build: Add support for GCC 100.17.5

GCC 10 defaults to -fno-common, so some variables that were defined in
the headers needed to be declared "extern". The GCC 10 static analyzer
can now be invoked using the DebugAnalyzer build option.

Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>

7 files changed, 8 insertions, 5 deletions

diff --git a/src/ipcpd/unicast/dir.c b/src/ipcpd/unicast/dir.c
index 43ee94f0..b99380fe 100644
--- a/src/ipcpd/unicast/dir.c
+++ b/src/ipcpd/unicast/dir.c
@@ -45,6 +45,7 @@
 
 #define KAD_B (hash_len(ipcpi.dir_hash_algo) * CHAR_BIT)
 
+struct ipcp icpci;
 struct dht * dht;
 
 int dir_init(void)
diff --git a/src/ipcpd/unicast/main.c b/src/ipcpd/unicast/main.c
index 43052209..0ab37d25 100644
--- a/src/ipcpd/unicast/main.c
+++ b/src/ipcpd/unicast/main.c
@@ -55,6 +55,8 @@
 
 #define THIS_TYPE IPCP_UNICAST
 
+struct ipcp ipcpi;
+
 static int initialize_components(const struct ipcp_config * conf)
 {
         ipcpi.layer_name = strdup(conf->layer_info.layer_name);
diff --git a/src/ipcpd/unicast/pol/alternate_pff.h b/src/ipcpd/unicast/pol/alternate_pff.h
index 5e5fca3d..b3d9c83c 100644
--- a/src/ipcpd/unicast/pol/alternate_pff.h
+++ b/src/ipcpd/unicast/pol/alternate_pff.h
@@ -56,6 +56,6 @@ int            alternate_flow_state_change(struct pff_i * pff_i,
                                            int            fd,
                                            bool           up);
 
-struct pol_pff_ops alternate_pff_ops;
+extern struct pol_pff_ops alternate_pff_ops;
 
 #endif /* OUROBOROS_IPCPD_UNICAST_ALTERNATE_PFF_H */
diff --git a/src/ipcpd/unicast/pol/flat.h b/src/ipcpd/unicast/pol/flat.h
index 54460bb3..a542d7b7 100644
--- a/src/ipcpd/unicast/pol/flat.h
+++ b/src/ipcpd/unicast/pol/flat.h
@@ -31,6 +31,6 @@ int      flat_fini(void);
 
 uint64_t flat_address(void);
 
-struct pol_addr_auth_ops flat_ops;
+extern struct pol_addr_auth_ops flat_ops;
 
 #endif /* OUROBOROS_IPCPD_UNICAST_FLAT_H */
diff --git a/src/ipcpd/unicast/pol/link_state.h b/src/ipcpd/unicast/pol/link_state.h
index 9d4858e1..9a1ada1b 100644
--- a/src/ipcpd/unicast/pol/link_state.h
+++ b/src/ipcpd/unicast/pol/link_state.h
@@ -36,6 +36,6 @@ struct routing_i * link_state_routing_i_create(struct pff * pff);
 
 void               link_state_routing_i_destroy(struct routing_i * instance);
 
-struct pol_routing_ops link_state_ops;
+extern struct pol_routing_ops link_state_ops;
 
 #endif /* OUROBOROS_IPCPD_UNICAST_POL_LINK_STATE_H */
diff --git a/src/ipcpd/unicast/pol/multipath_pff.h b/src/ipcpd/unicast/pol/multipath_pff.h
index a8ee088f..ecbb664a 100644
--- a/src/ipcpd/unicast/pol/multipath_pff.h
+++ b/src/ipcpd/unicast/pol/multipath_pff.h
@@ -53,6 +53,6 @@ void multipath_pff_flush(struct pff_i * pff_i);
 int            multipath_pff_nhop(struct pff_i * pff_i,
                                   uint64_t       addr);
 
-struct pol_pff_ops multipath_pff_ops;
+extern struct pol_pff_ops multipath_pff_ops;
 
 #endif /* OUROBOROS_IPCPD_UNICAST_MULTIPATH_PFF_H */
diff --git a/src/ipcpd/unicast/pol/simple_pff.h b/src/ipcpd/unicast/pol/simple_pff.h
index 2dfce45c..5c972347 100644
--- a/src/ipcpd/unicast/pol/simple_pff.h
+++ b/src/ipcpd/unicast/pol/simple_pff.h
@@ -52,6 +52,6 @@ void           simple_pff_flush(struct pff_i * pff_i);
 int            simple_pff_nhop(struct pff_i * pff_i,
                                uint64_t       addr);
 
-struct pol_pff_ops simple_pff_ops;
+extern struct pol_pff_ops simple_pff_ops;
 
 #endif /* OUROBOROS_IPCPD_UNICAST_SIMPLE_PFF_H */