Conditional compilation of localnetwork matching

Some architectures (esp32) might not have this API.

Fixes: #263

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>

tests/unittests/CMakeLists.txt

@@ -48,11 +48,15 @@ if (UNIX AND NOT WIN32)
         torture_pki_ed25519
         # requires /dev/null
         torture_channel
-        # requires some non-standard API from netdb.h, in.h
-        # and arpa/inet.h for handling IP addresses
-        torture_config_match_localnetwork
     )
-
+    if (HAVE_IFADDRS_H)
+        set(LIBSSH_UNIT_TESTS
+            ${LIBSSH_UNIT_TESTS}
+            # requires some non-standard API from netdb.h, in.h
+            # and arpa/inet.h for handling IP addresses
+            torture_config_match_localnetwork
+        )
+    endif (HAVE_IFADDRS_H)
     if (WITH_SERVER)
         set(LIBSSH_UNIT_TESTS
             ${LIBSSH_UNIT_TESTS}

tests/unittests/torture_config_match_localnetwork.c

@@ -3,7 +3,9 @@
 #include "libssh/options.h"
 #include "libssh/session.h"
 #include "match.c"
+#ifdef HAVE_IFADDRS_H
 #include <ifaddrs.h>
+#endif
 #include <net/if.h>
 #include <stdbool.h>