Enable building IPC filtering with cmake.

CMakeLists.txt

@@ -40,6 +40,7 @@ include(CheckCXXCompilerFlag)
 include(CheckCSourceCompiles)
 include(CheckCSourceRuns)
 include(CMakeDependentOption)
+include(CheckCXXSymbolExists)
 
 check_include_files(ifaddrs.h ZMQ_HAVE_IFADDRS)
 check_include_files(windows.h ZMQ_HAVE_WINDOWS)
@@ -51,6 +52,9 @@ check_library_exists(ws2 printf "" HAVE_WS2)
 check_library_exists(rpcrt4 printf "" HAVE_RPCRT4) # UuidCreateSequential
 check_library_exists(iphlpapi printf "" HAVE_IPHLAPI) # GetAdaptersAddresses
 
+check_cxx_symbol_exists(SO_PEERCRED sys/socket.h ZMQ_HAVE_SO_PEERCRED)
+check_cxx_symbol_exists(LOCAL_PEERCRED sys/socket.h ZMQ_HAVE_LOCAL_PEERCRED)
+
 find_library(RT_LIBRARY rt)
 
 find_package(Threads)
@@ -630,6 +634,7 @@ list(APPEND tests
         test_abstract_ipc
         test_fork
         test_proxy
+        test_filter_ipc
 )
 endif()
 

builds/cmake/platform.hpp.in

@@ -19,6 +19,9 @@
 #cmakedefine ZMQ_HAVE_EVENTFD
 #cmakedefine ZMQ_HAVE_IFADDRS
 
+#cmakedefine ZMQ_HAVE_SO_PEERCRED
+#cmakedefine ZMQ_HAVE_LOCAL_PEERCRED
+
 #cmakedefine ZMQ_HAVE_SOCK_CLOEXEC
 #cmakedefine ZMQ_HAVE_SO_KEEPALIVE
 #cmakedefine ZMQ_HAVE_TCP_KEEPCNT