X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=configure.ac;h=3b781ba5df32b630d46c3de9f56c7e54e944658a;hp=41ddc6c1b4f055a086c6a3551c69237de2f76443;hb=b516a575ebbc69a2d46b1446783d13db20920bc9;hpb=4ab70e9410b444acce68bb2a2705fd705fa36989

diff --git a/configure.ac b/configure.ac
index 41ddc6c1..3b781ba5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,6 +18,8 @@ AC_PROG_CC_C99
 AC_PROG_CPP
 AC_PROG_INSTALL
 
+AM_PROG_CC_C_O
+
 dnl Check and set OS
 
 AC_CANONICAL_HOST
@@ -158,7 +160,7 @@ dnl Checks for header files.
 dnl We do this in multiple stages, because unlike Linux all the other operating systems really suck and don't include their own dependencies.
 
 AC_HEADER_STDC
-AC_CHECK_HEADERS([stdbool.h syslog.h sys/file.h sys/ioctl.h sys/mman.h sys/param.h sys/resource.h sys/socket.h sys/time.h time.h sys/uio.h sys/wait.h netdb.h arpa/inet.h arpa/nameser.h dirent.h])
+AC_CHECK_HEADERS([stdbool.h syslog.h sys/file.h sys/ioctl.h sys/mman.h sys/param.h sys/resource.h sys/socket.h sys/time.h time.h sys/uio.h sys/wait.h netdb.h arpa/inet.h arpa/nameser.h dirent.h getopt.h])
 AC_CHECK_HEADERS([net/if.h net/if_types.h linux/if_tun.h net/if_tun.h net/tun/if_tun.h net/if_tap.h net/tap/if_tap.h net/ethernet.h net/if_arp.h netinet/in_systm.h netinet/in.h netinet/in6.h netpacket/packet.h],
   [], [], [#include "src/have.h"]
 )
@@ -189,6 +191,9 @@ AC_CHECK_FUNCS([asprintf daemon fchmod flock ftime fork get_current_dir_name get
   [], [], [#include "src/have.h"]
 )
 
+AC_CHECK_FUNC(getopt_long, [getopt=true; AC_DEFINE(HAVE_GETOPT_LONG, 1, [getopt_long()])], [getopt=false])
+AM_CONDITIONAL(GETOPT, test "$getopt" = true)
+
 dnl Support for SunOS
 
 AC_CHECK_FUNC(socket, [], [