build: avoid getifaddrs when unavailable

theuni · Jul 19, 2018 · 6c32dd0 · 6c32dd0
1 parent e1260a7
commit 6c32dd0
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/configure.ac b/configure.ac
@@ -726,6 +726,10 @@ fi
 
 AC_CHECK_HEADERS([endian.h sys/endian.h byteswap.h stdio.h stdlib.h unistd.h strings.h sys/types.h sys/stat.h sys/select.h sys/prctl.h])
 
+AC_CHECK_DECLS([getifaddrs, freeifaddrs],,,
+    [#include <sys/types.h>
+    #include <ifaddrs.h>]
+)
 AC_CHECK_DECLS([strnlen])
 
 # Check for daemon(3), unrelated to --with-daemon (although used by it)

diff --git a/src/net.cpp b/src/net.cpp
@@ -2157,7 +2157,7 @@ void Discover()
             }
         }
     }
-#else
+#elif (HAVE_DECL_GETIFADDRS && HAVE_DECL_FREEIFADDRS)
     // Get local host ip
     struct ifaddrs* myaddrs;
     if (getifaddrs(&myaddrs) == 0)