Compiler error with czmq and pcap

[nickbroon]

built with DSUPPORT_ZMQ=ON enabled.

$ cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_INSTALL_PREFIX=/tmp -DCMAKE_BUILD_TYPE=RelWithDebInfo -DSUPPORT_JOURNALD=ON -DSUPPORT_DTLS=OFF -DSUPPORT_ZMQ=ON
$ make -k

Version of czmq and pcap installed:

$ dpkg -l | grep libczmq-dev
ii  libczmq-dev:amd64                          4.2.0-2                                amd64        High-level C binding for ZeroMQ (development files)
$ dpkg -l | grep libpcap-dev
ii  libpcap-dev:amd64                          1.9.1-2                                amd64        development library for libpcap (transitional package)

Resulting the following compilation failures:

In file included from /home/user1/work/vermont/src/modules/packet/PSAMPExporterCfg.cpp:22:                              
In file included from /home/user1/work/vermont/src/modules/packet/PSAMPExporterCfg.h:25:                                
In file included from /home/user1/work/vermont/src/modules/ipfix/CollectorCfg.h:33:                                     
In file included from /home/user1/work/vermont/src/modules/ipfix/IpfixReceiverZmq.hpp:32:                               
In file included from /usr/include/czmq.h:37:                                                                           
In file included from /usr/include/czmq_library.h:23:                                                                   
/usr/include/czmq_prelude.h:665:13: error: cannot combine with previous 'int' declaration specifier                     
typedef int SOCKET;                                                                                                     
            ^                                                                                                           
/usr/include/pcap/socket.h:79:20: note: expanded from macro 'SOCKET'                                                    
    #define SOCKET int                                                                                                  
                   ^                                                                                                    
1 error generated.                                                                                                      
make[2]: *** [src/modules/CMakeFiles/modules.dir/build.make:544: src/modules/CMakeFiles/modules.dir/packet/PSAMPExporterCfg.cpp.o] Error 1                                                                                                     
                                                                                                                        
In file included from /home/user1/work/vermont/src/modules/ipfix/IpfixCollectorCfg.cpp:22:                              
In file included from /home/user1/work/vermont/src/modules/ipfix/CollectorCfg.h:33:                                     
In file included from /home/user1/work/vermont/src/modules/ipfix/IpfixReceiverZmq.hpp:32:                               
In file included from /usr/include/czmq.h:37:                                                                           
In file included from /usr/include/czmq_library.h:23:                                                                   
/usr/include/czmq_prelude.h:665:13: error: cannot combine with previous 'int' declaration specifier                     
typedef int SOCKET;                                                                                                     
            ^                                                                                                           
/usr/include/pcap/socket.h:79:20: note: expanded from macro 'SOCKET'                                                    
    #define SOCKET int                                                                                                  
                   ^                                                                                                    
1 error generated.                                                                                                      
make[2]: *** [src/modules/CMakeFiles/modules.dir/build.make:804: src/modules/CMakeFiles/modules.dir/ipfix/IpfixCollectorCfg.cpp.o] Error 1                                                                                                     
                                                                                                                        
In file included from /home/user1/work/vermont/src/modules/ipfix/IpfixExporterCfg.cpp:25:                               
In file included from /home/user1/work/vermont/src/modules/ipfix/IpfixExporterCfg.h:25:                                 
In file included from /home/user1/work/vermont/src/modules/ipfix/CollectorCfg.h:33:                                     
In file included from /home/user1/work/vermont/src/modules/ipfix/IpfixReceiverZmq.hpp:32:                               
In file included from /usr/include/czmq.h:37:                                                                           
In file included from /usr/include/czmq_library.h:23:                                                                   
/usr/include/czmq_prelude.h:665:13: error: cannot combine with previous 'int' declaration specifier                     
typedef int SOCKET;                                                                                                     
            ^                                                                                                           
/usr/include/pcap/socket.h:79:20: note: expanded from macro 'SOCKET'                                                    
    #define SOCKET int                                                                                                  
                   ^                                                                                                    
1 error generated.                                                                                                      
make[2]: *** [src/modules/CMakeFiles/modules.dir/build.make:843: src/modules/CMakeFiles/modules.dir/ipfix/IpfixExporterCfg.cpp.o] Error 1  

[nickbroon]

Question about this at: https://gitter.im/zeromq/czmq?at=5dfb74b1d2dadb389342f5de

[bluca]

order of includes? The prelude.h should have never been a public header...