commit 49343f6fab6fe2d099015e1fef7384e26e58baff
author Alexander Afanasyev <alexander.afanasyev@ucla.edu> Mon Jan 26 21:58:07 2015 -0800
committer Alexander Afanasyev <alexander.afanasyev@ucla.edu> Tue Jan 27 18:13:50 2015 -0800
tree 62ff456f2961e25e0e71e57a7e2b5fe0ac637cb9
parent 5d4c977f641ab1a80b54bbcf7460360f7147d302

build: Add conditional compilation

Two conditionals are introduced in this commit:
- if <ifaddrs.h> is not available, NetworkInterface helper will always return
  an empty set of interfaces
- If dropping/elevating effective user/group is not supported, an error
  will be thrown if used (e.g., if general.user or general.group is
  configured)

Both conditionals are necessary on Android platform.

Change-Id: Ib360e03514af97ed2d68032fbcbe279a8dc84682

core/network-interface.cpp

diff --git a/core/network-interface.cpp b/core/network-interface.cpp
index 1aad63e..c6d23a3 100644
--- a/core/network-interface.cpp
+++ b/core/network-interface.cpp
@@ -31,9 +31,11 @@
 #include <type_traits>
 #include <unordered_map>
 
+#ifdef HAVE_IFADDRS_H
+#include <ifaddrs.h>     // for getifaddrs()
+
 #include <arpa/inet.h>   // for inet_ntop()
 #include <netinet/in.h>  // for struct sockaddr_in{,6}
-#include <ifaddrs.h>     // for getifaddrs()
 
 #if defined(__linux__)
 #include <net/if_arp.h>        // for ARPHRD_* constants
@@ -43,6 +45,9 @@
 #include <net/if_types.h>      // for IFT_* constants
 #endif
 
+#endif // HAVE_IFADDRS_H
+
+
 NFD_LOG_INIT("NetworkInterfaceInfo");
 
 namespace nfd {
@@ -73,6 +78,7 @@
   }
 #endif
 
+#ifdef HAVE_IFADDRS_H
   using namespace boost::asio::ip;
   using std::strerror;
 
@@ -170,6 +176,9 @@
   }
 
   return v;
+#else
+  return {};
+#endif // HAVE_IFADDRS_H
 }
 
 } // namespace nfd