fix mkdir check.

git-svn-id: file:///svn/unbound/trunk@1119 be551aaa-1e26-0410-a405-d3ace91eadb9

config.h.in

@@ -307,9 +307,11 @@
 /* in_port_t */
 #undef in_port_t
 
-/* Define as `__inline' if that's what the C compiler calls it, or to nothing
-   if it is not supported. */
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+   calls it, or to nothing if 'inline' is not supported under any name.  */
+#ifndef __cplusplus
 #undef inline
+#endif
 
 /* Define to `short' if <sys/types.h> does not define. */
 #undef int16_t
@@ -326,7 +328,7 @@
 /* Define to rpl_malloc if the replacement function should be used. */
 #undef malloc
 
-/* Define to `long' if <sys/types.h> does not define. */
+/* Define to `long int' if <sys/types.h> does not define. */
 #undef off_t
 
 /* Define to `int' if <sys/types.h> does not define. */
@@ -335,7 +337,7 @@
 /* Define to 'int' if not defined */
 #undef rlim_t
 
-/* Define to `unsigned' if <sys/types.h> does not define. */
+/* Define to `unsigned int' if <sys/types.h> does not define. */
 #undef size_t
 
 /* Define to 'int' if not defined */
@@ -527,6 +529,7 @@ struct sockaddr_storage;
 #define srandom(x) srand(x) /* on win32, for tests only (bad random) */
 #endif /* HAVE_SRANDOM */
 
+/* detect if we need to cast to unsigned int for FD_SET to avoid warnings */
 #ifdef HAVE_WINSOCK2_H
 #define FD_SET_T (u_int)
 #else

configure.ac

@@ -734,6 +734,9 @@ AC_TRY_COMPILE([
 #ifdef HAVE_WINSOCK2_H
 #include <winsock2.h>
 #endif
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
 ], [
 	(void)mkdir("directory");
 ],