source/pcap-file: remove unused macro warning

diff --git a/src/source-pcap-file.c b/src/source-pcap-file.c
index 9c9f405eb4e72c6e4823f7460ea370acf2d223bf..f87c41cda3a43e9d2ca85ab317653b8913fee174 100644 (file)
--- a/src/source-pcap-file.c
+++ b/src/source-pcap-file.c
@@ -137,9 +137,11 @@ void TmModuleDecodePcapFileRegister (void)
     tmm_modules[TMM_DECODEPCAPFILE].flags = TM_FLAG_DECODE_TM;
 }
 
+#if defined(HAVE_SETVBUF) && defined(OS_LINUX)
 #define PCAP_FILE_BUFFER_SIZE_DEFAULT 131072U   // 128 KiB
 #define PCAP_FILE_BUFFER_SIZE_MIN     4096U     // 4 KiB
 #define PCAP_FILE_BUFFER_SIZE_MAX     67108864U // 64MiB
+#endif
 
 void PcapFileGlobalInit(void)
 {