* Brian Barrett wrote on Wed, Jan 11, 2006 at 05:28:55AM CET: > On Jan 10, 2006, at 12:15 PM, Ralf Wildenhues wrote: > > * Greg Watson wrote on Tue, Jan 10, 2006 at 05:58:35PM CET: > >> Running configure from 1.0.2a3 on OSX 10.4.3: > >> > >> configure: WARNING: net/if.h: present but cannot be compiled > >> configure: WARNING: net/if.h: check for missing prerequisite > >> headers? > > > > Yes. The test is broken. You need to > > #include <sys/socket.h> > > first. See > > > > info Autoconf "Header Portability" > > under `net/if.h' for a complete description. > > But as I understand it, this isn't anything we can do anything about, > right? I mean, other than report it to the AC developers?
Erm, no. Quoting the complete description: | `net/if.h' | On Darwin, this file requires that `sys/socket.h' be included | beforehand. One should run: | | AC_CHECK_HEADERS([sys/socket.h]) | AC_CHECK_HEADERS([net/if.h], [], [], | [#include <stdio.h> | #if STDC_HEADERS | # include <stdlib.h> | # include <stddef.h> | #else | # if HAVE_STDLIB_H | # include <stdlib.h> | # endif | #endif | #if HAVE_SYS_SOCKET_H | # include <sys/socket.h> | #endif | ]) Do exactly as told (in both configure.ac/your macro, and also use the header order in the code that uses net/if.h). If the error persists, _then_ there is reason to report an Autoconf bug. Cheers, Ralf
