fixed bug #43235, checking for non-existent preprocessor macros is non-standard, added predefinition for all affected macros

src/include/lwip/opt.h

@@ -1780,12 +1780,41 @@
 #endif
 
 /**
- * LWIP_PPP_API==1: Support PPP API (in pppapi.c)
+ * PRINTPKT_SUPPORT==1: Enable PPP print packet support
+ *
+ * Mandatory for debugging, it displays exchanged packet content in debug trace.
+ */
+#ifndef PRINTPKT_SUPPORT
+#define PRINTPKT_SUPPORT                0
+#endif
+
+/**
+ * PPP_IPV6_SUPPORT==1: Enable PPP IPv6 support
+ */
+#ifndef PPP_IPV6_SUPPORT
+#define PPP_IPV6_SUPPORT                0
+#endif
+
+/**
+ * LWIP_PPP_API==1: Enable PPP API (in pppapi.c)
  */
 #ifndef LWIP_PPP_API
 #define LWIP_PPP_API                    0
 #endif
 
+/**
+ * PPP_NOTIFY_PHASE==1: Support PPP notify phase support
+ *
+ * PPP notify phase support allows you to set a callback which is
+ * called on change of the internal PPP state machine.
+ *
+ * This can be used for example to set a LED pattern depending on the
+ * current phase of the PPP session.
+ */
+#ifndef PPP_NOTIFY_PHASE
+#define PPP_NOTIFY_PHASE                0
+#endif
+
 /**
  * pbuf_type PPP is using for LCP, PAP, CHAP, EAP, IPCP and IP6CP packets.
  *
@@ -1832,6 +1861,13 @@
 #define CHAP_SUPPORT                    1 /* MSCHAP requires CHAP support */
 #endif /* MSCHAP_SUPPORT */
 
+/**
+ * EAP_SUPPORT==1: Support EAP.
+ */
+#ifndef EAP_SUPPORT
+#define EAP_SUPPORT                     0
+#endif
+
 /**
  * CBCP_SUPPORT==1: Support CBCP. CURRENTLY NOT SUPPORTED! DO NOT SET!
  */
@@ -1860,6 +1896,13 @@
 #define LQR_SUPPORT                     0
 #endif
 
+/**
+ * PPP_SERVER==1: Enable PPP server support (waiting for incoming PPP session). CURRENTLY NOT SUPPORTED! DO NOT SET!
+ */
+#ifndef PPP_SERVER
+#define PPP_SERVER                      0
+#endif
+
 /**
  * VJ_SUPPORT==1: Support VJ header compression.
  */

src/include/netif/ppp/ppp.h

@@ -48,6 +48,42 @@
 #include "lwip/ip6_addr.h"
 #endif /* PPP_IPV6_SUPPORT */
 
+/* Disable non-working or rarely used PPP feature, so rarely that we don't want to bloat opt.h with them */
+#ifndef PPP_OPTIONS
+#define PPP_OPTIONS         0
+#endif
+
+#ifndef PPP_REMOTENAME
+#define PPP_REMOTENAME      0
+#endif
+
+#ifndef PPP_IDLETIMELIMIT
+#define PPP_IDLETIMELIMIT   0
+#endif
+
+#ifndef PPP_LCP_ADAPTIVE
+#define PPP_LCP_ADAPTIVE    0
+#endif
+
+#ifndef PPP_MAXCONNECT
+#define PPP_MAXCONNECT      0
+#endif
+
+#ifndef DEMAND_SUPPORT
+#define DEMAND_SUPPORT      0
+#endif
+
+#ifndef PPP_ALLOWED_ADDRS
+#define PPP_ALLOWED_ADDRS   0
+#endif
+
+#ifndef PPP_PROTOCOLNAME
+#define PPP_PROTOCOLNAME    0
+#endif
+
+#ifndef PPP_STATS_SUPPORT
+#define PPP_STATS_SUPPORT   0
+#endif
 
 
 /*************************