Can't install with 64-bit Python3 on AIX 7.1

With Python3 from IBM’s AIX Toolbox site, I can’t install psutil. It fails to build the C code:

psutil/arch/aix/net_connections.c:63:15: error: 'struct mbuf' has no member named 'm_len'
         if (mb.m_len > sizeof(struct sockaddr_un))
               ^
psutil/arch/aix/net_connections.c:64:15: error: 'struct mbuf' has no member named 'm_len'
             mb.m_len = sizeof(struct sockaddr_un);
               ^
psutil/arch/aix/net_connections.c:65:26: error: 'struct mbuf' has no member named 'm_len'
         *((char *)ua + mb.m_len - 1) = '\0';
                          ^

This build of Python is 64-bit:

$ python3 -c 'import struct; print(struct.calcsize("P"))'
8

I can get it to build by editing psutil/arch/aix/net_kernel_structs.h to move the last #define outside of the conditional.

$ git diff | cat
diff --git a/psutil/arch/aix/net_kernel_structs.h b/psutil/arch/aix/net_kernel_structs.h
index 09f320ff..11e343d8 100644
--- a/psutil/arch/aix/net_kernel_structs.h
+++ b/psutil/arch/aix/net_kernel_structs.h
@@ -105,6 +105,6 @@ struct mbuf64
     struct m_hdr64 m_hdr;
 };

-#define m_len               m_hdr.mh_len
+#endif

-#endif
\ No newline at end of file
+#define m_len               m_hdr.mh_len

But, I assume this was inside the conditional for a reason, most likely that it will break on other AIX versions which I don’t have access to test on.

[wiggin15]

@tbrownaw can you please try this fix instead?

diff --git a/psutil/arch/aix/net_kernel_structs.h b/psutil/arch/aix/net_kernel_structs.h
index 09f320ff..60194f80 100644
--- a/psutil/arch/aix/net_kernel_structs.h
+++ b/psutil/arch/aix/net_kernel_structs.h
@@ -18,6 +18,7 @@
 #include <sys/protosw.h>
 #include <sys/unpcb.h>
 #include <sys/mbuf_base.h>
+#include <sys/mbuf_macro.h>
 #include <netinet/ip_var.h>
 #include <netinet/tcp.h>
 #include <netinet/tcpip.h>

[giampaolo]

Thanks Arnon.