.m4

diff --git a/source/lib/talloc/config.m4 b/source/lib/talloc/config.m4
index 298c6691b9565c71cf19c6edb0b569262022fa08..0286bde6c2805581cdceff94aa7f044e4c6cf952 100644 (file)
--- a/source/lib/talloc/config.m4
+++ b/source/lib/talloc/config.m4
@@ -1,3 +1,32 @@
-if test x"$experimental" = x"yes"; then
-       SMB_LIBRARY_ENABLE(libtalloc,YES)
+AC_CHECK_HEADERS(stdarg.h vararg.h)
+
+dnl VA_COPY
+AC_CACHE_CHECK([for va_copy],samba_cv_HAVE_VA_COPY,[
+AC_TRY_LINK([#include <stdarg.h>
+va_list ap1,ap2;], [va_copy(ap1,ap2);],
+samba_cv_HAVE_VA_COPY=yes,samba_cv_HAVE_VA_COPY=no)])
+if test x"$samba_cv_HAVE_VA_COPY" = x"yes"; then
+    AC_DEFINE(HAVE_VA_COPY,1,[Whether va_copy() is available])
+fi
+
+if test x"$samba_cv_HAVE_VA_COPY" != x"yes"; then
+AC_CACHE_CHECK([for __va_copy],samba_cv_HAVE___VA_COPY,[
+AC_TRY_LINK([#include <stdarg.h>
+va_list ap1,ap2;], [__va_copy(ap1,ap2);],
+samba_cv_HAVE___VA_COPY=yes,samba_cv_HAVE___VA_COPY=no)])
+if test x"$samba_cv_HAVE___VA_COPY" = x"yes"; then
+    AC_DEFINE(HAVE___VA_COPY,1,[Whether __va_copy() is available])
+fi
+fi
+
+AC_CHECK_TYPE(intptr_t, unsigned long long)
+AC_CHECK_SIZEOF(size_t,cross)
+AC_CHECK_SIZEOF(void *,cross)
+
+if test $ac_cv_sizeof_size_t -lt $ac_cv_sizeof_void_p; then
+       AC_WARN([size_t cannot represent the amount of used memory of a process])
+       AC_WARN([please report this to <samba-technical@samba.org>])
+       AC_WARN([sizeof(size_t) = $ac_cv_sizeof_size_t])
+       AC_WARN([sizeof(void *) = $ac_cv_sizeof_void_p])
+       AC_ERROR([sizeof(size_t) < sizeof(void *)])
 fi