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netconfig: Fix build issue with missing _GNU_SOURCE

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CC       src/netconfig.o
src/netconfig.c: In function ‘netconfig_load_settings’:
src/netconfig.c:290:23: error: ‘HOST_NAME_MAX’ undeclared (first use in this function); did you mean ‘XATTR_NAME_MAX’?
  290 |         char hostname[HOST_NAME_MAX + 1];
      |                       ^~~~~~~~~~~~~
      |                       XATTR_NAME_MAX
src/netconfig.c:290:23: note: each undeclared identifier is reported only once for each function it appears in
src/netconfig.c:388:30: error: implicit declaration of function ‘gethostname’; did you mean ‘getsockname’? [-Wimplicit-function-declaration]
  388 |         if (send_hostname && gethostname(hostname, sizeof(hostname)) != 0) {
      |                              ^~~~~~~~~~~
      |                              getsockname
src/netconfig.c:290:14: error: unused variable ‘hostname’ [-Werror=unused-variable]
  290 |         char hostname[HOST_NAME_MAX + 1];
      |              ^~~~~~~~
This commit is contained in:
Marcel Holtmann 2026-02-10 09:19:56 +01:00
parent 30049f5822
commit 88d2718b50
1 changed files with 2 additions and 0 deletions
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2
src/netconfig.c
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@ -24,6 +24,7 @@
#include <config.h>
#endif
#define _GNU_SOURCE
#include <errno.h>
#include <arpa/inet.h>
#include <net/if_arp.h>
@ -31,6 +32,7 @@
#include <limits.h>
#include <string.h>
#include <fcntl.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>